OpenVDB: openvdb/tree/InternalNode.h Source File

OpenVDB 9.1.0

InternalNode.h
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1// Copyright Contributors to the OpenVDB Project
2// SPDX-License-Identifier: MPL-2.0
3//
4/// @file InternalNode.h
5///
6/// @brief Internal table nodes for OpenVDB trees
7
8#ifndef OPENVDB_TREE_INTERNALNODE_HAS_BEEN_INCLUDED
9#define OPENVDB_TREE_INTERNALNODE_HAS_BEEN_INCLUDED
10
11#include <openvdb/Platform.h>
12#include <openvdb/util/NodeMasks.h>
13#include <openvdb/io/Compression.h> // for io::readCompressedValues(), etc.
14#include <openvdb/math/Math.h> // for math::isExactlyEqual(), etc.
15#include <openvdb/version.h>
16#include <openvdb/Types.h>
17#include "Iterator.h"
18#include "NodeUnion.h"
19#include <tbb/parallel_for.h>
20#include <memory>
21#include <type_traits>
22
23
24namespace openvdb {
25 OPENVDB_USE_VERSION_NAMESPACE
26namespace OPENVDB_VERSION_NAME {
27namespace tree {
28
29template<typename, Index, typename> struct SameInternalConfig; // forward declaration
30
31
32template<typename _ChildNodeType, Index Log2Dim>
33 class InternalNode
34{
35public:
36 using ChildNodeType = _ChildNodeType;
37 using LeafNodeType = typename ChildNodeType::LeafNodeType;
38 using ValueType = typename ChildNodeType::ValueType;
39 using BuildType = typename ChildNodeType::BuildType;
40 using UnionType = NodeUnion<ValueType, ChildNodeType>;
41 using NodeMaskType = util::NodeMask<Log2Dim>;
42
43 static const Index
44 LOG2DIM = Log2Dim, // log2 of tile count in one dimension
45 TOTAL = Log2Dim + ChildNodeType::TOTAL, // log2 of voxel count in one dimension
46 DIM = 1 << TOTAL, // total voxel count in one dimension
47 NUM_VALUES = 1 << (3 * Log2Dim), // total voxel count represented by this node
48 LEVEL = 1 + ChildNodeType::LEVEL; // level 0 = leaf
49 static const Index64
50 NUM_VOXELS = uint64_t(1) << (3 * TOTAL); // total voxel count represented by this node
51
52 /// @brief ValueConverter<T>::Type is the type of an InternalNode having the same
53 /// child hierarchy and dimensions as this node but a different value type, T.
54 template<typename OtherValueType>
55 struct ValueConverter {
56 using Type = InternalNode<typename ChildNodeType::template ValueConverter<
57 OtherValueType>::Type, Log2Dim>;
58 };
59
60 /// @brief SameConfiguration<OtherNodeType>::value is @c true if and only if OtherNodeType
61 /// is the type of an InternalNode with the same dimensions as this node and whose
62 /// ChildNodeType has the same configuration as this node's ChildNodeType.
63 template<typename OtherNodeType>
64 struct SameConfiguration {
65 static const bool value =
66 SameInternalConfig<ChildNodeType, Log2Dim, OtherNodeType>::value;
67 };
68
69
70 /// @brief Default constructor
71 /// @warning The resulting InternalNode is uninitialized
72 InternalNode() {}
73
74 /// @brief Constructor of an InternalNode with dense inactive tiles of the specified value.
75 /// @param offValue Background value used for inactive values
76 explicit InternalNode(const ValueType& offValue);
77
78 /// @brief Constructs an InternalNode with dense tiles
79 /// @param origin The location in index space of the fist tile value
80 /// @param fillValue Value assigned to all the tiles
81 /// @param active State assigned to all the tiles
82 InternalNode(const Coord& origin, const ValueType& fillValue, bool active = false);
83
84 InternalNode(PartialCreate, const Coord&, const ValueType& fillValue, bool active = false);
85
86 /// @brief Deep copy constructor
87 ///
88 /// @note This method is multi-threaded!
89 InternalNode(const InternalNode&);
90
91 /// @brief Value conversion copy constructor
92 ///
93 /// @note This method is multi-threaded!
94 template<typename OtherChildNodeType>
95 explicit InternalNode(const InternalNode<OtherChildNodeType, Log2Dim>& other);
96
97 /// @brief Topology copy constructor
98 ///
99 /// @note This method is multi-threaded!
100 template<typename OtherChildNodeType>
101 InternalNode(const InternalNode<OtherChildNodeType, Log2Dim>& other,
102 const ValueType& background, TopologyCopy);
103
104 /// @brief Topology copy constructor
105 ///
106 /// @note This method is multi-threaded!
107 template<typename OtherChildNodeType>
108 InternalNode(const InternalNode<OtherChildNodeType, Log2Dim>& other,
109 const ValueType& offValue, const ValueType& onValue, TopologyCopy);
110
111 ~InternalNode();
112
113protected:
114 using MaskOnIterator = typename NodeMaskType::OnIterator;
115 using MaskOffIterator = typename NodeMaskType::OffIterator;
116 using MaskDenseIterator = typename NodeMaskType::DenseIterator;
117
118 // Type tags to disambiguate template instantiations
119 struct ValueOn {}; struct ValueOff {}; struct ValueAll {};
120 struct ChildOn {}; struct ChildOff {}; struct ChildAll {};
121
122 // The following class templates implement the iterator interfaces specified in Iterator.h
123 // by providing getItem(), setItem() and/or modifyItem() methods.
124
125 // Sparse iterator that visits child nodes of an InternalNode
126 template<typename NodeT, typename ChildT, typename MaskIterT, typename TagT>
127 struct ChildIter: public SparseIteratorBase<
128 MaskIterT, ChildIter<NodeT, ChildT, MaskIterT, TagT>, NodeT, ChildT>
129 {
130 ChildIter() {}
131 ChildIter(const MaskIterT& iter, NodeT* parent): SparseIteratorBase<
132 MaskIterT, ChildIter<NodeT, ChildT, MaskIterT, TagT>, NodeT, ChildT>(iter, parent) {}
133
134 ChildT& getItem(Index pos) const
135 {
136 assert(this->parent().isChildMaskOn(pos));
137 return *(this->parent().getChildNode(pos));
138 }
139
140 // Note: setItem() can't be called on const iterators.
141 void setItem(Index pos, const ChildT& c) const { this->parent().resetChildNode(pos, &c); }
142
143 // Note: modifyItem() isn't implemented, since it's not useful for child node pointers.
144 };// ChildIter
145
146 // Sparse iterator that visits tile values of an InternalNode
147 template<typename NodeT, typename ValueT, typename MaskIterT, typename TagT>
148 struct ValueIter: public SparseIteratorBase<
149 MaskIterT, ValueIter<NodeT, ValueT, MaskIterT, TagT>, NodeT, ValueT>
150 {
151 ValueIter() {}
152 ValueIter(const MaskIterT& iter, NodeT* parent): SparseIteratorBase<
153 MaskIterT, ValueIter<NodeT, ValueT, MaskIterT, TagT>, NodeT, ValueT>(iter, parent) {}
154
155 const ValueT& getItem(Index pos) const { return this->parent().mNodes[pos].getValue(); }
156
157 // Note: setItem() can't be called on const iterators.
158 void setItem(Index pos, const ValueT& v) const { this->parent().mNodes[pos].setValue(v); }
159
160 // Note: modifyItem() can't be called on const iterators.
161 template<typename ModifyOp>
162 void modifyItem(Index pos, const ModifyOp& op) const
163 {
164 op(this->parent().mNodes[pos].getValue());
165 }
166 };// ValueIter
167
168 // Dense iterator that visits both tiles and child nodes of an InternalNode
169 template<typename NodeT, typename ChildT, typename ValueT, typename TagT>
170 struct DenseIter: public DenseIteratorBase<
171 MaskDenseIterator, DenseIter<NodeT, ChildT, ValueT, TagT>, NodeT, ChildT, ValueT>
172 {
173 using BaseT = DenseIteratorBase<MaskDenseIterator, DenseIter, NodeT, ChildT, ValueT>;
174 using NonConstValueT = typename BaseT::NonConstValueType;
175
176 DenseIter() {}
177 DenseIter(const MaskDenseIterator& iter, NodeT* parent):
178 DenseIteratorBase<MaskDenseIterator, DenseIter, NodeT, ChildT, ValueT>(iter, parent) {}
179
180 bool getItem(Index pos, ChildT*& child, NonConstValueT& value) const
181 {
182 if (this->parent().isChildMaskOn(pos)) {
183 child = this->parent().getChildNode(pos);
184 return true;
185 }
186 child = nullptr;
187 value = this->parent().mNodes[pos].getValue();
188 return false;
189 }
190
191 // Note: setItem() can't be called on const iterators.
192 void setItem(Index pos, ChildT* child) const
193 {
194 this->parent().resetChildNode(pos, child);
195 }
196
197 // Note: unsetItem() can't be called on const iterators.
198 void unsetItem(Index pos, const ValueT& value) const
199 {
200 this->parent().unsetChildNode(pos, value);
201 }
202 };// DenseIter
203
204public:
205 // Iterators (see Iterator.h for usage)
206 using ChildOnIter = ChildIter<InternalNode, ChildNodeType, MaskOnIterator, ChildOn>;
207 using ChildOnCIter = ChildIter<const InternalNode,const ChildNodeType,MaskOnIterator,ChildOn>;
208 using ChildOffIter = ValueIter<InternalNode, const ValueType, MaskOffIterator, ChildOff>;
209 using ChildOffCIter = ValueIter<const InternalNode,const ValueType,MaskOffIterator,ChildOff>;
210 using ChildAllIter = DenseIter<InternalNode, ChildNodeType, ValueType, ChildAll>;
211 using ChildAllCIter = DenseIter<const InternalNode,const ChildNodeType, ValueType, ChildAll>;
212
213 using ValueOnIter = ValueIter<InternalNode, const ValueType, MaskOnIterator, ValueOn>;
214 using ValueOnCIter = ValueIter<const InternalNode, const ValueType, MaskOnIterator, ValueOn>;
215 using ValueOffIter = ValueIter<InternalNode, const ValueType, MaskOffIterator, ValueOff>;
216 using ValueOffCIter = ValueIter<const InternalNode,const ValueType,MaskOffIterator,ValueOff>;
217 using ValueAllIter = ValueIter<InternalNode, const ValueType, MaskOffIterator, ValueAll>;
218 using ValueAllCIter = ValueIter<const InternalNode,const ValueType,MaskOffIterator,ValueAll>;
219
220 ChildOnCIter cbeginChildOn() const { return ChildOnCIter(mChildMask.beginOn(), this); }
221 ChildOffCIter cbeginChildOff() const { return ChildOffCIter(mChildMask.beginOff(), this); }
222 ChildAllCIter cbeginChildAll() const { return ChildAllCIter(mChildMask.beginDense(), this); }
223 ChildOnCIter beginChildOn() const { return cbeginChildOn(); }
224 ChildOffCIter beginChildOff() const { return cbeginChildOff(); }
225 ChildAllCIter beginChildAll() const { return cbeginChildAll(); }
226 ChildOnIter beginChildOn() { return ChildOnIter(mChildMask.beginOn(), this); }
227 ChildOffIter beginChildOff() { return ChildOffIter(mChildMask.beginOff(), this); }
228 ChildAllIter beginChildAll() { return ChildAllIter(mChildMask.beginDense(), this); }
229
230 ValueOnCIter cbeginValueOn() const { return ValueOnCIter(mValueMask.beginOn(), this); }
231 /// @warning This iterator will also visit child nodes so use isChildMaskOn to skip them!
232 ValueOffCIter cbeginValueOff() const { return ValueOffCIter(mValueMask.beginOff(), this); }
233 ValueAllCIter cbeginValueAll() const { return ValueAllCIter(mChildMask.beginOff(), this); }
234 ValueOnCIter beginValueOn() const { return cbeginValueOn(); }
235 /// @warning This iterator will also visit child nodes so use isChildMaskOn to skip them!
236 ValueOffCIter beginValueOff() const { return cbeginValueOff(); }
237 ValueAllCIter beginValueAll() const { return cbeginValueAll(); }
238 ValueOnIter beginValueOn() { return ValueOnIter(mValueMask.beginOn(), this); }
239 /// @warning This iterator will also visit child nodes so use isChildMaskOn to skip them!
240 ValueOffIter beginValueOff() { return ValueOffIter(mValueMask.beginOff(), this); }
241 ValueAllIter beginValueAll() { return ValueAllIter(mChildMask.beginOff(), this); }
242
243
244 /// @return The dimension of this InternalNode
245 /// @details The number of voxels in one coordinate direction covered by this node
246 static Index dim() { return DIM; }
247 /// @return The level of this node
248 /// @details Level 0 is by definition the level of the leaf nodes
249 static Index getLevel() { return LEVEL; }
250 /// @brief Populated an std::vector with the dimension of all the
251 /// nodes in the branch starting with this node.
252 static void getNodeLog2Dims(std::vector<Index>& dims);
253 /// @return The dimension of the child nodes of this node.
254 /// @details The number of voxels in one coordinate direction
255 /// covered by a child node of this node.
256 static Index getChildDim() { return ChildNodeType::DIM; }
257
258 /// Return the linear table offset of the given global or local coordinates.
259 static Index coordToOffset(const Coord& xyz);
260 /// @brief Return the local coordinates for a linear table offset,
261 /// where offset 0 has coordinates (0, 0, 0).
262 static void offsetToLocalCoord(Index n, Coord& xyz);
263 /// Return the global coordinates for a linear table offset.
264 Coord offsetToGlobalCoord(Index n) const;
265
266 /// Return the grid index coordinates of this node's local origin.
267 const Coord& origin() const { return mOrigin; }
268 /// Set the grid index coordinates of this node's local origin.
269 void setOrigin(const Coord& origin) { mOrigin = origin; }
270
271#if OPENVDB_ABI_VERSION_NUMBER >= 9
272 /// Return the transient data value.
273 Index32 transientData() const { return mTransientData; }
274 /// Set the transient data value.
275 void setTransientData(Index32 transientData) { mTransientData = transientData; }
276#endif
277
278 Index32 leafCount() const;
279 void nodeCount(std::vector<Index32> &vec) const;
280 Index32 nonLeafCount() const;
281 Index32 childCount() const;
282 Index64 onVoxelCount() const;
283 Index64 offVoxelCount() const;
284 Index64 onLeafVoxelCount() const;
285 Index64 offLeafVoxelCount() const;
286 Index64 onTileCount() const;
287
288 /// Return the total amount of memory in bytes occupied by this node and its children.
289 Index64 memUsage() const;
290
291 /// @brief Expand the specified bounding box so that it includes the active tiles
292 /// of this internal node as well as all the active values in its child nodes.
293 /// If visitVoxels is false LeafNodes will be approximated as dense, i.e. with all
294 /// voxels active. Else the individual active voxels are visited to produce a tight bbox.
295 void evalActiveBoundingBox(CoordBBox& bbox, bool visitVoxels = true) const;
296
297 /// @brief Return the bounding box of this node, i.e., the full index space
298 /// spanned by the node regardless of its content.
299 CoordBBox getNodeBoundingBox() const { return CoordBBox::createCube(mOrigin, DIM); }
300
301 /// @return True if this node contains no child nodes.
302 bool isEmpty() const { return mChildMask.isOff(); }
303
304 /// Return @c true if all of this node's table entries have the same active state
305 /// and the same constant value to within the given tolerance,
306 /// and return that value in @a firstValue and the active state in @a state.
307 ///
308 /// @note This method also returns @c false if this node contains any child nodes.
309 bool isConstant(ValueType& firstValue, bool& state,
310 const ValueType& tolerance = zeroVal<ValueType>()) const;
311
312 /// Return @c true if all of this node's tables entries have
313 /// the same active @a state and the range of its values satisfy
314 /// (@a maxValue - @a minValue) <= @a tolerance.
315 ///
316 /// @param minValue Is updated with the minimum of all values IF method
317 /// returns @c true. Else the value is undefined!
318 /// @param maxValue Is updated with the maximum of all values IF method
319 /// returns @c true. Else the value is undefined!
320 /// @param state Is updated with the state of all values IF method
321 /// returns @c true. Else the value is undefined!
322 /// @param tolerance The tolerance used to determine if values are
323 /// approximately constant.
324 ///
325 /// @note This method also returns @c false if this node contains any child nodes.
326 bool isConstant(ValueType& minValue, ValueType& maxValue,
327 bool& state, const ValueType& tolerance = zeroVal<ValueType>()) const;
328
329 /// Return @c true if this node has no children and only contains inactive values.
330 bool isInactive() const { return this->isChildMaskOff() && this->isValueMaskOff(); }
331
332 /// Return @c true if the voxel at the given coordinates is active.
333 bool isValueOn(const Coord& xyz) const;
334 /// Return @c true if the voxel at the given offset is active.
335 bool isValueOn(Index offset) const { return mValueMask.isOn(offset); }
336
337 /// Return @c true if this node or any of its child nodes have any active tiles.
338 bool hasActiveTiles() const;
339
340 const ValueType& getValue(const Coord& xyz) const;
341 bool probeValue(const Coord& xyz, ValueType& value) const;
342
343 /// @brief Return the level of the tree (0 = leaf) at which the value
344 /// at the given coordinates resides.
345 Index getValueLevel(const Coord& xyz) const;
346
347 /// @brief If the first entry in this node's table is a tile, return the tile's value.
348 /// Otherwise, return the result of calling getFirstValue() on the child.
349 const ValueType& getFirstValue() const;
350 /// @brief If the last entry in this node's table is a tile, return the tile's value.
351 /// Otherwise, return the result of calling getLastValue() on the child.
352 const ValueType& getLastValue() const;
353
354 /// Set the active state of the voxel at the given coordinates but don't change its value.
355 void setActiveState(const Coord& xyz, bool on);
356 /// Set the value of the voxel at the given coordinates but don't change its active state.
357 void setValueOnly(const Coord& xyz, const ValueType& value);
358 /// Mark the voxel at the given coordinates as active but don't change its value.
359 void setValueOn(const Coord& xyz);
360 /// Set the value of the voxel at the given coordinates and mark the voxel as active.
361 void setValueOn(const Coord& xyz, const ValueType& value);
362 /// Mark the voxel at the given coordinates as inactive but don't change its value.
363 void setValueOff(const Coord& xyz);
364 /// Set the value of the voxel at the given coordinates and mark the voxel as inactive.
365 void setValueOff(const Coord& xyz, const ValueType& value);
366
367 /// @brief Apply a functor to the value of the voxel at the given coordinates
368 /// and mark the voxel as active.
369 template<typename ModifyOp>
370 void modifyValue(const Coord& xyz, const ModifyOp& op);
371 /// Apply a functor to the voxel at the given coordinates.
372 template<typename ModifyOp>
373 void modifyValueAndActiveState(const Coord& xyz, const ModifyOp& op);
374
375 /// Return the value of the voxel at the given coordinates and, if necessary, update
376 /// the accessor with pointers to the nodes along the path from the root node to
377 /// the node containing the voxel.
378 /// @note Used internally by ValueAccessor.
379 template<typename AccessorT>
380 const ValueType& getValueAndCache(const Coord& xyz, AccessorT&) const;
381
382 /// Return @c true if the voxel at the given coordinates is active and, if necessary,
383 /// update the accessor with pointers to the nodes along the path from the root node
384 /// to the node containing the voxel.
385 /// @note Used internally by ValueAccessor.
386 template<typename AccessorT>
387 bool isValueOnAndCache(const Coord& xyz, AccessorT&) const;
388
389 /// Change the value of the voxel at the given coordinates and mark it as active.
390 /// If necessary, update the accessor with pointers to the nodes along the path
391 /// from the root node to the node containing the voxel.
392 /// @note Used internally by ValueAccessor.
393 template<typename AccessorT>
394 void setValueAndCache(const Coord& xyz, const ValueType& value, AccessorT&);
395
396 /// Set the value of the voxel at the given coordinate but preserves its active state.
397 /// If necessary, update the accessor with pointers to the nodes along the path
398 /// from the root node to the node containing the voxel.
399 /// @note Used internally by ValueAccessor.
400 template<typename AccessorT>
401 void setValueOnlyAndCache(const Coord& xyz, const ValueType& value, AccessorT&);
402
403 /// @brief Apply a functor to the value of the voxel at the given coordinates
404 /// and mark the voxel as active.
405 /// If necessary, update the accessor with pointers to the nodes along the path
406 /// from the root node to the node containing the voxel.
407 /// @note Used internally by ValueAccessor.
408 template<typename ModifyOp, typename AccessorT>
409 void modifyValueAndCache(const Coord& xyz, const ModifyOp& op, AccessorT&);
410
411 /// Apply a functor to the voxel at the given coordinates.
412 /// If necessary, update the accessor with pointers to the nodes along the path
413 /// from the root node to the node containing the voxel.
414 /// @note Used internally by ValueAccessor.
415 template<typename ModifyOp, typename AccessorT>
416 void modifyValueAndActiveStateAndCache(const Coord& xyz, const ModifyOp& op, AccessorT&);
417
418 /// Change the value of the voxel at the given coordinates and mark it as inactive.
419 /// If necessary, update the accessor with pointers to the nodes along the path
420 /// from the root node to the node containing the voxel.
421 /// @note Used internally by ValueAccessor.
422 template<typename AccessorT>
423 void setValueOffAndCache(const Coord& xyz, const ValueType& value, AccessorT&);
424
425 /// Set the active state of the voxel at the given coordinates without changing its value.
426 /// If necessary, update the accessor with pointers to the nodes along the path
427 /// from the root node to the node containing the voxel.
428 /// @note Used internally by ValueAccessor.
429 template<typename AccessorT>
430 void setActiveStateAndCache(const Coord& xyz, bool on, AccessorT&);
431
432 /// Return, in @a value, the value of the voxel at the given coordinates and,
433 /// if necessary, update the accessor with pointers to the nodes along
434 /// the path from the root node to the node containing the voxel.
435 /// @return @c true if the voxel at the given coordinates is active
436 /// @note Used internally by ValueAccessor.
437 template<typename AccessorT>
438 bool probeValueAndCache(const Coord& xyz, ValueType& value, AccessorT&) const;
439
440 /// @brief Return the level of the tree (0 = leaf) at which the value
441 /// at the given coordinates resides.
442 ///
443 /// If necessary, update the accessor with pointers to the nodes along the path
444 /// from the root node to the node containing the voxel.
445 /// @note Used internally by ValueAccessor.
446 template<typename AccessorT>
447 Index getValueLevelAndCache(const Coord& xyz, AccessorT&) const;
448
449 /// Mark all values (both tiles and voxels) as active.
450 void setValuesOn();
451
452 //
453 // I/O
454 //
455 void writeTopology(std::ostream&, bool toHalf = false) const;
456 void readTopology(std::istream&, bool fromHalf = false);
457 void writeBuffers(std::ostream&, bool toHalf = false) const;
458 void readBuffers(std::istream&, bool fromHalf = false);
459 void readBuffers(std::istream&, const CoordBBox&, bool fromHalf = false);
460
461
462 //
463 // Aux methods
464 //
465
466 /// Change the sign of all the values represented in this node and its child nodes.
467 void negate();
468
469 /// @brief Set all voxels within a given axis-aligned box to a constant value.
470 /// @param bbox inclusive coordinates of opposite corners of an axis-aligned box
471 /// @param value the value to which to set voxels within the box
472 /// @param active if true, mark voxels within the box as active,
473 /// otherwise mark them as inactive
474 /// @note This operation generates a sparse, but not always optimally sparse,
475 /// representation of the filled box. Follow fill operations with a prune()
476 /// operation for optimal sparseness.
477 void fill(const CoordBBox& bbox, const ValueType& value, bool active = true);
478
479 /// @brief Set all voxels within a given axis-aligned box to a constant value
480 /// and ensure that those voxels are all represented at the leaf level.
481 /// @param bbox inclusive coordinates of opposite corners of an axis-aligned box.
482 /// @param value the value to which to set voxels within the box.
483 /// @param active if true, mark voxels within the box as active,
484 /// otherwise mark them as inactive.
485 /// @sa voxelizeActiveTiles()
486 void denseFill(const CoordBBox& bbox, const ValueType& value, bool active = true);
487
488 /// @brief Densify active tiles, i.e., replace them with leaf-level active voxels.
489 /// @param threaded if true, this operation is multi-threaded (over the internal nodes).
490 /// @sa denseFill()
491 void voxelizeActiveTiles(bool threaded = true);
492
493 /// @brief Copy into a dense grid the values of the voxels that lie within
494 /// a given bounding box.
495 /// @param bbox inclusive bounding box of the voxels to be copied into the dense grid
496 /// @param dense dense grid with a stride in @e z of one (see tools::Dense
497 /// in tools/Dense.h for the required API)
498 /// @note @a bbox is assumed to be identical to or contained in the coordinate domains
499 /// of both the dense grid and this node, i.e., no bounds checking is performed.
500 template<typename DenseT>
501 void copyToDense(const CoordBBox& bbox, DenseT& dense) const;
502
503 /// @brief Efficiently merge another tree into this tree using one of several schemes.
504 /// @warning This operation cannibalizes the other tree.
505 template<MergePolicy Policy>
506 void merge(InternalNode& other, const ValueType& background, const ValueType& otherBackground);
507
508 /// @brief Merge, using one of several schemes, this node (and its descendants)
509 /// with a tile of the same dimensions and the given value and active state.
510 template<MergePolicy Policy> void merge(const ValueType& tileValue, bool tileActive);
511
512 /// @brief Union this branch's set of active values with the other branch's
513 /// active values. The value type of the other branch can be different.
514 /// @details The resulting state of a value is active if the corresponding value
515 /// was already active OR if it is active in the other tree. Also, a resulting
516 /// value maps to a voxel if the corresponding value already mapped to a voxel
517 /// OR if it is a voxel in the other tree. Thus, a resulting value can only
518 /// map to a tile if the corresponding value already mapped to a tile
519 /// AND if it is a tile value in other tree.
520 ///
521 /// Specifically, active tiles and voxels in this branch are not changed, and
522 /// tiles or voxels that were inactive in this branch but active in the other branch
523 /// are marked as active in this branch but left with their original values.
524 template<typename OtherChildNodeType>
525 void topologyUnion(const InternalNode<OtherChildNodeType, Log2Dim>& other, const bool preserveTiles = false);
526
527 /// @brief Intersects this tree's set of active values with the active values
528 /// of the other tree, whose @c ValueType may be different.
529 /// @details The resulting state of a value is active only if the corresponding
530 /// value was already active AND if it is active in the other tree. Also, a
531 /// resulting value maps to a voxel if the corresponding value
532 /// already mapped to an active voxel in either of the two grids
533 /// and it maps to an active tile or voxel in the other grid.
534 ///
535 /// @note This operation can delete branches in this grid if they
536 /// overlap with inactive tiles in the other grid. Likewise active
537 /// voxels can be turned into inactive voxels resulting in leaf
538 /// nodes with no active values. Thus, it is recommended to
539 /// subsequently call prune.
540 template<typename OtherChildNodeType>
541 void topologyIntersection(const InternalNode<OtherChildNodeType, Log2Dim>& other,
542 const ValueType& background);
543
544 /// @brief Difference this node's set of active values with the active values
545 /// of the other node, whose @c ValueType may be different. So a
546 /// resulting voxel will be active only if the original voxel is
547 /// active in this node and inactive in the other node.
548 ///
549 /// @details The last dummy argument is required to match the signature
550 /// for InternalNode::topologyDifference.
551 ///
552 /// @note This operation modifies only active states, not
553 /// values. Also note that this operation can result in all voxels
554 /// being inactive so consider subsequently calling prune.
555 template<typename OtherChildNodeType>
556 void topologyDifference(const InternalNode<OtherChildNodeType, Log2Dim>& other,
557 const ValueType& background);
558
559 template<typename CombineOp>
560 void combine(InternalNode& other, CombineOp&);
561 template<typename CombineOp>
562 void combine(const ValueType& value, bool valueIsActive, CombineOp&);
563
564 template<typename CombineOp, typename OtherNodeType /*= InternalNode*/>
565 void combine2(const InternalNode& other0, const OtherNodeType& other1, CombineOp&);
566 template<typename CombineOp, typename OtherNodeType /*= InternalNode*/>
567 void combine2(const ValueType& value, const OtherNodeType& other, bool valIsActive, CombineOp&);
568 template<typename CombineOp, typename OtherValueType>
569 void combine2(const InternalNode& other, const OtherValueType&, bool valIsActive, CombineOp&);
570
571 /// @brief Calls the templated functor BBoxOp with bounding box
572 /// information for all active tiles and leaf nodes in this node.
573 /// An additional level argument is provided for each callback.
574 ///
575 /// @note The bounding boxes are guaranteed to be non-overlapping.
576 template<typename BBoxOp> void visitActiveBBox(BBoxOp&) const;
577
578 template<typename VisitorOp> void visit(VisitorOp&);
579 template<typename VisitorOp> void visit(VisitorOp&) const;
580
581 template<typename OtherNodeType, typename VisitorOp>
582 void visit2Node(OtherNodeType& other, VisitorOp&);
583 template<typename OtherNodeType, typename VisitorOp>
584 void visit2Node(OtherNodeType& other, VisitorOp&) const;
585 template<typename IterT, typename VisitorOp>
586 void visit2(IterT& otherIter, VisitorOp&, bool otherIsLHS = false);
587 template<typename IterT, typename VisitorOp>
588 void visit2(IterT& otherIter, VisitorOp&, bool otherIsLHS = false) const;
589
590 /// Set all voxels that lie outside the given axis-aligned box to the background.
591 void clip(const CoordBBox&, const ValueType& background);
592
593 /// @brief Reduce the memory footprint of this tree by replacing with tiles
594 /// any nodes whose values are all the same (optionally to within a tolerance)
595 /// and have the same active state.
596 void prune(const ValueType& tolerance = zeroVal<ValueType>());
597
598 /// @brief Add the specified leaf to this node, possibly creating a child branch
599 /// in the process. If the leaf node already exists, replace it.
600 void addLeaf(LeafNodeType* leaf);
601
602 /// @brief Same as addLeaf() except, if necessary, update the accessor with pointers
603 /// to the nodes along the path from the root node to the node containing the coordinate.
604 template<typename AccessorT>
605 void addLeafAndCache(LeafNodeType* leaf, AccessorT&);
606
607 /// @brief Return a pointer to the node of type @c NodeT that contains voxel (x, y, z)
608 /// and replace it with a tile of the specified value and state.
609 /// If no such node exists, leave the tree unchanged and return @c nullptr.
610 ///
611 /// @note The caller takes ownership of the node and is responsible for deleting it.
612 ///
613 /// @warning Since this method potentially removes nodes and branches of the tree,
614 /// it is important to clear the caches of all ValueAccessors associated with this tree.
615 template<typename NodeT>
616 NodeT* stealNode(const Coord& xyz, const ValueType& value, bool state);
617
618 /// @brief Add the given child node at this level deducing the offset from it's origin.
619 /// If a child node with this offset already exists, delete the old node and add the
620 /// new node in its place (i.e. ownership of the new child node is transferred to
621 /// this InternalNode)
622 /// @return @c true if inserting the child has been successful, otherwise the caller
623 /// retains ownership of the node and is responsible for deleting it.
624 bool addChild(ChildNodeType* child);
625
626 /// @brief Add a tile at the specified tree level that contains voxel (x, y, z),
627 /// possibly creating a parent branch or deleting a child branch in the process.
628 void addTile(Index level, const Coord& xyz, const ValueType& value, bool state);
629
630 /// @brief Delete any existing child branch at the specified offset and add a tile.
631 void addTile(Index offset, const ValueType& value, bool state);
632
633 /// @brief Same as addTile() except, if necessary, update the accessor with pointers
634 /// to the nodes along the path from the root node to the node containing (x, y, z).
635 template<typename AccessorT>
636 void addTileAndCache(Index level, const Coord& xyz, const ValueType&, bool state, AccessorT&);
637
638 //@{
639 /// @brief Return a pointer to the node that contains voxel (x, y, z).
640 /// If no such node exists, return nullptr.
641 template<typename NodeType> NodeType* probeNode(const Coord& xyz);
642 template<typename NodeType> const NodeType* probeConstNode(const Coord& xyz) const;
643 //@}
644
645 //@{
646 /// @brief Same as probeNode() except, if necessary, update the accessor with pointers
647 /// to the nodes along the path from the root node to the node containing (x, y, z).
648 template<typename NodeType, typename AccessorT>
649 NodeType* probeNodeAndCache(const Coord& xyz, AccessorT&);
650 template<typename NodeType, typename AccessorT>
651 const NodeType* probeConstNodeAndCache(const Coord& xyz, AccessorT&) const;
652 //@}
653
654 //@{
655 /// @brief Return a pointer to the leaf node that contains voxel (x, y, z).
656 /// If no such node exists, return @c nullptr.
657 LeafNodeType* probeLeaf(const Coord& xyz);
658 const LeafNodeType* probeConstLeaf(const Coord& xyz) const;
659 const LeafNodeType* probeLeaf(const Coord& xyz) const;
660 //@}
661
662 //@{
663 /// @brief Same as probeLeaf() except, if necessary, update the accessor with pointers
664 /// to the nodes along the path from the root node to the node containing (x, y, z).
665 template<typename AccessorT>
666 LeafNodeType* probeLeafAndCache(const Coord& xyz, AccessorT& acc);
667 template<typename AccessorT>
668 const LeafNodeType* probeConstLeafAndCache(const Coord& xyz, AccessorT& acc) const;
669 template<typename AccessorT>
670 const LeafNodeType* probeLeafAndCache(const Coord& xyz, AccessorT& acc) const;
671 //@}
672
673 /// @brief Return the leaf node that contains voxel (x, y, z).
674 /// If no such node exists, create one, but preserve the values and
675 /// active states of all voxels.
676 ///
677 /// @details Use this method to preallocate a static tree topology
678 /// over which to safely perform multithreaded processing.
679 LeafNodeType* touchLeaf(const Coord& xyz);
680
681 /// @brief Same as touchLeaf() except, if necessary, update the accessor with pointers
682 /// to the nodes along the path from the root node to the node containing the coordinate.
683 template<typename AccessorT>
684 LeafNodeType* touchLeafAndCache(const Coord& xyz, AccessorT&);
685
686 //@{
687 /// @brief Adds all nodes of a certain type to a container with the following API:
688 /// @code
689 /// struct ArrayT {
690 /// using value_type = ...;// defines the type of nodes to be added to the array
691 /// void push_back(value_type nodePtr);// method that add nodes to the array
692 /// };
693 /// @endcode
694 /// @details An example of a wrapper around a c-style array is:
695 /// @code
696 /// struct MyArray {
697 /// using value_type = LeafType*;
698 /// value_type* ptr;
699 /// MyArray(value_type* array) : ptr(array) {}
700 /// void push_back(value_type leaf) { *ptr++ = leaf; }
701 ///};
702 /// @endcode
703 /// @details An example that constructs a list of pointer to all leaf nodes is:
704 /// @code
705 /// std::vector<const LeafNodeType*> array;//most std contains have the required API
706 /// array.reserve(tree.leafCount());//this is a fast preallocation.
707 /// tree.getNodes(array);
708 /// @endcode
709 template<typename ArrayT>
710 void getNodes(ArrayT& array);
711 template<typename ArrayT>
712 void getNodes(ArrayT& array) const;
713 //@}
714
715 /// @brief Steals all nodes of a certain type from the tree and
716 /// adds them to a container with the following API:
717 /// @code
718 /// struct ArrayT {
719 /// using value_type = ...;// defines the type of nodes to be added to the array
720 /// void push_back(value_type nodePtr);// method that add nodes to the array
721 /// };
722 /// @endcode
723 /// @details An example of a wrapper around a c-style array is:
724 /// @code
725 /// struct MyArray {
726 /// using value_type = LeafType*;
727 /// value_type* ptr;
728 /// MyArray(value_type* array) : ptr(array) {}
729 /// void push_back(value_type leaf) { *ptr++ = leaf; }
730 ///};
731 /// @endcode
732 /// @details An example that constructs a list of pointer to all leaf nodes is:
733 /// @code
734 /// std::vector<const LeafNodeType*> array;//most std contains have the required API
735 /// array.reserve(tree.leafCount());//this is a fast preallocation.
736 /// tree.stealNodes(array);
737 /// @endcode
738 template<typename ArrayT>
739 void stealNodes(ArrayT& array, const ValueType& value, bool state);
740
741 /// @brief Change inactive tiles or voxels with value oldBackground to newBackground
742 /// or -oldBackground to -newBackground. Active values are unchanged.
743 void resetBackground(const ValueType& oldBackground, const ValueType& newBackground);
744
745 /// @brief Return @c true if the given tree branch has the same node and active value
746 /// topology as this tree branch (but possibly a different @c ValueType).
747 template<typename OtherChildNodeType, Index OtherLog2Dim>
748 bool hasSameTopology(const InternalNode<OtherChildNodeType, OtherLog2Dim>* other) const;
749
750protected:
751 //@{
752 /// Allow iterators to call mask accessor methods (setValueMask(), setChildMask(), etc.).
753 /// @todo Make mask accessors public?
754 friend class IteratorBase<MaskOnIterator, InternalNode>;
755 friend class IteratorBase<MaskOffIterator, InternalNode>;
756 friend class IteratorBase<MaskDenseIterator, InternalNode>;
757 //@}
758
759 /// @brief During topology-only construction, access is needed
760 /// to protected/private members of other template instances.
761 template<typename, Index> friend class InternalNode;
762
763 // Mask accessors
764public:
765 bool isValueMaskOn(Index n) const { return mValueMask.isOn(n); }
766 bool isValueMaskOn() const { return mValueMask.isOn(); }
767 bool isValueMaskOff(Index n) const { return mValueMask.isOff(n); }
768 bool isValueMaskOff() const { return mValueMask.isOff(); }
769 bool isChildMaskOn(Index n) const { return mChildMask.isOn(n); }
770 bool isChildMaskOff(Index n) const { return mChildMask.isOff(n); }
771 bool isChildMaskOff() const { return mChildMask.isOff(); }
772 const NodeMaskType& getValueMask() const { return mValueMask; }
773 const NodeMaskType& getChildMask() const { return mChildMask; }
774 NodeMaskType getValueOffMask() const
775 {
776 NodeMaskType mask = mValueMask;
777 mask |= mChildMask;
778 mask.toggle();
779 return mask;
780 }
781 const UnionType* getTable() const { return mNodes; }
782protected:
783 //@{
784 /// Use a mask accessor to ensure consistency between the child and value masks;
785 /// i.e., the value mask should always be off wherever the child mask is on.
786 void setValueMask(Index n, bool on) { mValueMask.set(n, mChildMask.isOn(n) ? false : on); }
787 //@}
788
789 void makeChildNodeEmpty(Index n, const ValueType& value);
790 void setChildNode( Index i, ChildNodeType* child);//assumes a tile
791 void resetChildNode(Index i, ChildNodeType* child);//checks for an existing child
792 ChildNodeType* unsetChildNode(Index i, const ValueType& value);
793
794 template<typename NodeT, typename VisitorOp, typename ChildAllIterT>
795 static inline void doVisit(NodeT&, VisitorOp&);
796
797 template<typename NodeT, typename OtherNodeT, typename VisitorOp,
798 typename ChildAllIterT, typename OtherChildAllIterT>
799 static inline void doVisit2Node(NodeT&, OtherNodeT&, VisitorOp&);
800
801 template<typename NodeT, typename VisitorOp,
802 typename ChildAllIterT, typename OtherChildAllIterT>
803 static inline void doVisit2(NodeT&, OtherChildAllIterT&, VisitorOp&, bool otherIsLHS);
804
805 ///@{
806 /// @brief Returns a pointer to the child node at the linear offset n.
807 /// @warning This protected method assumes that a child node exists at
808 /// the specified linear offset!
809 ChildNodeType* getChildNode(Index n);
810 const ChildNodeType* getChildNode(Index n) const;
811 ///@}
812
813 ///@{
814 /// @brief Protected member classes for recursive multi-threading
815 struct VoxelizeActiveTiles;
816 template<typename OtherInternalNode> struct DeepCopy;
817 template<typename OtherInternalNode> struct TopologyCopy1;
818 template<typename OtherInternalNode> struct TopologyCopy2;
819 template<typename OtherInternalNode> struct TopologyUnion;
820 template<typename OtherInternalNode> struct TopologyDifference;
821 template<typename OtherInternalNode> struct TopologyIntersection;
822 ///@}
823
824 UnionType mNodes[NUM_VALUES];
825 NodeMaskType mChildMask, mValueMask;
826 /// Global grid index coordinates (x,y,z) of the local origin of this node
827 Coord mOrigin;
828#if OPENVDB_ABI_VERSION_NUMBER >= 9
829 /// Transient data (not serialized)
830 Index32 mTransientData = 0;
831#endif
832}; // class InternalNode
833
834
835////////////////////////////////////////
836
837
838//@{
839/// Helper metafunction used to implement InternalNode::SameConfiguration
840/// (which, as an inner class, can't be independently specialized)
841template<typename ChildT1, Index Dim1, typename NodeT2>
842 struct SameInternalConfig {
843 static const bool value = false;
844};
845
846template<typename ChildT1, Index Dim1, typename ChildT2>
847 struct SameInternalConfig<ChildT1, Dim1, InternalNode<ChildT2, Dim1> > {
848 static const bool value = ChildT1::template SameConfiguration<ChildT2>::value;
849};
850//@}
851
852
853////////////////////////////////////////
854
855
856template<typename ChildT, Index Log2Dim>
857inline
858 InternalNode<ChildT, Log2Dim>::InternalNode(const ValueType& background)
859{
860 for (Index i = 0; i < NUM_VALUES; ++i) mNodes[i].setValue(background);
861}
862
863
864template<typename ChildT, Index Log2Dim>
865inline
866 InternalNode<ChildT, Log2Dim>::InternalNode(const Coord& origin, const ValueType& val, bool active):
867 mOrigin(origin[0] & ~(DIM - 1), // zero out the low-order bits
868 origin[1] & ~(DIM - 1),
869 origin[2] & ~(DIM - 1))
870{
871 if (active) mValueMask.setOn();
872 for (Index i = 0; i < NUM_VALUES; ++i) mNodes[i].setValue(val);
873}
874
875
876// For InternalNodes, the PartialCreate constructor is identical to its
877// non-PartialCreate counterpart.
878template<typename ChildT, Index Log2Dim>
879inline
880 InternalNode<ChildT, Log2Dim>::InternalNode(PartialCreate,
881 const Coord& origin, const ValueType& val, bool active)
882 : mOrigin(origin[0] & ~(DIM-1), origin[1] & ~(DIM-1), origin[2] & ~(DIM-1))
883{
884 if (active) mValueMask.setOn();
885 for (Index i = 0; i < NUM_VALUES; ++i) mNodes[i].setValue(val);
886}
887
888template<typename ChildT, Index Log2Dim>
889template<typename OtherInternalNode>
890 struct InternalNode<ChildT, Log2Dim>::DeepCopy
891{
892 DeepCopy(const OtherInternalNode* source, InternalNode* target) : s(source), t(target) {
893 tbb::parallel_for(tbb::blocked_range<Index>(0, NUM_VALUES), *this);
894 //(*this)(tbb::blocked_range<Index>(0, NUM_VALUES));//serial
895 }
896 void operator()(const tbb::blocked_range<Index> &r) const {
897 for (Index i = r.begin(), end=r.end(); i!=end; ++i) {
898 if (s->mChildMask.isOff(i)) {
899 t->mNodes[i].setValue(ValueType(s->mNodes[i].getValue()));
900 } else {
901 t->mNodes[i].setChild(new ChildNodeType(*(s->mNodes[i].getChild())));
902 }
903 }
904 }
905 const OtherInternalNode* s;
906 InternalNode* t;
907};// DeepCopy
908
909template<typename ChildT, Index Log2Dim>
910inline
911 InternalNode<ChildT, Log2Dim>::InternalNode(const InternalNode& other)
912 : mChildMask(other.mChildMask)
913 , mValueMask(other.mValueMask)
914 , mOrigin(other.mOrigin)
915#if OPENVDB_ABI_VERSION_NUMBER >= 9
916 , mTransientData(other.mTransientData)
917#endif
918{
919 DeepCopy<InternalNode<ChildT, Log2Dim> > tmp(&other, this);
920}
921
922
923// Copy-construct from a node with the same configuration but a different ValueType.
924template<typename ChildT, Index Log2Dim>
925template<typename OtherChildNodeType>
926inline
927 InternalNode<ChildT, Log2Dim>::InternalNode(const InternalNode<OtherChildNodeType, Log2Dim>& other)
928 : mChildMask(other.mChildMask)
929 , mValueMask(other.mValueMask)
930 , mOrigin(other.mOrigin)
931#if OPENVDB_ABI_VERSION_NUMBER >= 9
932 , mTransientData(other.mTransientData)
933#endif
934{
935 DeepCopy<InternalNode<OtherChildNodeType, Log2Dim> > tmp(&other, this);
936}
937
938template<typename ChildT, Index Log2Dim>
939template<typename OtherInternalNode>
940 struct InternalNode<ChildT, Log2Dim>::TopologyCopy1
941{
942 TopologyCopy1(const OtherInternalNode* source, InternalNode* target,
943 const ValueType& background) : s(source), t(target), b(background) {
944 tbb::parallel_for(tbb::blocked_range<Index>(0, NUM_VALUES), *this);
945 //(*this)(tbb::blocked_range<Index>(0, NUM_VALUES));//serial
946 }
947 void operator()(const tbb::blocked_range<Index> &r) const {
948 for (Index i = r.begin(), end=r.end(); i!=end; ++i) {
949 if (s->isChildMaskOn(i)) {
950 t->mNodes[i].setChild(new ChildNodeType(*(s->mNodes[i].getChild()),
951 b, TopologyCopy()));
952 } else {
953 t->mNodes[i].setValue(b);
954 }
955 }
956 }
957 const OtherInternalNode* s;
958 InternalNode* t;
959 const ValueType &b;
960};// TopologyCopy1
961
962template<typename ChildT, Index Log2Dim>
963template<typename OtherChildNodeType>
964inline
965 InternalNode<ChildT, Log2Dim>::InternalNode(const InternalNode<OtherChildNodeType, Log2Dim>& other,
966 const ValueType& background, TopologyCopy)
967 : mChildMask(other.mChildMask)
968 , mValueMask(other.mValueMask)
969 , mOrigin(other.mOrigin)
970#if OPENVDB_ABI_VERSION_NUMBER >= 9
971 , mTransientData(other.mTransientData)
972#endif
973{
974 TopologyCopy1<InternalNode<OtherChildNodeType, Log2Dim> > tmp(&other, this, background);
975}
976
977template<typename ChildT, Index Log2Dim>
978template<typename OtherInternalNode>
979 struct InternalNode<ChildT, Log2Dim>::TopologyCopy2
980{
981 TopologyCopy2(const OtherInternalNode* source, InternalNode* target,
982 const ValueType& offValue, const ValueType& onValue)
983 : s(source), t(target), offV(offValue), onV(onValue) {
984 tbb::parallel_for(tbb::blocked_range<Index>(0, NUM_VALUES), *this);
985 }
986 void operator()(const tbb::blocked_range<Index> &r) const {
987 for (Index i = r.begin(), end=r.end(); i!=end; ++i) {
988 if (s->isChildMaskOn(i)) {
989 t->mNodes[i].setChild(new ChildNodeType(*(s->mNodes[i].getChild()),
990 offV, onV, TopologyCopy()));
991 } else {
992 t->mNodes[i].setValue(s->isValueMaskOn(i) ? onV : offV);
993 }
994 }
995 }
996 const OtherInternalNode* s;
997 InternalNode* t;
998 const ValueType &offV, &onV;
999 };// TopologyCopy2
1000
1001template<typename ChildT, Index Log2Dim>
1002template<typename OtherChildNodeType>
1003inline
1004 InternalNode<ChildT, Log2Dim>::InternalNode(const InternalNode<OtherChildNodeType, Log2Dim>& other,
1005 const ValueType& offValue,
1006 const ValueType& onValue, TopologyCopy)
1007 : mChildMask(other.mChildMask)
1008 , mValueMask(other.mValueMask)
1009 , mOrigin(other.mOrigin)
1010#if OPENVDB_ABI_VERSION_NUMBER >= 9
1011 , mTransientData(other.mTransientData)
1012#endif
1013{
1014 TopologyCopy2<InternalNode<OtherChildNodeType, Log2Dim> > tmp(&other, this, offValue, onValue);
1015}
1016
1017
1018template<typename ChildT, Index Log2Dim>
1019inline
1020InternalNode<ChildT, Log2Dim>::~InternalNode()
1021{
1022 for (ChildOnIter iter = this->beginChildOn(); iter; ++iter) {
1023 delete mNodes[iter.pos()].getChild();
1024 }
1025}
1026
1027
1028////////////////////////////////////////
1029
1030
1031template<typename ChildT, Index Log2Dim>
1032inline Index32
1033InternalNode<ChildT, Log2Dim>::leafCount() const
1034{
1035 if (ChildNodeType::getLevel() == 0) return mChildMask.countOn();
1036 Index32 sum = 0;
1037 for (ChildOnCIter iter = this->cbeginChildOn(); iter; ++iter) {
1038 sum += iter->leafCount();
1039 }
1040 return sum;
1041}
1042
1043template<typename ChildT, Index Log2Dim>
1044inline void
1045InternalNode<ChildT, Log2Dim>::nodeCount(std::vector<Index32> &vec) const
1046{
1047 assert(vec.size() > ChildNodeType::LEVEL);
1048 const auto count = mChildMask.countOn();
1049 if (ChildNodeType::LEVEL > 0 && count > 0) {
1050 for (auto iter = this->cbeginChildOn(); iter; ++iter) iter->nodeCount(vec);
1051 }
1052 vec[ChildNodeType::LEVEL] += count;
1053}
1054
1055
1056template<typename ChildT, Index Log2Dim>
1057inline Index32
1058InternalNode<ChildT, Log2Dim>::nonLeafCount() const
1059{
1060 Index32 sum = 1;
1061 if (ChildNodeType::getLevel() == 0) return sum;
1062 for (ChildOnCIter iter = this->cbeginChildOn(); iter; ++iter) {
1063 sum += iter->nonLeafCount();
1064 }
1065 return sum;
1066}
1067
1068
1069template<typename ChildT, Index Log2Dim>
1070inline Index32
1071InternalNode<ChildT, Log2Dim>::childCount() const
1072{
1073 return this->getChildMask().countOn();
1074}
1075
1076
1077template<typename ChildT, Index Log2Dim>
1078inline Index64
1079InternalNode<ChildT, Log2Dim>::onVoxelCount() const
1080{
1081 Index64 sum = ChildT::NUM_VOXELS * mValueMask.countOn();
1082 for (ChildOnCIter iter = this->cbeginChildOn(); iter; ++iter) {
1083 sum += iter->onVoxelCount();
1084 }
1085 return sum;
1086}
1087
1088
1089template<typename ChildT, Index Log2Dim>
1090inline Index64
1091InternalNode<ChildT, Log2Dim>::offVoxelCount() const
1092{
1093 Index64 sum = ChildT::NUM_VOXELS * (NUM_VALUES-mValueMask.countOn()-mChildMask.countOn());
1094 for (ChildOnCIter iter = this->cbeginChildOn(); iter; ++iter) {
1095 sum += iter->offVoxelCount();
1096 }
1097 return sum;
1098}
1099
1100
1101template<typename ChildT, Index Log2Dim>
1102inline Index64
1103InternalNode<ChildT, Log2Dim>::onLeafVoxelCount() const
1104{
1105 Index64 sum = 0;
1106 for (ChildOnCIter iter = this->beginChildOn(); iter; ++iter) {
1107 sum += mNodes[iter.pos()].getChild()->onLeafVoxelCount();
1108 }
1109 return sum;
1110}
1111
1112
1113template<typename ChildT, Index Log2Dim>
1114inline Index64
1115InternalNode<ChildT, Log2Dim>::offLeafVoxelCount() const
1116{
1117 Index64 sum = 0;
1118 for (ChildOnCIter iter = this->beginChildOn(); iter; ++iter) {
1119 sum += mNodes[iter.pos()].getChild()->offLeafVoxelCount();
1120 }
1121 return sum;
1122}
1123
1124template<typename ChildT, Index Log2Dim>
1125inline Index64
1126InternalNode<ChildT, Log2Dim>::onTileCount() const
1127{
1128 Index64 sum = mValueMask.countOn();
1129 for (ChildOnCIter iter = this->cbeginChildOn(); LEVEL>1 && iter; ++iter) {
1130 sum += iter->onTileCount();
1131 }
1132 return sum;
1133}
1134
1135template<typename ChildT, Index Log2Dim>
1136inline Index64
1137InternalNode<ChildT, Log2Dim>::memUsage() const
1138{
1139 Index64 sum = NUM_VALUES * sizeof(UnionType) + mChildMask.memUsage()
1140 + mValueMask.memUsage() + sizeof(mOrigin);
1141 for (ChildOnCIter iter = this->cbeginChildOn(); iter; ++iter) {
1142 sum += iter->memUsage();
1143 }
1144 return sum;
1145}
1146
1147
1148template<typename ChildT, Index Log2Dim>
1149inline void
1150InternalNode<ChildT, Log2Dim>::evalActiveBoundingBox(CoordBBox& bbox, bool visitVoxels) const
1151{
1152 if (bbox.isInside(this->getNodeBoundingBox())) return;
1153
1154 for (ValueOnCIter i = this->cbeginValueOn(); i; ++i) {
1155 bbox.expand(i.getCoord(), ChildT::DIM);
1156 }
1157 for (ChildOnCIter i = this->cbeginChildOn(); i; ++i) {
1158 i->evalActiveBoundingBox(bbox, visitVoxels);
1159 }
1160}
1161
1162
1163////////////////////////////////////////
1164
1165
1166template<typename ChildT, Index Log2Dim>
1167inline void
1168InternalNode<ChildT, Log2Dim>::prune(const ValueType& tolerance)
1169{
1170 bool state = false;
1171 ValueType value = zeroVal<ValueType>();
1172 for (ChildOnIter iter = this->beginChildOn(); iter; ++iter) {
1173 const Index i = iter.pos();
1174 ChildT* child = mNodes[i].getChild();
1175 child->prune(tolerance);
1176 if (child->isConstant(value, state, tolerance)) {
1177 delete child;
1178 mChildMask.setOff(i);
1179 mValueMask.set(i, state);
1180 mNodes[i].setValue(value);
1181 }
1182 }
1183}
1184
1185
1186////////////////////////////////////////
1187
1188
1189template<typename ChildT, Index Log2Dim>
1190template<typename NodeT>
1191inline NodeT*
1192InternalNode<ChildT, Log2Dim>::stealNode(const Coord& xyz, const ValueType& value, bool state)
1193{
1194 if ((NodeT::LEVEL == ChildT::LEVEL && !(std::is_same<NodeT, ChildT>::value)) ||
1195 NodeT::LEVEL > ChildT::LEVEL) return nullptr;
1196 OPENVDB_NO_UNREACHABLE_CODE_WARNING_BEGIN
1197 const Index n = this->coordToOffset(xyz);
1198 if (mChildMask.isOff(n)) return nullptr;
1199 ChildT* child = mNodes[n].getChild();
1200 if (std::is_same<NodeT, ChildT>::value) {
1201 mChildMask.setOff(n);
1202 mValueMask.set(n, state);
1203 mNodes[n].setValue(value);
1204 }
1205 return (std::is_same<NodeT, ChildT>::value)
1206 ? reinterpret_cast<NodeT*>(child)
1207 : child->template stealNode<NodeT>(xyz, value, state);
1208 OPENVDB_NO_UNREACHABLE_CODE_WARNING_END
1209}
1210
1211
1212////////////////////////////////////////
1213
1214
1215template<typename ChildT, Index Log2Dim>
1216template<typename NodeT>
1217inline NodeT*
1218 InternalNode<ChildT, Log2Dim>::probeNode(const Coord& xyz)
1219{
1220 if ((NodeT::LEVEL == ChildT::LEVEL && !(std::is_same<NodeT, ChildT>::value)) ||
1221 NodeT::LEVEL > ChildT::LEVEL) return nullptr;
1222 OPENVDB_NO_UNREACHABLE_CODE_WARNING_BEGIN
1223 const Index n = this->coordToOffset(xyz);
1224 if (mChildMask.isOff(n)) return nullptr;
1225 ChildT* child = mNodes[n].getChild();
1226 return (std::is_same<NodeT, ChildT>::value)
1227 ? reinterpret_cast<NodeT*>(child)
1228 : child->template probeNode<NodeT>(xyz);
1229 OPENVDB_NO_UNREACHABLE_CODE_WARNING_END
1230}
1231
1232
1233template<typename ChildT, Index Log2Dim>
1234template<typename NodeT, typename AccessorT>
1235inline NodeT*
1236 InternalNode<ChildT, Log2Dim>::probeNodeAndCache(const Coord& xyz, AccessorT& acc)
1237{
1238 if ((NodeT::LEVEL == ChildT::LEVEL && !(std::is_same<NodeT, ChildT>::value)) ||
1239 NodeT::LEVEL > ChildT::LEVEL) return nullptr;
1240 OPENVDB_NO_UNREACHABLE_CODE_WARNING_BEGIN
1241 const Index n = this->coordToOffset(xyz);
1242 if (mChildMask.isOff(n)) return nullptr;
1243 ChildT* child = mNodes[n].getChild();
1244 acc.insert(xyz, child);
1245 return (std::is_same<NodeT, ChildT>::value)
1246 ? reinterpret_cast<NodeT*>(child)
1247 : child->template probeNodeAndCache<NodeT>(xyz, acc);
1248 OPENVDB_NO_UNREACHABLE_CODE_WARNING_END
1249}
1250
1251
1252template<typename ChildT, Index Log2Dim>
1253template<typename NodeT>
1254inline const NodeT*
1255 InternalNode<ChildT, Log2Dim>::probeConstNode(const Coord& xyz) const
1256{
1257 if ((NodeT::LEVEL == ChildT::LEVEL && !(std::is_same<NodeT, ChildT>::value)) ||
1258 NodeT::LEVEL > ChildT::LEVEL) return nullptr;
1259 OPENVDB_NO_UNREACHABLE_CODE_WARNING_BEGIN
1260 const Index n = this->coordToOffset(xyz);
1261 if (mChildMask.isOff(n)) return nullptr;
1262 const ChildT* child = mNodes[n].getChild();
1263 return (std::is_same<NodeT, ChildT>::value)
1264 ? reinterpret_cast<const NodeT*>(child)
1265 : child->template probeConstNode<NodeT>(xyz);
1266 OPENVDB_NO_UNREACHABLE_CODE_WARNING_END
1267}
1268
1269
1270template<typename ChildT, Index Log2Dim>
1271template<typename NodeT, typename AccessorT>
1272inline const NodeT*
1273 InternalNode<ChildT, Log2Dim>::probeConstNodeAndCache(const Coord& xyz, AccessorT& acc) const
1274{
1275 if ((NodeT::LEVEL == ChildT::LEVEL && !(std::is_same<NodeT, ChildT>::value)) ||
1276 NodeT::LEVEL > ChildT::LEVEL) return nullptr;
1277 OPENVDB_NO_UNREACHABLE_CODE_WARNING_BEGIN
1278 const Index n = this->coordToOffset(xyz);
1279 if (mChildMask.isOff(n)) return nullptr;
1280 const ChildT* child = mNodes[n].getChild();
1281 acc.insert(xyz, child);
1282 return (std::is_same<NodeT, ChildT>::value)
1283 ? reinterpret_cast<const NodeT*>(child)
1284 : child->template probeConstNodeAndCache<NodeT>(xyz, acc);
1285 OPENVDB_NO_UNREACHABLE_CODE_WARNING_END
1286}
1287
1288
1289////////////////////////////////////////
1290
1291
1292template<typename ChildT, Index Log2Dim>
1293inline typename ChildT::LeafNodeType*
1294InternalNode<ChildT, Log2Dim>::probeLeaf(const Coord& xyz)
1295{
1296 return this->template probeNode<LeafNodeType>(xyz);
1297}
1298
1299
1300template<typename ChildT, Index Log2Dim>
1301template<typename AccessorT>
1302inline typename ChildT::LeafNodeType*
1303 InternalNode<ChildT, Log2Dim>::probeLeafAndCache(const Coord& xyz, AccessorT& acc)
1304{
1305 return this->template probeNodeAndCache<LeafNodeType>(xyz, acc);
1306}
1307
1308
1309template<typename ChildT, Index Log2Dim>
1310template<typename AccessorT>
1311inline const typename ChildT::LeafNodeType*
1312 InternalNode<ChildT, Log2Dim>::probeLeafAndCache(const Coord& xyz, AccessorT& acc) const
1313{
1314 return this->probeConstLeafAndCache(xyz, acc);
1315}
1316
1317
1318template<typename ChildT, Index Log2Dim>
1319inline const typename ChildT::LeafNodeType*
1320InternalNode<ChildT, Log2Dim>::probeConstLeaf(const Coord& xyz) const
1321{
1322 return this->template probeConstNode<LeafNodeType>(xyz);
1323}
1324
1325
1326template<typename ChildT, Index Log2Dim>
1327template<typename AccessorT>
1328inline const typename ChildT::LeafNodeType*
1329 InternalNode<ChildT, Log2Dim>::probeConstLeafAndCache(const Coord& xyz, AccessorT& acc) const
1330{
1331 return this->template probeConstNodeAndCache<LeafNodeType>(xyz, acc);
1332}
1333
1334
1335////////////////////////////////////////
1336
1337
1338template<typename ChildT, Index Log2Dim>
1339inline void
1340InternalNode<ChildT, Log2Dim>::addLeaf(LeafNodeType* leaf)
1341{
1342 assert(leaf != nullptr);
1343 const Coord& xyz = leaf->origin();
1344 const Index n = this->coordToOffset(xyz);
1345 ChildT* child = nullptr;
1346 if (mChildMask.isOff(n)) {
1347 if (ChildT::LEVEL>0) {
1348 child = new ChildT(xyz, mNodes[n].getValue(), mValueMask.isOn(n));
1349 } else {
1350 child = reinterpret_cast<ChildT*>(leaf);
1351 }
1352 this->setChildNode(n, child);
1353 } else {
1354 if (ChildT::LEVEL>0) {
1355 child = mNodes[n].getChild();
1356 } else {
1357 delete mNodes[n].getChild();
1358 child = reinterpret_cast<ChildT*>(leaf);
1359 mNodes[n].setChild(child);
1360 }
1361 }
1362 child->addLeaf(leaf);
1363}
1364
1365
1366template<typename ChildT, Index Log2Dim>
1367template<typename AccessorT>
1368inline void
1369InternalNode<ChildT, Log2Dim>::addLeafAndCache(LeafNodeType* leaf, AccessorT& acc)
1370{
1371 assert(leaf != nullptr);
1372 const Coord& xyz = leaf->origin();
1373 const Index n = this->coordToOffset(xyz);
1374 ChildT* child = nullptr;
1375 if (mChildMask.isOff(n)) {
1376 if (ChildT::LEVEL>0) {
1377 child = new ChildT(xyz, mNodes[n].getValue(), mValueMask.isOn(n));
1378 acc.insert(xyz, child);//we only cache internal nodes
1379 } else {
1380 child = reinterpret_cast<ChildT*>(leaf);
1381 }
1382 this->setChildNode(n, child);
1383 } else {
1384 if (ChildT::LEVEL>0) {
1385 child = mNodes[n].getChild();
1386 acc.insert(xyz, child);//we only cache internal nodes
1387 } else {
1388 delete mNodes[n].getChild();
1389 child = reinterpret_cast<ChildT*>(leaf);
1390 mNodes[n].setChild(child);
1391 }
1392 }
1393 child->addLeafAndCache(leaf, acc);
1394}
1395
1396
1397////////////////////////////////////////
1398
1399
1400template<typename ChildT, Index Log2Dim>
1401inline bool
1402InternalNode<ChildT, Log2Dim>::addChild(ChildT* child)
1403{
1404 assert(child);
1405 const Coord& xyz = child->origin();
1406 // verify that the child belongs in this internal node
1407 if (Coord((xyz & ~(DIM-1))) != this->origin()) return false;
1408 // compute the offset and insert the child node
1409 const Index n = this->coordToOffset(xyz);
1410 // this also deletes an existing child node
1411 this->resetChildNode(n, child);
1412 return true;
1413}
1414
1415
1416template<typename ChildT, Index Log2Dim>
1417inline void
1418 InternalNode<ChildT, Log2Dim>::addTile(Index n, const ValueType& value, bool state)
1419{
1420 assert(n < NUM_VALUES);
1421 this->makeChildNodeEmpty(n, value);
1422 mValueMask.set(n, state);
1423}
1424
1425
1426template<typename ChildT, Index Log2Dim>
1427inline void
1428InternalNode<ChildT, Log2Dim>::addTile(Index level, const Coord& xyz,
1429 const ValueType& value, bool state)
1430{
1431 if (LEVEL >= level) {
1432 const Index n = this->coordToOffset(xyz);
1433 if (mChildMask.isOff(n)) {// tile case
1434 if (LEVEL > level) {
1435 ChildT* child = new ChildT(xyz, mNodes[n].getValue(), mValueMask.isOn(n));
1436 this->setChildNode(n, child);
1437 child->addTile(level, xyz, value, state);
1438 } else {
1439 mValueMask.set(n, state);
1440 mNodes[n].setValue(value);
1441 }
1442 } else {// child branch case
1443 ChildT* child = mNodes[n].getChild();
1444 if (LEVEL > level) {
1445 child->addTile(level, xyz, value, state);
1446 } else {
1447 delete child;
1448 mChildMask.setOff(n);
1449 mValueMask.set(n, state);
1450 mNodes[n].setValue(value);
1451 }
1452 }
1453 }
1454}
1455
1456
1457template<typename ChildT, Index Log2Dim>
1458template<typename AccessorT>
1459inline void
1460InternalNode<ChildT, Log2Dim>::addTileAndCache(Index level, const Coord& xyz,
1461 const ValueType& value, bool state, AccessorT& acc)
1462{
1463 if (LEVEL >= level) {
1464 const Index n = this->coordToOffset(xyz);
1465 if (mChildMask.isOff(n)) {// tile case
1466 if (LEVEL > level) {
1467 ChildT* child = new ChildT(xyz, mNodes[n].getValue(), mValueMask.isOn(n));
1468 this->setChildNode(n, child);
1469 acc.insert(xyz, child);
1470 child->addTileAndCache(level, xyz, value, state, acc);
1471 } else {
1472 mValueMask.set(n, state);
1473 mNodes[n].setValue(value);
1474 }
1475 } else {// child branch case
1476 ChildT* child = mNodes[n].getChild();
1477 if (LEVEL > level) {
1478 acc.insert(xyz, child);
1479 child->addTileAndCache(level, xyz, value, state, acc);
1480 } else {
1481 delete child;
1482 mChildMask.setOff(n);
1483 mValueMask.set(n, state);
1484 mNodes[n].setValue(value);
1485 }
1486 }
1487 }
1488}
1489
1490
1491////////////////////////////////////////
1492
1493
1494template<typename ChildT, Index Log2Dim>
1495inline typename ChildT::LeafNodeType*
1496InternalNode<ChildT, Log2Dim>::touchLeaf(const Coord& xyz)
1497{
1498 const Index n = this->coordToOffset(xyz);
1499 ChildT* child = nullptr;
1500 if (mChildMask.isOff(n)) {
1501 child = new ChildT(xyz, mNodes[n].getValue(), mValueMask.isOn(n));
1502 this->setChildNode(n, child);
1503 } else {
1504 child = mNodes[n].getChild();
1505 }
1506 return child->touchLeaf(xyz);
1507}
1508
1509
1510template<typename ChildT, Index Log2Dim>
1511template<typename AccessorT>
1512inline typename ChildT::LeafNodeType*
1513 InternalNode<ChildT, Log2Dim>::touchLeafAndCache(const Coord& xyz, AccessorT& acc)
1514{
1515 const Index n = this->coordToOffset(xyz);
1516 if (mChildMask.isOff(n)) {
1517 this->setChildNode(n, new ChildNodeType(xyz, mNodes[n].getValue(), mValueMask.isOn(n)));
1518 }
1519 acc.insert(xyz, mNodes[n].getChild());
1520 return mNodes[n].getChild()->touchLeafAndCache(xyz, acc);
1521}
1522
1523
1524////////////////////////////////////////
1525
1526
1527template<typename ChildT, Index Log2Dim>
1528inline bool
1529InternalNode<ChildT, Log2Dim>::isConstant(ValueType& firstValue, bool& state,
1530 const ValueType& tolerance) const
1531{
1532 if (!mChildMask.isOff() || !mValueMask.isConstant(state)) return false;// early termination
1533
1534 firstValue = mNodes[0].getValue();
1535 for (Index i = 1; i < NUM_VALUES; ++i) {
1536 if (!math::isApproxEqual(mNodes[i].getValue(), firstValue, tolerance)) {
1537 return false; // early termination
1538 }
1539 }
1540 return true;
1541}
1542
1543
1544////////////////////////////////////////
1545
1546
1547template<typename ChildT, Index Log2Dim>
1548inline bool
1549 InternalNode<ChildT, Log2Dim>::isConstant(ValueType& minValue,
1550 ValueType& maxValue,
1551 bool& state,
1552 const ValueType& tolerance) const
1553{
1554
1555 if (!mChildMask.isOff() || !mValueMask.isConstant(state)) return false;// early termination
1556 minValue = maxValue = mNodes[0].getValue();
1557 for (Index i = 1; i < NUM_VALUES; ++i) {
1558 const ValueType& v = mNodes[i].getValue();
1559 if (v < minValue) {
1560 if ((maxValue - v) > tolerance) return false;// early termination
1561 minValue = v;
1562 } else if (v > maxValue) {
1563 if ((v - minValue) > tolerance) return false;// early termination
1564 maxValue = v;
1565 }
1566 }
1567 return true;
1568}
1569
1570
1571////////////////////////////////////////
1572
1573
1574template<typename ChildT, Index Log2Dim>
1575inline bool
1576InternalNode<ChildT, Log2Dim>::hasActiveTiles() const
1577{
1578 OPENVDB_NO_UNREACHABLE_CODE_WARNING_BEGIN
1579 const bool anyActiveTiles = !mValueMask.isOff();
1580 if (LEVEL==1 || anyActiveTiles) return anyActiveTiles;
1581 for (ChildOnCIter iter = this->cbeginChildOn(); iter; ++iter) {
1582 if (iter->hasActiveTiles()) return true;
1583 }
1584 return false;
1585 OPENVDB_NO_UNREACHABLE_CODE_WARNING_END
1586}
1587
1588
1589template<typename ChildT, Index Log2Dim>
1590inline bool
1591InternalNode<ChildT, Log2Dim>::isValueOn(const Coord& xyz) const
1592{
1593 const Index n = this->coordToOffset(xyz);
1594 if (this->isChildMaskOff(n)) return this->isValueMaskOn(n);
1595 return mNodes[n].getChild()->isValueOn(xyz);
1596}
1597
1598template<typename ChildT, Index Log2Dim>
1599template<typename AccessorT>
1600inline bool
1601InternalNode<ChildT, Log2Dim>::isValueOnAndCache(const Coord& xyz, AccessorT& acc) const
1602{
1603 const Index n = this->coordToOffset(xyz);
1604 if (this->isChildMaskOff(n)) return this->isValueMaskOn(n);
1605 acc.insert(xyz, mNodes[n].getChild());
1606 return mNodes[n].getChild()->isValueOnAndCache(xyz, acc);
1607}
1608
1609
1610template<typename ChildT, Index Log2Dim>
1611inline const typename ChildT::ValueType&
1612InternalNode<ChildT, Log2Dim>::getValue(const Coord& xyz) const
1613{
1614 const Index n = this->coordToOffset(xyz);
1615 return this->isChildMaskOff(n) ? mNodes[n].getValue()
1616 : mNodes[n].getChild()->getValue(xyz);
1617}
1618
1619template<typename ChildT, Index Log2Dim>
1620template<typename AccessorT>
1621inline const typename ChildT::ValueType&
1622 InternalNode<ChildT, Log2Dim>::getValueAndCache(const Coord& xyz, AccessorT& acc) const
1623{
1624 const Index n = this->coordToOffset(xyz);
1625 if (this->isChildMaskOn(n)) {
1626 acc.insert(xyz, mNodes[n].getChild());
1627 return mNodes[n].getChild()->getValueAndCache(xyz, acc);
1628 }
1629 return mNodes[n].getValue();
1630}
1631
1632
1633template<typename ChildT, Index Log2Dim>
1634inline Index
1635InternalNode<ChildT, Log2Dim>::getValueLevel(const Coord& xyz) const
1636{
1637 const Index n = this->coordToOffset(xyz);
1638 return this->isChildMaskOff(n) ? LEVEL : mNodes[n].getChild()->getValueLevel(xyz);
1639}
1640
1641template<typename ChildT, Index Log2Dim>
1642template<typename AccessorT>
1643inline Index
1644InternalNode<ChildT, Log2Dim>::getValueLevelAndCache(const Coord& xyz, AccessorT& acc) const
1645{
1646 const Index n = this->coordToOffset(xyz);
1647 if (this->isChildMaskOn(n)) {
1648 acc.insert(xyz, mNodes[n].getChild());
1649 return mNodes[n].getChild()->getValueLevelAndCache(xyz, acc);
1650 }
1651 return LEVEL;
1652}
1653
1654
1655template<typename ChildT, Index Log2Dim>
1656inline bool
1657InternalNode<ChildT, Log2Dim>::probeValue(const Coord& xyz, ValueType& value) const
1658{
1659 const Index n = this->coordToOffset(xyz);
1660 if (this->isChildMaskOff(n)) {
1661 value = mNodes[n].getValue();
1662 return this->isValueMaskOn(n);
1663 }
1664 return mNodes[n].getChild()->probeValue(xyz, value);
1665}
1666
1667template<typename ChildT, Index Log2Dim>
1668template<typename AccessorT>
1669inline bool
1670InternalNode<ChildT, Log2Dim>::probeValueAndCache(const Coord& xyz,
1671 ValueType& value, AccessorT& acc) const
1672{
1673 const Index n = this->coordToOffset(xyz);
1674 if (this->isChildMaskOn(n)) {
1675 acc.insert(xyz, mNodes[n].getChild());
1676 return mNodes[n].getChild()->probeValueAndCache(xyz, value, acc);
1677 }
1678 value = mNodes[n].getValue();
1679 return this->isValueMaskOn(n);
1680}
1681
1682
1683template<typename ChildT, Index Log2Dim>
1684inline void
1685InternalNode<ChildT, Log2Dim>::setValueOff(const Coord& xyz)
1686{
1687 const Index n = this->coordToOffset(xyz);
1688 bool hasChild = this->isChildMaskOn(n);
1689 if (!hasChild && this->isValueMaskOn(n)) {
1690 // If the voxel belongs to a constant tile that is active,
1691 // a child subtree must be constructed.
1692 hasChild = true;
1693 this->setChildNode(n, new ChildNodeType(xyz, mNodes[n].getValue(), /*active=*/true));
1694 }
1695 if (hasChild) mNodes[n].getChild()->setValueOff(xyz);
1696}
1697
1698
1699template<typename ChildT, Index Log2Dim>
1700inline void
1701InternalNode<ChildT, Log2Dim>::setValueOn(const Coord& xyz)
1702{
1703 const Index n = this->coordToOffset(xyz);
1704 bool hasChild = this->isChildMaskOn(n);
1705 if (!hasChild && !this->isValueMaskOn(n)) {
1706 // If the voxel belongs to a constant tile that is inactive,
1707 // a child subtree must be constructed.
1708 hasChild = true;
1709 this->setChildNode(n, new ChildNodeType(xyz, mNodes[n].getValue(), /*active=*/false));
1710 }
1711 if (hasChild) mNodes[n].getChild()->setValueOn(xyz);
1712}
1713
1714
1715template<typename ChildT, Index Log2Dim>
1716inline void
1717 InternalNode<ChildT, Log2Dim>::setValueOff(const Coord& xyz, const ValueType& value)
1718{
1719 const Index n = InternalNode::coordToOffset(xyz);
1720 bool hasChild = this->isChildMaskOn(n);
1721 if (!hasChild) {
1722 const bool active = this->isValueMaskOn(n);
1723 if (active || !math::isExactlyEqual(mNodes[n].getValue(), value)) {
1724 // If the voxel belongs to a tile that is either active or that
1725 // has a constant value that is different from the one provided,
1726 // a child subtree must be constructed.
1727 hasChild = true;
1728 this->setChildNode(n, new ChildNodeType(xyz, mNodes[n].getValue(), active));
1729 }
1730 }
1731 if (hasChild) mNodes[n].getChild()->setValueOff(xyz, value);
1732}
1733
1734template<typename ChildT, Index Log2Dim>
1735template<typename AccessorT>
1736inline void
1737InternalNode<ChildT, Log2Dim>::setValueOffAndCache(const Coord& xyz,
1738 const ValueType& value, AccessorT& acc)
1739{
1740 const Index n = InternalNode::coordToOffset(xyz);
1741 bool hasChild = this->isChildMaskOn(n);
1742 if (!hasChild) {
1743 const bool active = this->isValueMaskOn(n);
1744 if (active || !math::isExactlyEqual(mNodes[n].getValue(), value)) {
1745 // If the voxel belongs to a tile that is either active or that
1746 // has a constant value that is different from the one provided,
1747 // a child subtree must be constructed.
1748 hasChild = true;
1749 this->setChildNode(n, new ChildNodeType(xyz, mNodes[n].getValue(), active));
1750 }
1751 }
1752 if (hasChild) {
1753 ChildT* child = mNodes[n].getChild();
1754 acc.insert(xyz, child);
1755 child->setValueOffAndCache(xyz, value, acc);
1756 }
1757}
1758
1759
1760template<typename ChildT, Index Log2Dim>
1761inline void
1762 InternalNode<ChildT, Log2Dim>::setValueOn(const Coord& xyz, const ValueType& value)
1763{
1764 const Index n = this->coordToOffset(xyz);
1765 bool hasChild = this->isChildMaskOn(n);
1766 if (!hasChild) {
1767 const bool active = this->isValueMaskOn(n); // tile's active state
1768 if (!active || !math::isExactlyEqual(mNodes[n].getValue(), value)) {
1769 // If the voxel belongs to a tile that is either inactive or that
1770 // has a constant value that is different from the one provided,
1771 // a child subtree must be constructed.
1772 hasChild = true;
1773 this->setChildNode(n, new ChildNodeType(xyz, mNodes[n].getValue(), active));
1774 }
1775 }
1776 if (hasChild) mNodes[n].getChild()->setValueOn(xyz, value);
1777}
1778
1779template<typename ChildT, Index Log2Dim>
1780template<typename AccessorT>
1781inline void
1782InternalNode<ChildT, Log2Dim>::setValueAndCache(const Coord& xyz,
1783 const ValueType& value, AccessorT& acc)
1784{
1785 const Index n = this->coordToOffset(xyz);
1786 bool hasChild = this->isChildMaskOn(n);
1787 if (!hasChild) {
1788 const bool active = this->isValueMaskOn(n);
1789 if (!active || !math::isExactlyEqual(mNodes[n].getValue(), value)) {
1790 // If the voxel belongs to a tile that is either inactive or that
1791 // has a constant value that is different from the one provided,
1792 // a child subtree must be constructed.
1793 hasChild = true;
1794 this->setChildNode(n, new ChildNodeType(xyz, mNodes[n].getValue(), active));
1795 }
1796 }
1797 if (hasChild) {
1798 acc.insert(xyz, mNodes[n].getChild());
1799 mNodes[n].getChild()->setValueAndCache(xyz, value, acc);
1800 }
1801}
1802
1803
1804template<typename ChildT, Index Log2Dim>
1805inline void
1806InternalNode<ChildT, Log2Dim>::setValueOnly(const Coord& xyz, const ValueType& value)
1807{
1808 const Index n = this->coordToOffset(xyz);
1809 bool hasChild = this->isChildMaskOn(n);
1810 if (!hasChild && !math::isExactlyEqual(mNodes[n].getValue(), value)) {
1811 // If the voxel has a tile value that is different from the one provided,
1812 // a child subtree must be constructed.
1813 const bool active = this->isValueMaskOn(n);
1814 hasChild = true;
1815 this->setChildNode(n, new ChildNodeType(xyz, mNodes[n].getValue(), active));
1816 }
1817 if (hasChild) mNodes[n].getChild()->setValueOnly(xyz, value);
1818}
1819
1820template<typename ChildT, Index Log2Dim>
1821template<typename AccessorT>
1822inline void
1823InternalNode<ChildT, Log2Dim>::setValueOnlyAndCache(const Coord& xyz,
1824 const ValueType& value, AccessorT& acc)
1825{
1826 const Index n = this->coordToOffset(xyz);
1827 bool hasChild = this->isChildMaskOn(n);
1828 if (!hasChild && !math::isExactlyEqual(mNodes[n].getValue(), value)) {
1829 // If the voxel has a tile value that is different from the one provided,
1830 // a child subtree must be constructed.
1831 const bool active = this->isValueMaskOn(n);
1832 hasChild = true;
1833 this->setChildNode(n, new ChildNodeType(xyz, mNodes[n].getValue(), active));
1834 }
1835 if (hasChild) {
1836 acc.insert(xyz, mNodes[n].getChild());
1837 mNodes[n].getChild()->setValueOnlyAndCache(xyz, value, acc);
1838 }
1839}
1840
1841
1842template<typename ChildT, Index Log2Dim>
1843inline void
1844InternalNode<ChildT, Log2Dim>::setActiveState(const Coord& xyz, bool on)
1845{
1846 const Index n = this->coordToOffset(xyz);
1847 bool hasChild = this->isChildMaskOn(n);
1848 if (!hasChild) {
1849 if (on != this->isValueMaskOn(n)) {
1850 // If the voxel belongs to a tile with the wrong active state,
1851 // then a child subtree must be constructed.
1852 // 'on' is the voxel's new state, therefore '!on' is the tile's current state
1853 hasChild = true;
1854 this->setChildNode(n, new ChildNodeType(xyz, mNodes[n].getValue(), !on));
1855 }
1856 }
1857 if (hasChild) mNodes[n].getChild()->setActiveState(xyz, on);
1858}
1859
1860template<typename ChildT, Index Log2Dim>
1861template<typename AccessorT>
1862inline void
1863InternalNode<ChildT, Log2Dim>::setActiveStateAndCache(const Coord& xyz, bool on, AccessorT& acc)
1864{
1865 const Index n = this->coordToOffset(xyz);
1866 bool hasChild = this->isChildMaskOn(n);
1867 if (!hasChild) {
1868 if (on != this->isValueMaskOn(n)) {
1869 // If the voxel belongs to a tile with the wrong active state,
1870 // then a child subtree must be constructed.
1871 // 'on' is the voxel's new state, therefore '!on' is the tile's current state
1872 hasChild = true;
1873 this->setChildNode(n, new ChildNodeType(xyz, mNodes[n].getValue(), !on));
1874 }
1875 }
1876 if (hasChild) {
1877 ChildT* child = mNodes[n].getChild();
1878 acc.insert(xyz, child);
1879 child->setActiveStateAndCache(xyz, on, acc);
1880 }
1881}
1882
1883
1884template<typename ChildT, Index Log2Dim>
1885inline void
1886InternalNode<ChildT, Log2Dim>::setValuesOn()
1887{
1888 mValueMask = !mChildMask;
1889 for (ChildOnIter iter = this->beginChildOn(); iter; ++iter) {
1890 mNodes[iter.pos()].getChild()->setValuesOn();
1891 }
1892}
1893
1894
1895template<typename ChildT, Index Log2Dim>
1896template<typename ModifyOp>
1897inline void
1898InternalNode<ChildT, Log2Dim>::modifyValue(const Coord& xyz, const ModifyOp& op)
1899{
1900 const Index n = InternalNode::coordToOffset(xyz);
1901 bool hasChild = this->isChildMaskOn(n);
1902 if (!hasChild) {
1903 // Need to create a child if the tile is inactive,
1904 // in order to activate voxel (x, y, z).
1905 const bool active = this->isValueMaskOn(n);
1906 bool createChild = !active;
1907 if (!createChild) {
1908 // Need to create a child if applying the functor
1909 // to the tile value produces a different value.
1910 const ValueType& tileVal = mNodes[n].getValue();
1911 ValueType modifiedVal = tileVal;
1912 op(modifiedVal);
1913 createChild = !math::isExactlyEqual(tileVal, modifiedVal);
1914 }
1915 if (createChild) {
1916 hasChild = true;
1917 this->setChildNode(n, new ChildNodeType(xyz, mNodes[n].getValue(), active));
1918 }
1919 }
1920 if (hasChild) mNodes[n].getChild()->modifyValue(xyz, op);
1921}
1922
1923template<typename ChildT, Index Log2Dim>
1924template<typename ModifyOp, typename AccessorT>
1925inline void
1926InternalNode<ChildT, Log2Dim>::modifyValueAndCache(const Coord& xyz, const ModifyOp& op,
1927 AccessorT& acc)
1928{
1929 const Index n = InternalNode::coordToOffset(xyz);
1930 bool hasChild = this->isChildMaskOn(n);
1931 if (!hasChild) {
1932 // Need to create a child if the tile is inactive,
1933 // in order to activate voxel (x, y, z).
1934 const bool active = this->isValueMaskOn(n);
1935 bool createChild = !active;
1936 if (!createChild) {
1937 // Need to create a child if applying the functor
1938 // to the tile value produces a different value.
1939 const ValueType& tileVal = mNodes[n].getValue();
1940 ValueType modifiedVal = tileVal;
1941 op(modifiedVal);
1942 createChild = !math::isExactlyEqual(tileVal, modifiedVal);
1943 }
1944 if (createChild) {
1945 hasChild = true;
1946 this->setChildNode(n, new ChildNodeType(xyz, mNodes[n].getValue(), active));
1947 }
1948 }
1949 if (hasChild) {
1950 ChildNodeType* child = mNodes[n].getChild();
1951 acc.insert(xyz, child);
1952 child->modifyValueAndCache(xyz, op, acc);
1953 }
1954}
1955
1956
1957template<typename ChildT, Index Log2Dim>
1958template<typename ModifyOp>
1959inline void
1960InternalNode<ChildT, Log2Dim>::modifyValueAndActiveState(const Coord& xyz, const ModifyOp& op)
1961{
1962 const Index n = InternalNode::coordToOffset(xyz);
1963 bool hasChild = this->isChildMaskOn(n);
1964 if (!hasChild) {
1965 const bool tileState = this->isValueMaskOn(n);
1966 const ValueType& tileVal = mNodes[n].getValue();
1967 bool modifiedState = !tileState;
1968 ValueType modifiedVal = tileVal;
1969 op(modifiedVal, modifiedState);
1970 // Need to create a child if applying the functor to the tile
1971 // produces a different value or active state.
1972 if (modifiedState != tileState || !math::isExactlyEqual(modifiedVal, tileVal)) {
1973 hasChild = true;
1974 this->setChildNode(n, new ChildNodeType(xyz, tileVal, tileState));
1975 }
1976 }
1977 if (hasChild) mNodes[n].getChild()->modifyValueAndActiveState(xyz, op);
1978}
1979
1980template<typename ChildT, Index Log2Dim>
1981template<typename ModifyOp, typename AccessorT>
1982inline void
1983InternalNode<ChildT, Log2Dim>::modifyValueAndActiveStateAndCache(
1984 const Coord& xyz, const ModifyOp& op, AccessorT& acc)
1985{
1986 const Index n = InternalNode::coordToOffset(xyz);
1987 bool hasChild = this->isChildMaskOn(n);
1988 if (!hasChild) {
1989 const bool tileState = this->isValueMaskOn(n);
1990 const ValueType& tileVal = mNodes[n].getValue();
1991 bool modifiedState = !tileState;
1992 ValueType modifiedVal = tileVal;
1993 op(modifiedVal, modifiedState);
1994 // Need to create a child if applying the functor to the tile
1995 // produces a different value or active state.
1996 if (modifiedState != tileState || !math::isExactlyEqual(modifiedVal, tileVal)) {
1997 hasChild = true;
1998 this->setChildNode(n, new ChildNodeType(xyz, tileVal, tileState));
1999 }
2000 }
2001 if (hasChild) {
2002 ChildNodeType* child = mNodes[n].getChild();
2003 acc.insert(xyz, child);
2004 child->modifyValueAndActiveStateAndCache(xyz, op, acc);
2005 }
2006}
2007
2008
2009////////////////////////////////////////
2010
2011
2012template<typename ChildT, Index Log2Dim>
2013inline void
2014InternalNode<ChildT, Log2Dim>::clip(const CoordBBox& clipBBox, const ValueType& background)
2015{
2016 CoordBBox nodeBBox = this->getNodeBoundingBox();
2017 if (!clipBBox.hasOverlap(nodeBBox)) {
2018 // This node lies completely outside the clipping region. Fill it with background tiles.
2019 this->fill(nodeBBox, background, /*active=*/false);
2020 } else if (clipBBox.isInside(nodeBBox)) {
2021 // This node lies completely inside the clipping region. Leave it intact.
2022 return;
2023 }
2024
2025 // This node isn't completely contained inside the clipping region.
2026 // Clip tiles and children, and replace any that lie outside the region
2027 // with background tiles.
2028
2029 for (Index pos = 0; pos < NUM_VALUES; ++pos) {
2030 const Coord xyz = this->offsetToGlobalCoord(pos); // tile or child origin
2031 CoordBBox tileBBox(xyz, xyz.offsetBy(ChildT::DIM - 1)); // tile or child bounds
2032 if (!clipBBox.hasOverlap(tileBBox)) {
2033 // This table entry lies completely outside the clipping region.
2034 // Replace it with a background tile.
2035 this->makeChildNodeEmpty(pos, background);
2036 mValueMask.setOff(pos);
2037 } else if (!clipBBox.isInside(tileBBox)) {
2038 // This table entry does not lie completely inside the clipping region
2039 // and must be clipped.
2040 if (this->isChildMaskOn(pos)) {
2041 mNodes[pos].getChild()->clip(clipBBox, background);
2042 } else {
2043 // Replace this tile with a background tile, then fill the clip region
2044 // with the tile's original value. (This might create a child branch.)
2045 tileBBox.intersect(clipBBox);
2046 const ValueType val = mNodes[pos].getValue();
2047 const bool on = this->isValueMaskOn(pos);
2048 mNodes[pos].setValue(background);
2049 mValueMask.setOff(pos);
2050 this->fill(tileBBox, val, on);
2051 }
2052 } else {
2053 // This table entry lies completely inside the clipping region. Leave it intact.
2054 }
2055 }
2056}
2057
2058
2059////////////////////////////////////////
2060
2061
2062template<typename ChildT, Index Log2Dim>
2063inline void
2064InternalNode<ChildT, Log2Dim>::fill(const CoordBBox& bbox, const ValueType& value, bool active)
2065{
2066 auto clippedBBox = this->getNodeBoundingBox();
2067 clippedBBox.intersect(bbox);
2068 if (!clippedBBox) return;
2069
2070 // Iterate over the fill region in axis-aligned, tile-sized chunks.
2071 // (The first and last chunks along each axis might be smaller than a tile.)
2072 Coord xyz, tileMin, tileMax;
2073 for (int x = clippedBBox.min().x(); x <= clippedBBox.max().x(); x = tileMax.x() + 1) {
2074 xyz.setX(x);
2075 for (int y = clippedBBox.min().y(); y <= clippedBBox.max().y(); y = tileMax.y() + 1) {
2076 xyz.setY(y);
2077 for (int z = clippedBBox.min().z(); z <= clippedBBox.max().z(); z = tileMax.z() + 1) {
2078 xyz.setZ(z);
2079
2080 // Get the bounds of the tile that contains voxel (x, y, z).
2081 const Index n = this->coordToOffset(xyz);
2082 tileMin = this->offsetToGlobalCoord(n);
2083 tileMax = tileMin.offsetBy(ChildT::DIM - 1);
2084
2085 if (xyz != tileMin || Coord::lessThan(clippedBBox.max(), tileMax)) {
2086 // If the box defined by (xyz, clippedBBox.max()) doesn't completely enclose
2087 // the tile to which xyz belongs, create a child node (or retrieve
2088 // the existing one).
2089 ChildT* child = nullptr;
2090 if (this->isChildMaskOff(n)) {
2091 // Replace the tile with a newly-created child that is initialized
2092 // with the tile's value and active state.
2093 child = new ChildT{xyz, mNodes[n].getValue(), this->isValueMaskOn(n)};
2094 this->setChildNode(n, child);
2095 } else {
2096 child = mNodes[n].getChild();
2097 }
2098
2099 // Forward the fill request to the child.
2100 if (child) {
2101 const Coord tmp = Coord::minComponent(clippedBBox.max(), tileMax);
2102 child->fill(CoordBBox(xyz, tmp), value, active);
2103 }
2104
2105 } else {
2106 // If the box given by (xyz, clippedBBox.max()) completely encloses
2107 // the tile to which xyz belongs, create the tile (if it
2108 // doesn't already exist) and give it the fill value.
2109 this->makeChildNodeEmpty(n, value);
2110 mValueMask.set(n, active);
2111 }
2112 }
2113 }
2114 }
2115}
2116
2117
2118template<typename ChildT, Index Log2Dim>
2119inline void
2120InternalNode<ChildT, Log2Dim>::denseFill(const CoordBBox& bbox, const ValueType& value, bool active)
2121{
2122 auto clippedBBox = this->getNodeBoundingBox();
2123 clippedBBox.intersect(bbox);
2124 if (!clippedBBox) return;
2125
2126 // Iterate over the fill region in axis-aligned, tile-sized chunks.
2127 // (The first and last chunks along each axis might be smaller than a tile.)
2128 Coord xyz, tileMin, tileMax;
2129 for (int x = clippedBBox.min().x(); x <= clippedBBox.max().x(); x = tileMax.x() + 1) {
2130 xyz.setX(x);
2131 for (int y = clippedBBox.min().y(); y <= clippedBBox.max().y(); y = tileMax.y() + 1) {
2132 xyz.setY(y);
2133 for (int z = clippedBBox.min().z(); z <= clippedBBox.max().z(); z = tileMax.z() + 1) {
2134 xyz.setZ(z);
2135
2136 // Get the table index of the tile that contains voxel (x, y, z).
2137 const auto n = this->coordToOffset(xyz);
2138
2139 // Retrieve the child node at index n, or replace the tile at index n with a child.
2140 ChildT* child = nullptr;
2141 if (this->isChildMaskOn(n)) {
2142 child = mNodes[n].getChild();
2143 } else {
2144 // Replace the tile with a newly-created child that is filled
2145 // with the tile's value and active state.
2146 child = new ChildT{xyz, mNodes[n].getValue(), this->isValueMaskOn(n)};
2147 this->setChildNode(n, child);
2148 }
2149
2150 // Get the bounds of the tile that contains voxel (x, y, z).
2151 tileMin = this->offsetToGlobalCoord(n);
2152 tileMax = tileMin.offsetBy(ChildT::DIM - 1);
2153
2154 // Forward the fill request to the child.
2155 child->denseFill(CoordBBox{xyz, clippedBBox.max()}, value, active);
2156 }
2157 }
2158 }
2159}
2160
2161
2162////////////////////////////////////////
2163
2164
2165template<typename ChildT, Index Log2Dim>
2166template<typename DenseT>
2167inline void
2168InternalNode<ChildT, Log2Dim>::copyToDense(const CoordBBox& bbox, DenseT& dense) const
2169{
2170 using DenseValueType = typename DenseT::ValueType;
2171
2172 const size_t xStride = dense.xStride(), yStride = dense.yStride(), zStride = dense.zStride();
2173 const Coord& min = dense.bbox().min();
2174 for (Coord xyz = bbox.min(), max; xyz[0] <= bbox.max()[0]; xyz[0] = max[0] + 1) {
2175 for (xyz[1] = bbox.min()[1]; xyz[1] <= bbox.max()[1]; xyz[1] = max[1] + 1) {
2176 for (xyz[2] = bbox.min()[2]; xyz[2] <= bbox.max()[2]; xyz[2] = max[2] + 1) {
2177 const Index n = this->coordToOffset(xyz);
2178 // Get max coordinates of the child node that contains voxel xyz.
2179 max = this->offsetToGlobalCoord(n).offsetBy(ChildT::DIM-1);
2180
2181 // Get the bbox of the interection of bbox and the child node
2182 CoordBBox sub(xyz, Coord::minComponent(bbox.max(), max));
2183
2184 if (this->isChildMaskOn(n)) {//is a child
2185 mNodes[n].getChild()->copyToDense(sub, dense);
2186 } else {//a tile value
2187 const ValueType value = mNodes[n].getValue();
2188 sub.translate(-min);
2189 DenseValueType* a0 = dense.data() + zStride*sub.min()[2];
2190 for (Int32 x=sub.min()[0], ex=sub.max()[0]+1; x<ex; ++x) {
2191 DenseValueType* a1 = a0 + x*xStride;
2192 for (Int32 y=sub.min()[1], ey=sub.max()[1]+1; y<ey; ++y) {
2193 DenseValueType* a2 = a1 + y*yStride;
2194 for (Int32 z = sub.min()[2], ez = sub.max()[2]+1;
2195 z < ez; ++z, a2 += zStride)
2196 {
2197 *a2 = DenseValueType(value);
2198 }
2199 }
2200 }
2201 }
2202 }
2203 }
2204 }
2205}
2206
2207
2208////////////////////////////////////////
2209
2210
2211template<typename ChildT, Index Log2Dim>
2212inline void
2213InternalNode<ChildT, Log2Dim>::writeTopology(std::ostream& os, bool toHalf) const
2214{
2215 mChildMask.save(os);
2216 mValueMask.save(os);
2217
2218 {
2219 // Copy all of this node's values into an array.
2220 std::unique_ptr<ValueType[]> valuePtr(new ValueType[NUM_VALUES]);
2221 ValueType* values = valuePtr.get();
2222 const ValueType zero = zeroVal<ValueType>();
2223 for (Index i = 0; i < NUM_VALUES; ++i) {
2224 values[i] = (mChildMask.isOff(i) ? mNodes[i].getValue() : zero);
2225 }
2226 // Compress (optionally) and write out the contents of the array.
2227 io::writeCompressedValues(os, values, NUM_VALUES, mValueMask, mChildMask, toHalf);
2228 }
2229 // Write out the child nodes in order.
2230 for (ChildOnCIter iter = this->cbeginChildOn(); iter; ++iter) {
2231 iter->writeTopology(os, toHalf);
2232 }
2233}
2234
2235
2236template<typename ChildT, Index Log2Dim>
2237inline void
2238InternalNode<ChildT, Log2Dim>::readTopology(std::istream& is, bool fromHalf)
2239{
2240 const ValueType background = (!io::getGridBackgroundValuePtr(is) ? zeroVal<ValueType>()
2241 : *static_cast<const ValueType*>(io::getGridBackgroundValuePtr(is)));
2242
2243 mChildMask.load(is);
2244 mValueMask.load(is);
2245
2246 if (io::getFormatVersion(is) < OPENVDB_FILE_VERSION_INTERNALNODE_COMPRESSION) {
2247 for (Index i = 0; i < NUM_VALUES; ++i) {
2248 if (this->isChildMaskOn(i)) {
2249 ChildNodeType* child =
2250 new ChildNodeType(PartialCreate(), offsetToGlobalCoord(i), background);
2251 mNodes[i].setChild(child);
2252 child->readTopology(is);
2253 } else {
2254 ValueType value;
2255 is.read(reinterpret_cast<char*>(&value), sizeof(ValueType));
2256 mNodes[i].setValue(value);
2257 }
2258 }
2259 } else {
2260 const bool oldVersion =
2261 (io::getFormatVersion(is) < OPENVDB_FILE_VERSION_NODE_MASK_COMPRESSION);
2262 const Index numValues = (oldVersion ? mChildMask.countOff() : NUM_VALUES);
2263 {
2264 // Read in (and uncompress, if necessary) all of this node's values
2265 // into a contiguous array.
2266 std::unique_ptr<ValueType[]> valuePtr(new ValueType[numValues]);
2267 ValueType* values = valuePtr.get();
2268 io::readCompressedValues(is, values, numValues, mValueMask, fromHalf);
2269
2270 // Copy values from the array into this node's table.
2271 if (oldVersion) {
2272 Index n = 0;
2273 for (ValueAllIter iter = this->beginValueAll(); iter; ++iter) {
2274 mNodes[iter.pos()].setValue(values[n++]);
2275 }
2276 assert(n == numValues);
2277 } else {
2278 for (ValueAllIter iter = this->beginValueAll(); iter; ++iter) {
2279 mNodes[iter.pos()].setValue(values[iter.pos()]);
2280 }
2281 }
2282 }
2283 // Read in all child nodes and insert them into the table at their proper locations.
2284 for (ChildOnIter iter = this->beginChildOn(); iter; ++iter) {
2285 ChildNodeType* child = new ChildNodeType(PartialCreate(), iter.getCoord(), background);
2286 mNodes[iter.pos()].setChild(child);
2287 child->readTopology(is, fromHalf);
2288 }
2289 }
2290}
2291
2292
2293////////////////////////////////////////
2294
2295
2296template<typename ChildT, Index Log2Dim>
2297inline const typename ChildT::ValueType&
2298InternalNode<ChildT, Log2Dim>::getFirstValue() const
2299{
2300 return (this->isChildMaskOn(0) ? mNodes[0].getChild()->getFirstValue() : mNodes[0].getValue());
2301}
2302
2303
2304template<typename ChildT, Index Log2Dim>
2305inline const typename ChildT::ValueType&
2306InternalNode<ChildT, Log2Dim>::getLastValue() const
2307{
2308 const Index n = NUM_VALUES - 1;
2309 return (this->isChildMaskOn(n) ? mNodes[n].getChild()->getLastValue() : mNodes[n].getValue());
2310}
2311
2312
2313////////////////////////////////////////
2314
2315
2316template<typename ChildT, Index Log2Dim>
2317inline void
2318InternalNode<ChildT, Log2Dim>::negate()
2319{
2320 for (Index i = 0; i < NUM_VALUES; ++i) {
2321 if (this->isChildMaskOn(i)) {
2322 mNodes[i].getChild()->negate();
2323 } else {
2324 mNodes[i].setValue(math::negative(mNodes[i].getValue()));
2325 }
2326 }
2327
2328}
2329
2330
2331////////////////////////////////////////
2332
2333
2334template<typename ChildT, Index Log2Dim>
2335 struct InternalNode<ChildT, Log2Dim>::VoxelizeActiveTiles
2336{
2337 VoxelizeActiveTiles(InternalNode &node) : mNode(&node) {
2338 //(*this)(tbb::blocked_range<Index>(0, NUM_VALUES));//single thread for debugging
2339 tbb::parallel_for(tbb::blocked_range<Index>(0, NUM_VALUES), *this);
2340
2341 node.mChildMask |= node.mValueMask;
2342 node.mValueMask.setOff();
2343 }
2344 void operator()(const tbb::blocked_range<Index> &r) const
2345 {
2346 for (Index i = r.begin(), end=r.end(); i!=end; ++i) {
2347 if (mNode->mChildMask.isOn(i)) {// Loop over node's child nodes
2348 mNode->mNodes[i].getChild()->voxelizeActiveTiles(true);
2349 } else if (mNode->mValueMask.isOn(i)) {// Loop over node's active tiles
2350 const Coord &ijk = mNode->offsetToGlobalCoord(i);
2351 ChildNodeType *child = new ChildNodeType(ijk, mNode->mNodes[i].getValue(), true);
2352 child->voxelizeActiveTiles(true);
2353 mNode->mNodes[i].setChild(child);
2354 }
2355 }
2356 }
2357 InternalNode* mNode;
2358};// VoxelizeActiveTiles
2359
2360template<typename ChildT, Index Log2Dim>
2361inline void
2362InternalNode<ChildT, Log2Dim>::voxelizeActiveTiles(bool threaded)
2363{
2364 if (threaded) {
2365 VoxelizeActiveTiles tmp(*this);
2366 } else {
2367 for (ValueOnIter iter = this->beginValueOn(); iter; ++iter) {
2368 this->setChildNode(iter.pos(),
2369 new ChildNodeType(iter.getCoord(), iter.getValue(), true));
2370 }
2371 for (ChildOnIter iter = this->beginChildOn(); iter; ++iter)
2372 iter->voxelizeActiveTiles(false);
2373 }
2374}
2375
2376
2377////////////////////////////////////////
2378
2379
2380template<typename ChildT, Index Log2Dim>
2381template<MergePolicy Policy>
2382inline void
2383InternalNode<ChildT, Log2Dim>::merge(InternalNode& other,
2384 const ValueType& background, const ValueType& otherBackground)
2385{
2386 OPENVDB_NO_UNREACHABLE_CODE_WARNING_BEGIN
2387
2388 switch (Policy) {
2389
2390 case MERGE_ACTIVE_STATES:
2391 default:
2392 {
2393 for (ChildOnIter iter = other.beginChildOn(); iter; ++iter) {
2394 const Index n = iter.pos();
2395 if (mChildMask.isOn(n)) {
2396 // Merge this node's child with the other node's child.
2397 mNodes[n].getChild()->template merge<MERGE_ACTIVE_STATES>(*iter,
2398 background, otherBackground);
2399 } else if (mValueMask.isOff(n)) {
2400 // Replace this node's inactive tile with the other node's child
2401 // and replace the other node's child with a tile of undefined value
2402 // (which is okay since the other tree is assumed to be cannibalized
2403 // in the process of merging).
2404 ChildNodeType* child = other.mNodes[n].getChild();
2405 other.mChildMask.setOff(n);
2406 child->resetBackground(otherBackground, background);
2407 this->setChildNode(n, child);
2408 }
2409 }
2410
2411 // Copy active tile values.
2412 for (ValueOnCIter iter = other.cbeginValueOn(); iter; ++iter) {
2413 const Index n = iter.pos();
2414 if (mValueMask.isOff(n)) {
2415 // Replace this node's child or inactive tile with the other node's active tile.
2416 this->makeChildNodeEmpty(n, iter.getValue());
2417 mValueMask.setOn(n);
2418 }
2419 }
2420 break;
2421 }
2422
2423 case MERGE_NODES:
2424 {
2425 for (ChildOnIter iter = other.beginChildOn(); iter; ++iter) {
2426 const Index n = iter.pos();
2427 if (mChildMask.isOn(n)) {
2428 // Merge this node's child with the other node's child.
2429 mNodes[n].getChild()->template merge<Policy>(*iter, background, otherBackground);
2430 } else {
2431 // Replace this node's tile (regardless of its active state) with
2432 // the other node's child and replace the other node's child with
2433 // a tile of undefined value (which is okay since the other tree
2434 // is assumed to be cannibalized in the process of merging).
2435 ChildNodeType* child = other.mNodes[n].getChild();
2436 other.mChildMask.setOff(n);
2437 child->resetBackground(otherBackground, background);
2438 this->setChildNode(n, child);
2439 }
2440 }
2441 break;
2442 }
2443
2444 case MERGE_ACTIVE_STATES_AND_NODES:
2445 {
2446 // Transfer children from the other tree to this tree.
2447 for (ChildOnIter iter = other.beginChildOn(); iter; ++iter) {
2448 const Index n = iter.pos();
2449 if (mChildMask.isOn(n)) {
2450 // Merge this node's child with the other node's child.
2451 mNodes[n].getChild()->template merge<Policy>(*iter, background, otherBackground);
2452 } else {
2453 // Replace this node's tile with the other node's child, leaving the other
2454 // node with an inactive tile of undefined value (which is okay since
2455 // the other tree is assumed to be cannibalized in the process of merging).
2456 ChildNodeType* child = other.mNodes[n].getChild();
2457 other.mChildMask.setOff(n);
2458 child->resetBackground(otherBackground, background);
2459 if (mValueMask.isOn(n)) {
2460 // Merge the child with this node's active tile.
2461 child->template merge<Policy>(mNodes[n].getValue(), /*on=*/true);
2462 mValueMask.setOff(n);
2463 }
2464 mChildMask.setOn(n);
2465 mNodes[n].setChild(child);
2466 }
2467 }
2468
2469 // Merge active tiles into this tree.
2470 for (ValueOnCIter iter = other.cbeginValueOn(); iter; ++iter) {
2471 const Index n = iter.pos();
2472 if (mChildMask.isOn(n)) {
2473 // Merge the other node's active tile into this node's child.
2474 mNodes[n].getChild()->template merge<Policy>(iter.getValue(), /*on=*/true);
2475 } else if (mValueMask.isOff(n)) {
2476 // Replace this node's inactive tile with the other node's active tile.
2477 mNodes[n].setValue(iter.getValue());
2478 mValueMask.setOn(n);
2479 }
2480 }
2481 break;
2482 }
2483
2484 }
2485 OPENVDB_NO_UNREACHABLE_CODE_WARNING_END
2486}
2487
2488
2489template<typename ChildT, Index Log2Dim>
2490template<MergePolicy Policy>
2491inline void
2492 InternalNode<ChildT, Log2Dim>::merge(const ValueType& tileValue, bool tileActive)
2493{
2494 OPENVDB_NO_UNREACHABLE_CODE_WARNING_BEGIN
2495
2496 if (Policy != MERGE_ACTIVE_STATES_AND_NODES) return;
2497
2498 // For MERGE_ACTIVE_STATES_AND_NODES, inactive tiles in the other tree are ignored.
2499 if (!tileActive) return;
2500
2501 // Iterate over this node's children and inactive tiles.
2502 for (ValueOffIter iter = this->beginValueOff(); iter; ++iter) {
2503 const Index n = iter.pos();
2504 if (mChildMask.isOn(n)) {
2505 // Merge the other node's active tile into this node's child.
2506 mNodes[n].getChild()->template merge<Policy>(tileValue, /*on=*/true);
2507 } else {
2508 // Replace this node's inactive tile with the other node's active tile.
2509 iter.setValue(tileValue);
2510 mValueMask.setOn(n);
2511 }
2512 }
2513 OPENVDB_NO_UNREACHABLE_CODE_WARNING_END
2514}
2515
2516
2517////////////////////////////////////////
2518
2519
2520template<typename ChildT, Index Log2Dim>
2521template<typename OtherInternalNode>
2522 struct InternalNode<ChildT, Log2Dim>::TopologyUnion
2523{
2524 using W = typename NodeMaskType::Word;
2525 struct A { inline void operator()(W &tV, const W& sV, const W& tC) const
2526 { tV = (tV | sV) & ~tC; }
2527 };
2528 TopologyUnion(const OtherInternalNode* source, InternalNode* target, const bool preserveTiles)
2529 : s(source), t(target), mPreserveTiles(preserveTiles) {
2530 //(*this)(tbb::blocked_range<Index>(0, NUM_VALUES));//single thread for debugging
2531 tbb::parallel_for(tbb::blocked_range<Index>(0, NUM_VALUES), *this);
2532
2533 // Bit processing is done in a single thread!
2534 if (!mPreserveTiles) t->mChildMask |= s->mChildMask;//serial but very fast bitwise post-process
2535 else t->mChildMask |= (s->mChildMask & !t->mValueMask);
2536
2537 A op;
2538 t->mValueMask.foreach(s->mValueMask, t->mChildMask, op);
2539 assert((t->mValueMask & t->mChildMask).isOff());//no overlapping active tiles or child nodes
2540 }
2541 void operator()(const tbb::blocked_range<Index> &r) const {
2542 for (Index i = r.begin(), end=r.end(); i!=end; ++i) {
2543 if (s->mChildMask.isOn(i)) {// Loop over other node's child nodes
2544 const typename OtherInternalNode::ChildNodeType& other = *(s->mNodes[i].getChild());
2545 if (t->mChildMask.isOn(i)) {//this has a child node
2546 t->mNodes[i].getChild()->topologyUnion(other, mPreserveTiles);
2547 } else {// this is a tile so replace it with a child branch with identical topology
2548 if (!mPreserveTiles || t->mValueMask.isOff(i)) { // force child topology
2549 ChildT* child = new ChildT(other, t->mNodes[i].getValue(), TopologyCopy());
2550 if (t->mValueMask.isOn(i)) child->setValuesOn();//activate all values
2551 t->mNodes[i].setChild(child);
2552 }
2553 }
2554 } else if (s->mValueMask.isOn(i) && t->mChildMask.isOn(i)) {
2555 t->mNodes[i].getChild()->setValuesOn();
2556 }
2557 }
2558 }
2559 const OtherInternalNode* s;
2560 InternalNode* t;
2561 const bool mPreserveTiles;
2562};// TopologyUnion
2563
2564template<typename ChildT, Index Log2Dim>
2565template<typename OtherChildT>
2566inline void
2567 InternalNode<ChildT, Log2Dim>::topologyUnion(const InternalNode<OtherChildT, Log2Dim>& other, const bool preserveTiles)
2568{
2569 TopologyUnion<InternalNode<OtherChildT, Log2Dim> > tmp(&other, this, preserveTiles);
2570}
2571
2572template<typename ChildT, Index Log2Dim>
2573template<typename OtherInternalNode>
2574 struct InternalNode<ChildT, Log2Dim>::TopologyIntersection
2575{
2576 using W = typename NodeMaskType::Word;
2577 struct A { inline void operator()(W &tC, const W& sC, const W& sV, const W& tV) const
2578 { tC = (tC & (sC | sV)) | (tV & sC); }
2579 };
2580 TopologyIntersection(const OtherInternalNode* source, InternalNode* target,
2581 const ValueType& background) : s(source), t(target), b(background) {
2582 //(*this)(tbb::blocked_range<Index>(0, NUM_VALUES));//single thread for debugging
2583 tbb::parallel_for(tbb::blocked_range<Index>(0, NUM_VALUES), *this);
2584
2585 // Bit processing is done in a single thread!
2586 A op;
2587 t->mChildMask.foreach(s->mChildMask, s->mValueMask, t->mValueMask, op);
2588
2589 t->mValueMask &= s->mValueMask;
2590 assert((t->mValueMask & t->mChildMask).isOff());//no overlapping active tiles or child nodes
2591 }
2592 void operator()(const tbb::blocked_range<Index> &r) const {
2593 for (Index i = r.begin(), end=r.end(); i!=end; ++i) {
2594 if (t->mChildMask.isOn(i)) {// Loop over this node's child nodes
2595 ChildT* child = t->mNodes[i].getChild();
2596 if (s->mChildMask.isOn(i)) {//other also has a child node
2597 child->topologyIntersection(*(s->mNodes[i].getChild()), b);
2598 } else if (s->mValueMask.isOff(i)) {//other is an inactive tile
2599 delete child;//convert child to an inactive tile
2600 t->mNodes[i].setValue(b);
2601 }
2602 } else if (t->mValueMask.isOn(i) && s->mChildMask.isOn(i)) {//active tile -> a branch
2603 t->mNodes[i].setChild(new ChildT(*(s->mNodes[i].getChild()),
2604 t->mNodes[i].getValue(), TopologyCopy()));
2605 }
2606 }
2607 }
2608 const OtherInternalNode* s;
2609 InternalNode* t;
2610 const ValueType& b;
2611};// TopologyIntersection
2612
2613template<typename ChildT, Index Log2Dim>
2614template<typename OtherChildT>
2615inline void
2616 InternalNode<ChildT, Log2Dim>::topologyIntersection(
2617 const InternalNode<OtherChildT, Log2Dim>& other, const ValueType& background)
2618{
2619 TopologyIntersection<InternalNode<OtherChildT, Log2Dim> > tmp(&other, this, background);
2620}
2621
2622template<typename ChildT, Index Log2Dim>
2623template<typename OtherInternalNode>
2624 struct InternalNode<ChildT, Log2Dim>::TopologyDifference
2625{
2626 using W = typename NodeMaskType::Word;
2627 struct A {inline void operator()(W &tC, const W& sC, const W& sV, const W& tV) const
2628 { tC = (tC & (sC | ~sV)) | (tV & sC); }
2629 };
2630 struct B {inline void operator()(W &tV, const W& sC, const W& sV, const W& tC) const
2631 { tV &= ~((tC & sV) | (sC | sV)); }
2632 };
2633 TopologyDifference(const OtherInternalNode* source, InternalNode* target,
2634 const ValueType& background) : s(source), t(target), b(background) {
2635 //(*this)(tbb::blocked_range<Index>(0, NUM_VALUES));//single thread for debugging
2636 tbb::parallel_for(tbb::blocked_range<Index>(0, NUM_VALUES), *this);
2637
2638 // Bit processing is done in a single thread!
2639 const NodeMaskType oldChildMask(t->mChildMask);//important to avoid cross pollution
2640 A op1;
2641 t->mChildMask.foreach(s->mChildMask, s->mValueMask, t->mValueMask, op1);
2642
2643 B op2;
2644 t->mValueMask.foreach(t->mChildMask, s->mValueMask, oldChildMask, op2);
2645 assert((t->mValueMask & t->mChildMask).isOff());//no overlapping active tiles or child nodes
2646 }
2647 void operator()(const tbb::blocked_range<Index> &r) const {
2648 for (Index i = r.begin(), end=r.end(); i!=end; ++i) {
2649 if (t->mChildMask.isOn(i)) {// Loop over this node's child nodes
2650 ChildT* child = t->mNodes[i].getChild();
2651 if (s->mChildMask.isOn(i)) {
2652 child->topologyDifference(*(s->mNodes[i].getChild()), b);
2653 } else if (s->mValueMask.isOn(i)) {
2654 delete child;//convert child to an inactive tile
2655 t->mNodes[i].setValue(b);
2656 }
2657 } else if (t->mValueMask.isOn(i)) {//this is an active tile
2658 if (s->mChildMask.isOn(i)) {
2659 const typename OtherInternalNode::ChildNodeType& other =
2660 *(s->mNodes[i].getChild());
2661 ChildT* child = new ChildT(other.origin(), t->mNodes[i].getValue(), true);
2662 child->topologyDifference(other, b);
2663 t->mNodes[i].setChild(child);//replace the active tile with a child branch
2664 }
2665 }
2666 }
2667 }
2668 const OtherInternalNode* s;
2669 InternalNode* t;
2670 const ValueType& b;
2671};// TopologyDifference
2672
2673template<typename ChildT, Index Log2Dim>
2674template<typename OtherChildT>
2675inline void
2676 InternalNode<ChildT, Log2Dim>::topologyDifference(const InternalNode<OtherChildT, Log2Dim>& other,
2677 const ValueType& background)
2678{
2679 TopologyDifference<InternalNode<OtherChildT, Log2Dim> > tmp(&other, this, background);
2680}
2681
2682
2683////////////////////////////////////////
2684
2685
2686template<typename ChildT, Index Log2Dim>
2687template<typename CombineOp>
2688inline void
2689InternalNode<ChildT, Log2Dim>::combine(InternalNode& other, CombineOp& op)
2690{
2691 const ValueType zero = zeroVal<ValueType>();
2692
2693 CombineArgs<ValueType> args;
2694
2695 for (Index i = 0; i < NUM_VALUES; ++i) {
2696 if (this->isChildMaskOff(i) && other.isChildMaskOff(i)) {
2697 // Both this node and the other node have constant values (tiles).
2698 // Combine the two values and store the result as this node's new tile value.
2699 op(args.setARef(mNodes[i].getValue())
2700 .setAIsActive(isValueMaskOn(i))
2701 .setBRef(other.mNodes[i].getValue())
2702 .setBIsActive(other.isValueMaskOn(i)));
2703 mNodes[i].setValue(args.result());
2704 mValueMask.set(i, args.resultIsActive());
2705 } else if (this->isChildMaskOn(i) && other.isChildMaskOff(i)) {
2706 // Combine this node's child with the other node's constant value.
2707 ChildNodeType* child = mNodes[i].getChild();
2708 assert(child);
2709 if (child) {
2710 child->combine(other.mNodes[i].getValue(), other.isValueMaskOn(i), op);
2711 }
2712 } else if (this->isChildMaskOff(i) && other.isChildMaskOn(i)) {
2713 // Combine this node's constant value with the other node's child.
2714 ChildNodeType* child = other.mNodes[i].getChild();
2715 assert(child);
2716 if (child) {
2717 // Combine this node's constant value with the other node's child,
2718 // but use a new functor in which the A and B values are swapped,
2719 // since the constant value is the A value, not the B value.
2720 SwappedCombineOp<ValueType, CombineOp> swappedOp(op);
2721 child->combine(mNodes[i].getValue(), isValueMaskOn(i), swappedOp);
2722
2723 // Steal the other node's child.
2724 other.mChildMask.setOff(i);
2725 other.mNodes[i].setValue(zero);
2726 this->setChildNode(i, child);
2727 }
2728
2729 } else /*if (isChildMaskOn(i) && other.isChildMaskOn(i))*/ {
2730 // Combine this node's child with the other node's child.
2731 ChildNodeType
2732 *child = mNodes[i].getChild(),
2733 *otherChild = other.mNodes[i].getChild();
2734 assert(child);
2735 assert(otherChild);
2736 if (child && otherChild) {
2737 child->combine(*otherChild, op);
2738 }
2739 }
2740 }
2741}
2742
2743
2744template<typename ChildT, Index Log2Dim>
2745template<typename CombineOp>
2746inline void
2747 InternalNode<ChildT, Log2Dim>::combine(const ValueType& value, bool valueIsActive, CombineOp& op)
2748{
2749 CombineArgs<ValueType> args;
2750
2751 for (Index i = 0; i < NUM_VALUES; ++i) {
2752 if (this->isChildMaskOff(i)) {
2753 // Combine this node's constant value with the given constant value.
2754 op(args.setARef(mNodes[i].getValue())
2755 .setAIsActive(isValueMaskOn(i))
2756 .setBRef(value)
2757 .setBIsActive(valueIsActive));
2758 mNodes[i].setValue(args.result());
2759 mValueMask.set(i, args.resultIsActive());
2760 } else /*if (isChildMaskOn(i))*/ {
2761 // Combine this node's child with the given constant value.
2762 ChildNodeType* child = mNodes[i].getChild();
2763 assert(child);
2764 if (child) child->combine(value, valueIsActive, op);
2765 }
2766 }
2767}
2768
2769
2770////////////////////////////////////////
2771
2772
2773template<typename ChildT, Index Log2Dim>
2774template<typename CombineOp, typename OtherNodeType>
2775inline void
2776InternalNode<ChildT, Log2Dim>::combine2(const InternalNode& other0, const OtherNodeType& other1,
2777 CombineOp& op)
2778{
2779 CombineArgs<ValueType, typename OtherNodeType::ValueType> args;
2780
2781 for (Index i = 0; i < NUM_VALUES; ++i) {
2782 if (other0.isChildMaskOff(i) && other1.isChildMaskOff(i)) {
2783 op(args.setARef(other0.mNodes[i].getValue())
2784 .setAIsActive(other0.isValueMaskOn(i))
2785 .setBRef(other1.mNodes[i].getValue())
2786 .setBIsActive(other1.isValueMaskOn(i)));
2787 // Replace child i with a constant value.
2788 this->makeChildNodeEmpty(i, args.result());
2789 mValueMask.set(i, args.resultIsActive());
2790 } else {
2791 if (this->isChildMaskOff(i)) {
2792 // Add a new child with the same coordinates, etc. as the other node's child.
2793 const Coord& childOrigin = other0.isChildMaskOn(i)
2794 ? other0.mNodes[i].getChild()->origin()
2795 : other1.mNodes[i].getChild()->origin();
2796 this->setChildNode(i, new ChildNodeType(childOrigin, mNodes[i].getValue()));
2797 }
2798
2799 if (other0.isChildMaskOff(i)) {
2800 // Combine node1's child with node0's constant value
2801 // and write the result into child i.
2802 mNodes[i].getChild()->combine2(other0.mNodes[i].getValue(),
2803 *other1.mNodes[i].getChild(), other0.isValueMaskOn(i), op);
2804 } else if (other1.isChildMaskOff(i)) {
2805 // Combine node0's child with node1's constant value
2806 // and write the result into child i.
2807 mNodes[i].getChild()->combine2(*other0.mNodes[i].getChild(),
2808 other1.mNodes[i].getValue(), other1.isValueMaskOn(i), op);
2809 } else {
2810 // Combine node0's child with node1's child
2811 // and write the result into child i.
2812 mNodes[i].getChild()->combine2(*other0.mNodes[i].getChild(),
2813 *other1.mNodes[i].getChild(), op);
2814 }
2815 }
2816 }
2817}
2818
2819
2820template<typename ChildT, Index Log2Dim>
2821template<typename CombineOp, typename OtherNodeType>
2822inline void
2823 InternalNode<ChildT, Log2Dim>::combine2(const ValueType& value, const OtherNodeType& other,
2824 bool valueIsActive, CombineOp& op)
2825{
2826 CombineArgs<ValueType, typename OtherNodeType::ValueType> args;
2827
2828 for (Index i = 0; i < NUM_VALUES; ++i) {
2829 if (other.isChildMaskOff(i)) {
2830 op(args.setARef(value)
2831 .setAIsActive(valueIsActive)
2832 .setBRef(other.mNodes[i].getValue())
2833 .setBIsActive(other.isValueMaskOn(i)));
2834 // Replace child i with a constant value.
2835 this->makeChildNodeEmpty(i, args.result());
2836 mValueMask.set(i, args.resultIsActive());
2837 } else {
2838 typename OtherNodeType::ChildNodeType* otherChild = other.mNodes[i].getChild();
2839 assert(otherChild);
2840 if (this->isChildMaskOff(i)) {
2841 // Add a new child with the same coordinates, etc.
2842 // as the other node's child.
2843 this->setChildNode(i, new ChildNodeType(*otherChild));
2844 }
2845 // Combine the other node's child with a constant value
2846 // and write the result into child i.
2847 mNodes[i].getChild()->combine2(value, *otherChild, valueIsActive, op);
2848 }
2849 }
2850}
2851
2852
2853template<typename ChildT, Index Log2Dim>
2854template<typename CombineOp, typename OtherValueType>
2855inline void
2856 InternalNode<ChildT, Log2Dim>::combine2(const InternalNode& other, const OtherValueType& value,
2857 bool valueIsActive, CombineOp& op)
2858{
2859 CombineArgs<ValueType, OtherValueType> args;
2860
2861 for (Index i = 0; i < NUM_VALUES; ++i) {
2862 if (other.isChildMaskOff(i)) {
2863 op(args.setARef(other.mNodes[i].getValue())
2864 .setAIsActive(other.isValueMaskOn(i))
2865 .setBRef(value)
2866 .setBIsActive(valueIsActive));
2867 // Replace child i with a constant value.
2868 this->makeChildNodeEmpty(i, args.result());
2869 mValueMask.set(i, args.resultIsActive());
2870 } else {
2871 ChildNodeType* otherChild = other.mNodes[i].getChild();
2872 assert(otherChild);
2873 if (this->isChildMaskOff(i)) {
2874 // Add a new child with the same coordinates, etc. as the other node's child.
2875 this->setChildNode(i,
2876 new ChildNodeType(otherChild->origin(), mNodes[i].getValue()));
2877 }
2878 // Combine the other node's child with a constant value
2879 // and write the result into child i.
2880 mNodes[i].getChild()->combine2(*otherChild, value, valueIsActive, op);
2881 }
2882 }
2883}
2884
2885
2886////////////////////////////////////////
2887
2888
2889template<typename ChildT, Index Log2Dim>
2890template<typename BBoxOp>
2891inline void
2892InternalNode<ChildT, Log2Dim>::visitActiveBBox(BBoxOp& op) const
2893{
2894 for (ValueOnCIter i = this->cbeginValueOn(); i; ++i) {
2895 op.template operator()<LEVEL>(CoordBBox::createCube(i.getCoord(), ChildNodeType::DIM));
2896 }
2897 if (op.template descent<LEVEL>()) {
2898 for (ChildOnCIter i = this->cbeginChildOn(); i; ++i) i->visitActiveBBox(op);
2899 } else {
2900 for (ChildOnCIter i = this->cbeginChildOn(); i; ++i) {
2901 op.template operator()<LEVEL>(i->getNodeBoundingBox());
2902 }
2903 }
2904}
2905
2906
2907template<typename ChildT, Index Log2Dim>
2908template<typename VisitorOp>
2909inline void
2910InternalNode<ChildT, Log2Dim>::visit(VisitorOp& op)
2911{
2912 doVisit<InternalNode, VisitorOp, ChildAllIter>(*this, op);
2913}
2914
2915
2916template<typename ChildT, Index Log2Dim>
2917template<typename VisitorOp>
2918inline void
2919 InternalNode<ChildT, Log2Dim>::visit(VisitorOp& op) const
2920{
2921 doVisit<const InternalNode, VisitorOp, ChildAllCIter>(*this, op);
2922}
2923
2924
2925template<typename ChildT, Index Log2Dim>
2926template<typename NodeT, typename VisitorOp, typename ChildAllIterT>
2927inline void
2928InternalNode<ChildT, Log2Dim>::doVisit(NodeT& self, VisitorOp& op)
2929{
2930 typename NodeT::ValueType val;
2931 for (ChildAllIterT iter = self.beginChildAll(); iter; ++iter) {
2932 if (op(iter)) continue;
2933 if (typename ChildAllIterT::ChildNodeType* child = iter.probeChild(val)) {
2934 child->visit(op);
2935 }
2936 }
2937}
2938
2939
2940////////////////////////////////////////
2941
2942
2943template<typename ChildT, Index Log2Dim>
2944template<typename OtherNodeType, typename VisitorOp>
2945inline void
2946InternalNode<ChildT, Log2Dim>::visit2Node(OtherNodeType& other, VisitorOp& op)
2947{
2948 doVisit2Node<InternalNode, OtherNodeType, VisitorOp, ChildAllIter,
2949 typename OtherNodeType::ChildAllIter>(*this, other, op);
2950}
2951
2952
2953template<typename ChildT, Index Log2Dim>
2954template<typename OtherNodeType, typename VisitorOp>
2955inline void
2956 InternalNode<ChildT, Log2Dim>::visit2Node(OtherNodeType& other, VisitorOp& op) const
2957{
2958 doVisit2Node<const InternalNode, OtherNodeType, VisitorOp, ChildAllCIter,
2959 typename OtherNodeType::ChildAllCIter>(*this, other, op);
2960}
2961
2962
2963template<typename ChildT, Index Log2Dim>
2964template<
2965 typename NodeT,
2966 typename OtherNodeT,
2967 typename VisitorOp,
2968 typename ChildAllIterT,
2969 typename OtherChildAllIterT>
2970inline void
2971InternalNode<ChildT, Log2Dim>::doVisit2Node(NodeT& self, OtherNodeT& other, VisitorOp& op)
2972{
2973 // Allow the two nodes to have different ValueTypes, but not different dimensions.
2974 static_assert(OtherNodeT::NUM_VALUES == NodeT::NUM_VALUES,
2975 "visit2() requires nodes to have the same dimensions");
2976 static_assert(OtherNodeT::LEVEL == NodeT::LEVEL,
2977 "visit2() requires nodes to be at the same tree level");
2978
2979 typename NodeT::ValueType val;
2980 typename OtherNodeT::ValueType otherVal;
2981
2982 ChildAllIterT iter = self.beginChildAll();
2983 OtherChildAllIterT otherIter = other.beginChildAll();
2984
2985 for ( ; iter && otherIter; ++iter, ++otherIter)
2986 {
2987 const size_t skipBranch = static_cast<size_t>(op(iter, otherIter));
2988
2989 typename ChildAllIterT::ChildNodeType* child =
2990 (skipBranch & 1U) ? nullptr : iter.probeChild(val);
2991 typename OtherChildAllIterT::ChildNodeType* otherChild =
2992 (skipBranch & 2U) ? nullptr : otherIter.probeChild(otherVal);
2993
2994 if (child != nullptr && otherChild != nullptr) {
2995 child->visit2Node(*otherChild, op);
2996 } else if (child != nullptr) {
2997 child->visit2(otherIter, op);
2998 } else if (otherChild != nullptr) {
2999 otherChild->visit2(iter, op, /*otherIsLHS=*/true);
3000 }
3001 }
3002}
3003
3004
3005////////////////////////////////////////
3006
3007
3008template<typename ChildT, Index Log2Dim>
3009template<typename OtherChildAllIterType, typename VisitorOp>
3010inline void
3011 InternalNode<ChildT, Log2Dim>::visit2(OtherChildAllIterType& otherIter,
3012 VisitorOp& op, bool otherIsLHS)
3013{
3014 doVisit2<InternalNode, VisitorOp, ChildAllIter, OtherChildAllIterType>(
3015 *this, otherIter, op, otherIsLHS);
3016}
3017
3018
3019template<typename ChildT, Index Log2Dim>
3020template<typename OtherChildAllIterType, typename VisitorOp>
3021inline void
3022 InternalNode<ChildT, Log2Dim>::visit2(OtherChildAllIterType& otherIter,
3023 VisitorOp& op, bool otherIsLHS) const
3024{
3025 doVisit2<const InternalNode, VisitorOp, ChildAllCIter, OtherChildAllIterType>(
3026 *this, otherIter, op, otherIsLHS);
3027}
3028
3029
3030template<typename ChildT, Index Log2Dim>
3031template<typename NodeT, typename VisitorOp, typename ChildAllIterT, typename OtherChildAllIterT>
3032inline void
3033InternalNode<ChildT, Log2Dim>::doVisit2(NodeT& self, OtherChildAllIterT& otherIter,
3034 VisitorOp& op, bool otherIsLHS)
3035{
3036 if (!otherIter) return;
3037
3038 const size_t skipBitMask = (otherIsLHS ? 2U : 1U);
3039
3040 typename NodeT::ValueType val;
3041 for (ChildAllIterT iter = self.beginChildAll(); iter; ++iter) {
3042 const size_t skipBranch = static_cast<size_t>(
3043 otherIsLHS ? op(otherIter, iter) : op(iter, otherIter));
3044
3045 typename ChildAllIterT::ChildNodeType* child =
3046 (skipBranch & skipBitMask) ? nullptr : iter.probeChild(val);
3047
3048 if (child != nullptr) child->visit2(otherIter, op, otherIsLHS);
3049 }
3050}
3051
3052
3053////////////////////////////////////////
3054
3055
3056template<typename ChildT, Index Log2Dim>
3057inline void
3058InternalNode<ChildT, Log2Dim>::writeBuffers(std::ostream& os, bool toHalf) const
3059{
3060 for (ChildOnCIter iter = this->cbeginChildOn(); iter; ++iter) {
3061 iter->writeBuffers(os, toHalf);
3062 }
3063}
3064
3065
3066template<typename ChildT, Index Log2Dim>
3067inline void
3068InternalNode<ChildT, Log2Dim>::readBuffers(std::istream& is, bool fromHalf)
3069{
3070 for (ChildOnIter iter = this->beginChildOn(); iter; ++iter) {
3071 iter->readBuffers(is, fromHalf);
3072 }
3073}
3074
3075
3076template<typename ChildT, Index Log2Dim>
3077inline void
3078 InternalNode<ChildT, Log2Dim>::readBuffers(std::istream& is,
3079 const CoordBBox& clipBBox, bool fromHalf)
3080{
3081 for (ChildOnIter iter = this->beginChildOn(); iter; ++iter) {
3082 // Stream in the branch rooted at this child.
3083 // (We can't skip over children that lie outside the clipping region,
3084 // because buffers are serialized in depth-first order and need to be
3085 // unserialized in the same order.)
3086 iter->readBuffers(is, clipBBox, fromHalf);
3087 }
3088
3089 // Get this tree's background value.
3090 ValueType background = zeroVal<ValueType>();
3091 if (const void* bgPtr = io::getGridBackgroundValuePtr(is)) {
3092 background = *static_cast<const ValueType*>(bgPtr);
3093 }
3094 this->clip(clipBBox, background);
3095}
3096
3097
3098////////////////////////////////////////
3099
3100
3101template<typename ChildT, Index Log2Dim>
3102void
3103InternalNode<ChildT, Log2Dim>::getNodeLog2Dims(std::vector<Index>& dims)
3104{
3105 dims.push_back(Log2Dim);
3106 ChildNodeType::getNodeLog2Dims(dims);
3107}
3108
3109
3110template<typename ChildT, Index Log2Dim>
3111inline void
3112InternalNode<ChildT, Log2Dim>::offsetToLocalCoord(Index n, Coord &xyz)
3113{
3114 assert(n<(1<<3*Log2Dim));
3115 xyz.setX(n >> 2*Log2Dim);
3116 n &= ((1<<2*Log2Dim)-1);
3117 xyz.setY(n >> Log2Dim);
3118 xyz.setZ(n & ((1<<Log2Dim)-1));
3119}
3120
3121
3122template<typename ChildT, Index Log2Dim>
3123inline Index
3124InternalNode<ChildT, Log2Dim>::coordToOffset(const Coord& xyz)
3125{
3126 return (((xyz[0] & (DIM-1u)) >> ChildNodeType::TOTAL) << 2*Log2Dim)
3127 + (((xyz[1] & (DIM-1u)) >> ChildNodeType::TOTAL) << Log2Dim)
3128 + ((xyz[2] & (DIM-1u)) >> ChildNodeType::TOTAL);
3129}
3130
3131
3132template<typename ChildT, Index Log2Dim>
3133inline Coord
3134InternalNode<ChildT, Log2Dim>::offsetToGlobalCoord(Index n) const
3135{
3136 Coord local;
3137 this->offsetToLocalCoord(n, local);
3138 local <<= ChildT::TOTAL;
3139 return local + this->origin();
3140}
3141
3142
3143////////////////////////////////////////
3144
3145
3146template<typename ChildT, Index Log2Dim>
3147template<typename ArrayT>
3148inline void
3149InternalNode<ChildT, Log2Dim>::getNodes(ArrayT& array)
3150{
3151 using T = typename ArrayT::value_type;
3152 static_assert(std::is_pointer<T>::value, "argument to getNodes() must be a pointer array");
3153 using ArrayChildT = typename std::conditional<
3154 std::is_const<typename std::remove_pointer<T>::type>::value, const ChildT, ChildT>::type;
3155 for (ChildOnIter iter = this->beginChildOn(); iter; ++iter) {
3156 OPENVDB_NO_UNREACHABLE_CODE_WARNING_BEGIN
3157 if (std::is_same<T, ArrayChildT*>::value) {
3158 array.push_back(reinterpret_cast<T>(mNodes[iter.pos()].getChild()));
3159 } else {
3160 iter->getNodes(array);//descent
3161 }
3162 OPENVDB_NO_UNREACHABLE_CODE_WARNING_END
3163 }
3164}
3165
3166template<typename ChildT, Index Log2Dim>
3167template<typename ArrayT>
3168inline void
3169 InternalNode<ChildT, Log2Dim>::getNodes(ArrayT& array) const
3170{
3171 using T = typename ArrayT::value_type;
3172 static_assert(std::is_pointer<T>::value, "argument to getNodes() must be a pointer array");
3173 static_assert(std::is_const<typename std::remove_pointer<T>::type>::value,
3174 "argument to getNodes() must be an array of const node pointers");
3175 for (ChildOnCIter iter = this->cbeginChildOn(); iter; ++iter) {
3176 OPENVDB_NO_UNREACHABLE_CODE_WARNING_BEGIN
3177 if (std::is_same<T, const ChildT*>::value) {
3178 array.push_back(reinterpret_cast<T>(mNodes[iter.pos()].getChild()));
3179 } else {
3180 iter->getNodes(array);//descent
3181 }
3182 OPENVDB_NO_UNREACHABLE_CODE_WARNING_END
3183 }
3184}
3185
3186
3187////////////////////////////////////////
3188
3189
3190template<typename ChildT, Index Log2Dim>
3191template<typename ArrayT>
3192inline void
3193InternalNode<ChildT, Log2Dim>::stealNodes(ArrayT& array, const ValueType& value, bool state)
3194{
3195 using T = typename ArrayT::value_type;
3196 static_assert(std::is_pointer<T>::value, "argument to stealNodes() must be a pointer array");
3197 using ArrayChildT = typename std::conditional<
3198 std::is_const<typename std::remove_pointer<T>::type>::value, const ChildT, ChildT>::type;
3199 OPENVDB_NO_UNREACHABLE_CODE_WARNING_BEGIN
3200 for (ChildOnIter iter = this->beginChildOn(); iter; ++iter) {
3201 const Index n = iter.pos();
3202 if (std::is_same<T, ArrayChildT*>::value) {
3203 array.push_back(reinterpret_cast<T>(mNodes[n].getChild()));
3204 mValueMask.set(n, state);
3205 mNodes[n].setValue(value);
3206 } else {
3207 iter->stealNodes(array, value, state);//descent
3208 }
3209 }
3210 if (std::is_same<T, ArrayChildT*>::value) mChildMask.setOff();
3211 OPENVDB_NO_UNREACHABLE_CODE_WARNING_END
3212}
3213
3214
3215////////////////////////////////////////
3216
3217
3218template<typename ChildT, Index Log2Dim>
3219inline void
3220InternalNode<ChildT, Log2Dim>::resetBackground(const ValueType& oldBackground,
3221 const ValueType& newBackground)
3222{
3223 if (math::isExactlyEqual(oldBackground, newBackground)) return;
3224 for (Index i = 0; i < NUM_VALUES; ++i) {
3225 if (this->isChildMaskOn(i)) {
3226 mNodes[i].getChild()->resetBackground(oldBackground, newBackground);
3227 } else if (this->isValueMaskOff(i)) {
3228 if (math::isApproxEqual(mNodes[i].getValue(), oldBackground)) {
3229 mNodes[i].setValue(newBackground);
3230 } else if (math::isApproxEqual(mNodes[i].getValue(), math::negative(oldBackground))) {
3231 mNodes[i].setValue(math::negative(newBackground));
3232 }
3233 }
3234 }
3235}
3236
3237template<typename ChildT, Index Log2Dim>
3238template<typename OtherChildNodeType, Index OtherLog2Dim>
3239inline bool
3240InternalNode<ChildT, Log2Dim>::hasSameTopology(
3241 const InternalNode<OtherChildNodeType, OtherLog2Dim>* other) const
3242{
3243 if (Log2Dim != OtherLog2Dim || mChildMask != other->mChildMask ||
3244 mValueMask != other->mValueMask) return false;
3245 for (ChildOnCIter iter = this->cbeginChildOn(); iter; ++iter) {
3246 if (!iter->hasSameTopology(other->mNodes[iter.pos()].getChild())) return false;
3247 }
3248 return true;
3249}
3250
3251
3252template<typename ChildT, Index Log2Dim>
3253inline void
3254InternalNode<ChildT, Log2Dim>::resetChildNode(Index i, ChildNodeType* child)
3255{
3256 assert(child);
3257 if (this->isChildMaskOn(i)) {
3258 delete mNodes[i].getChild();
3259 } else {
3260 mChildMask.setOn(i);
3261 mValueMask.setOff(i);
3262 }
3263 mNodes[i].setChild(child);
3264}
3265
3266template<typename ChildT, Index Log2Dim>
3267inline void
3268InternalNode<ChildT, Log2Dim>::setChildNode(Index i, ChildNodeType* child)
3269{
3270 assert(child);
3271 assert(mChildMask.isOff(i));
3272 mChildMask.setOn(i);
3273 mValueMask.setOff(i);
3274 mNodes[i].setChild(child);
3275}
3276
3277
3278template<typename ChildT, Index Log2Dim>
3279inline ChildT*
3280InternalNode<ChildT, Log2Dim>::unsetChildNode(Index i, const ValueType& value)
3281{
3282 if (this->isChildMaskOff(i)) {
3283 mNodes[i].setValue(value);
3284 return nullptr;
3285 }
3286 ChildNodeType* child = mNodes[i].getChild();
3287 mChildMask.setOff(i);
3288 mNodes[i].setValue(value);
3289 return child;
3290}
3291
3292
3293template<typename ChildT, Index Log2Dim>
3294inline void
3295InternalNode<ChildT, Log2Dim>::makeChildNodeEmpty(Index n, const ValueType& value)
3296{
3297 delete this->unsetChildNode(n, value);
3298}
3299
3300template<typename ChildT, Index Log2Dim>
3301inline ChildT*
3302InternalNode<ChildT, Log2Dim>::getChildNode(Index n)
3303{
3304 assert(this->isChildMaskOn(n));
3305 return mNodes[n].getChild();
3306}
3307
3308
3309template<typename ChildT, Index Log2Dim>
3310inline const ChildT*
3311 InternalNode<ChildT, Log2Dim>::getChildNode(Index n) const
3312{
3313 assert(this->isChildMaskOn(n));
3314 return mNodes[n].getChild();
3315}
3316
3317} // namespace tree
3318} // namespace OPENVDB_VERSION_NAME
3319} // namespace openvdb
3320
3321#endif // OPENVDB_TREE_INTERNALNODE_HAS_BEEN_INCLUDED
Compression.h
value
ValueT value
Definition: GridBuilder.h:1287
child
ChildT * child
Definition: GridBuilder.h:1286
Iterator.h
Math.h
General-purpose arithmetic and comparison routines, most of which accept arbitrary value types (or at...
NodeMasks.h
NodeUnion.h
Platform.h
OPENVDB_NO_UNREACHABLE_CODE_WARNING_END
#define OPENVDB_NO_UNREACHABLE_CODE_WARNING_END
Definition: Platform.h:116
OPENVDB_NO_UNREACHABLE_CODE_WARNING_BEGIN
#define OPENVDB_NO_UNREACHABLE_CODE_WARNING_BEGIN
SIMD Intrinsic Headers.
Definition: Platform.h:115
openvdb::v9_1::CombineArgs
This struct collects both input and output arguments to "grid combiner" functors used with the tree::...
Definition: Types.h:530
openvdb::v9_1::CombineArgs::setARef
CombineArgs & setARef(const AValueType &a)
Redirect the A value to a new external source.
Definition: Types.h:582
openvdb::v9_1::CombineArgs::result
const AValueType & result() const
Get the output value.
Definition: Types.h:574
openvdb::v9_1::CombineArgs::setBIsActive
CombineArgs & setBIsActive(bool b)
Set the active state of the B value.
Definition: Types.h:598
openvdb::v9_1::CombineArgs::setBRef
CombineArgs & setBRef(const BValueType &b)
Redirect the B value to a new external source.
Definition: Types.h:584
openvdb::v9_1::CombineArgs::resultIsActive
bool resultIsActive() const
Definition: Types.h:593
openvdb::v9_1::CombineArgs::setAIsActive
CombineArgs & setAIsActive(bool b)
Set the active state of the A value.
Definition: Types.h:596
openvdb::v9_1::DeepCopy
Tag dispatch class that distinguishes constructors that deep copy.
Definition: Types.h:646
openvdb::v9_1::PartialCreate
Tag dispatch class that distinguishes constructors during file input.
Definition: Types.h:650
openvdb::v9_1::TopologyCopy
Tag dispatch class that distinguishes topology copy constructors from deep copy constructors.
Definition: Types.h:644
openvdb::v9_1::math::CoordBBox
Axis-aligned bounding box of signed integer coordinates.
Definition: Coord.h:249
openvdb::v9_1::math::CoordBBox::translate
void translate(const Coord &t)
Translate this bounding box by (tx, ty, tz).
Definition: Coord.h:458
openvdb::v9_1::math::CoordBBox::expand
void expand(ValueType padding)
Pad this bounding box with the specified padding.
Definition: Coord.h:418
openvdb::v9_1::math::CoordBBox::min
const Coord & min() const
Definition: Coord.h:321
openvdb::v9_1::math::CoordBBox::hasOverlap
bool hasOverlap(const CoordBBox &b) const
Return true if the given bounding box overlaps with this bounding box.
Definition: Coord.h:412
openvdb::v9_1::math::CoordBBox::max
const Coord & max() const
Definition: Coord.h:322
openvdb::v9_1::math::CoordBBox::isInside
bool isInside(const Coord &xyz) const
Return true if point (x, y, z) is inside this bounding box.
Definition: Coord.h:400
openvdb::v9_1::math::CoordBBox::intersect
void intersect(const CoordBBox &bbox)
Intersect this bounding box with the given bounding box.
Definition: Coord.h:444
openvdb::v9_1::math::CoordBBox::createCube
static CoordBBox createCube(const Coord &min, ValueType dim)
Definition: Coord.h:313
openvdb::v9_1::math::Coord
Signed (x, y, z) 32-bit integer coordinates.
Definition: Coord.h:25
openvdb::v9_1::math::Coord::y
Int32 y() const
Definition: Coord.h:131
openvdb::v9_1::math::Coord::offsetBy
Coord offsetBy(Int32 dx, Int32 dy, Int32 dz) const
Definition: Coord.h:91
openvdb::v9_1::math::Coord::minComponent
void minComponent(const Coord &other)
Perform a component-wise minimum with the other Coord.
Definition: Coord.h:175
openvdb::v9_1::math::Coord::x
Int32 x() const
Definition: Coord.h:130
openvdb::v9_1::math::Coord::setZ
Coord & setZ(Int32 z)
Definition: Coord.h:81
openvdb::v9_1::math::Coord::setY
Coord & setY(Int32 y)
Definition: Coord.h:80
openvdb::v9_1::math::Coord::max
static Coord max()
Return the largest possible coordinate.
Definition: Coord.h:46
openvdb::v9_1::math::Coord::lessThan
static bool lessThan(const Coord &a, const Coord &b)
Definition: Coord.h:208
openvdb::v9_1::math::Coord::z
Int32 z() const
Definition: Coord.h:132
openvdb::v9_1::math::Coord::setX
Coord & setX(Int32 x)
Definition: Coord.h:79
openvdb::v9_1::tree::InternalNode
Definition: InternalNode.h:34
openvdb::v9_1::tree::InternalNode::setValueAndCache
void setValueAndCache(const Coord &xyz, const ValueType &value, AccessorT &)
Definition: InternalNode.h:1782
openvdb::v9_1::tree::InternalNode::visit
void visit(VisitorOp &)
Definition: InternalNode.h:2910
openvdb::v9_1::tree::InternalNode::isValueOn
bool isValueOn(Index offset) const
Return true if the voxel at the given offset is active.
Definition: InternalNode.h:335
openvdb::v9_1::tree::InternalNode::merge
void merge(InternalNode &other, const ValueType &background, const ValueType &otherBackground)
Efficiently merge another tree into this tree using one of several schemes.
Definition: InternalNode.h:2383
openvdb::v9_1::tree::InternalNode::cbeginChildOn
ChildOnCIter cbeginChildOn() const
Definition: InternalNode.h:220
openvdb::v9_1::tree::InternalNode::getFirstValue
const ValueType & getFirstValue() const
If the first entry in this node's table is a tile, return the tile's value. Otherwise,...
Definition: InternalNode.h:2298
openvdb::v9_1::tree::InternalNode::getNodeBoundingBox
CoordBBox getNodeBoundingBox() const
Return the bounding box of this node, i.e., the full index space spanned by the node regardless of it...
Definition: InternalNode.h:299
openvdb::v9_1::tree::InternalNode::beginChildOn
ChildOnCIter beginChildOn() const
Definition: InternalNode.h:223
openvdb::v9_1::tree::InternalNode::beginChildOn
ChildOnIter beginChildOn()
Definition: InternalNode.h:226
openvdb::v9_1::tree::InternalNode::probeNode
NodeType * probeNode(const Coord &xyz)
Return a pointer to the node that contains voxel (x, y, z). If no such node exists,...
openvdb::v9_1::tree::InternalNode::isChildMaskOff
bool isChildMaskOff(Index n) const
Definition: InternalNode.h:770
openvdb::v9_1::tree::InternalNode::isValueOn
bool isValueOn(const Coord &xyz) const
Return true if the voxel at the given coordinates is active.
Definition: InternalNode.h:1591
openvdb::v9_1::tree::InternalNode::writeTopology
void writeTopology(std::ostream &, bool toHalf=false) const
Definition: InternalNode.h:2213
openvdb::v9_1::tree::InternalNode::copyToDense
void copyToDense(const CoordBBox &bbox, DenseT &dense) const
Copy into a dense grid the values of the voxels that lie within a given bounding box.
Definition: InternalNode.h:2168
openvdb::v9_1::tree::InternalNode::setChildNode
void setChildNode(Index i, ChildNodeType *child)
Definition: InternalNode.h:3268
openvdb::v9_1::tree::InternalNode::isChildMaskOff
bool isChildMaskOff() const
Definition: InternalNode.h:771
openvdb::v9_1::tree::InternalNode::cbeginValueOff
ValueOffCIter cbeginValueOff() const
Definition: InternalNode.h:232
openvdb::v9_1::tree::InternalNode::probeLeafAndCache
LeafNodeType * probeLeafAndCache(const Coord &xyz, AccessorT &acc)
Same as probeLeaf() except, if necessary, update the accessor with pointers to the nodes along the pa...
openvdb::v9_1::tree::InternalNode::transientData
Index32 transientData() const
Return the transient data value.
Definition: InternalNode.h:273
openvdb::v9_1::tree::InternalNode::addLeafAndCache
void addLeafAndCache(LeafNodeType *leaf, AccessorT &)
Same as addLeaf() except, if necessary, update the accessor with pointers to the nodes along the path...
Definition: InternalNode.h:1369
openvdb::v9_1::tree::InternalNode::getChildDim
static Index getChildDim()
Definition: InternalNode.h:256
openvdb::v9_1::tree::InternalNode::visit2
void visit2(IterT &otherIter, VisitorOp &, bool otherIsLHS=false) const
openvdb::v9_1::tree::InternalNode::getChildMask
const NodeMaskType & getChildMask() const
Definition: InternalNode.h:773
openvdb::v9_1::tree::InternalNode::nonLeafCount
Index32 nonLeafCount() const
Definition: InternalNode.h:1058
openvdb::v9_1::tree::InternalNode::topologyIntersection
void topologyIntersection(const InternalNode< OtherChildNodeType, Log2Dim > &other, const ValueType &background)
Intersects this tree's set of active values with the active values of the other tree,...
openvdb::v9_1::tree::InternalNode::mChildMask
NodeMaskType mChildMask
Definition: InternalNode.h:825
openvdb::v9_1::tree::InternalNode::isValueMaskOff
bool isValueMaskOff() const
Definition: InternalNode.h:768
openvdb::v9_1::tree::InternalNode::getNodes
void getNodes(ArrayT &array)
Adds all nodes of a certain type to a container with the following API:
Definition: InternalNode.h:3149
openvdb::v9_1::tree::InternalNode::isValueMaskOn
bool isValueMaskOn() const
Definition: InternalNode.h:766
openvdb::v9_1::tree::InternalNode::visit2
void visit2(IterT &otherIter, VisitorOp &, bool otherIsLHS=false)
openvdb::v9_1::tree::InternalNode::stealNode
NodeT * stealNode(const Coord &xyz, const ValueType &value, bool state)
Return a pointer to the node of type NodeT that contains voxel (x, y, z) and replace it with a tile o...
Definition: InternalNode.h:1192
openvdb::v9_1::tree::InternalNode::voxelizeActiveTiles
void voxelizeActiveTiles(bool threaded=true)
Densify active tiles, i.e., replace them with leaf-level active voxels.
Definition: InternalNode.h:2362
openvdb::v9_1::tree::InternalNode::mValueMask
NodeMaskType mValueMask
Definition: InternalNode.h:825
openvdb::v9_1::tree::InternalNode::InternalNode
InternalNode()
Default constructor.
Definition: InternalNode.h:72
openvdb::v9_1::tree::InternalNode::isChildMaskOn
bool isChildMaskOn(Index n) const
Definition: InternalNode.h:769
openvdb::v9_1::tree::InternalNode::~InternalNode
~InternalNode()
Definition: InternalNode.h:1020
openvdb::v9_1::tree::InternalNode::onLeafVoxelCount
Index64 onLeafVoxelCount() const
Definition: InternalNode.h:1103
openvdb::v9_1::tree::InternalNode::probeConstLeafAndCache
const LeafNodeType * probeConstLeafAndCache(const Coord &xyz, AccessorT &acc) const
openvdb::v9_1::tree::InternalNode::getValueOffMask
NodeMaskType getValueOffMask() const
Definition: InternalNode.h:774
openvdb::v9_1::tree::InternalNode::probeLeaf
LeafNodeType * probeLeaf(const Coord &xyz)
Return a pointer to the leaf node that contains voxel (x, y, z). If no such node exists,...
Definition: InternalNode.h:1294
openvdb::v9_1::tree::InternalNode::doVisit
static void doVisit(NodeT &, VisitorOp &)
Definition: InternalNode.h:2928
openvdb::v9_1::tree::InternalNode::cbeginValueAll
ValueAllCIter cbeginValueAll() const
Definition: InternalNode.h:233
openvdb::v9_1::tree::InternalNode::prune
void prune(const ValueType &tolerance=zeroVal< ValueType >())
Reduce the memory footprint of this tree by replacing with tiles any nodes whose values are all the s...
Definition: InternalNode.h:1168
openvdb::v9_1::tree::InternalNode::beginValueOn
ValueOnCIter beginValueOn() const
Definition: InternalNode.h:234
openvdb::v9_1::tree::InternalNode::offLeafVoxelCount
Index64 offLeafVoxelCount() const
Definition: InternalNode.h:1115
openvdb::v9_1::tree::InternalNode::resetBackground
void resetBackground(const ValueType &oldBackground, const ValueType &newBackground)
Change inactive tiles or voxels with value oldBackground to newBackground or -oldBackground to -newBa...
Definition: InternalNode.h:3220
openvdb::v9_1::tree::InternalNode::addTile
void addTile(Index level, const Coord &xyz, const ValueType &value, bool state)
Add a tile at the specified tree level that contains voxel (x, y, z), possibly creating a parent bran...
Definition: InternalNode.h:1428
openvdb::v9_1::tree::InternalNode::setOrigin
void setOrigin(const Coord &origin)
Set the grid index coordinates of this node's local origin.
Definition: InternalNode.h:269
openvdb::v9_1::tree::InternalNode::origin
const Coord & origin() const
Return the grid index coordinates of this node's local origin.
Definition: InternalNode.h:267
openvdb::v9_1::tree::InternalNode::isInactive
bool isInactive() const
Return true if this node has no children and only contains inactive values.
Definition: InternalNode.h:330
openvdb::v9_1::tree::InternalNode::doVisit2Node
static void doVisit2Node(NodeT &, OtherNodeT &, VisitorOp &)
Definition: InternalNode.h:2971
openvdb::v9_1::tree::InternalNode::modifyValueAndActiveState
void modifyValueAndActiveState(const Coord &xyz, const ModifyOp &op)
Apply a functor to the voxel at the given coordinates.
Definition: InternalNode.h:1960
openvdb::v9_1::tree::InternalNode::setValueOnlyAndCache
void setValueOnlyAndCache(const Coord &xyz, const ValueType &value, AccessorT &)
Definition: InternalNode.h:1823
openvdb::v9_1::tree::InternalNode::combine2
void combine2(const InternalNode &other0, const OtherNodeType &other1, CombineOp &)
Definition: InternalNode.h:2776
openvdb::v9_1::tree::InternalNode::InternalNode
friend class InternalNode
During topology-only construction, access is needed to protected/private members of other template in...
Definition: InternalNode.h:761
openvdb::v9_1::tree::InternalNode::isValueMaskOff
bool isValueMaskOff(Index n) const
Definition: InternalNode.h:767
openvdb::v9_1::tree::InternalNode::setValueOnly
void setValueOnly(const Coord &xyz, const ValueType &value)
Set the value of the voxel at the given coordinates but don't change its active state.
Definition: InternalNode.h:1806
openvdb::v9_1::tree::InternalNode::probeConstLeaf
const LeafNodeType * probeConstLeaf(const Coord &xyz) const
Definition: InternalNode.h:1320
openvdb::v9_1::tree::InternalNode::getValueLevelAndCache
Index getValueLevelAndCache(const Coord &xyz, AccessorT &) const
Return the level of the tree (0 = leaf) at which the value at the given coordinates resides.
Definition: InternalNode.h:1644
openvdb::v9_1::tree::InternalNode::probeConstNodeAndCache
const NodeType * probeConstNodeAndCache(const Coord &xyz, AccessorT &) const
openvdb::v9_1::tree::InternalNode::fill
void fill(const CoordBBox &bbox, const ValueType &value, bool active=true)
Set all voxels within a given axis-aligned box to a constant value.
Definition: InternalNode.h:2064
openvdb::v9_1::tree::InternalNode::beginValueOff
ValueOffCIter beginValueOff() const
Definition: InternalNode.h:236
openvdb::v9_1::tree::InternalNode::setValueOffAndCache
void setValueOffAndCache(const Coord &xyz, const ValueType &value, AccessorT &)
Definition: InternalNode.h:1737
openvdb::v9_1::tree::InternalNode::addLeaf
void addLeaf(LeafNodeType *leaf)
Add the specified leaf to this node, possibly creating a child branch in the process....
Definition: InternalNode.h:1340
openvdb::v9_1::tree::InternalNode::getValueAndCache
const ValueType & getValueAndCache(const Coord &xyz, AccessorT &) const
openvdb::v9_1::tree::InternalNode::cbeginChildAll
ChildAllCIter cbeginChildAll() const
Definition: InternalNode.h:222
openvdb::v9_1::tree::InternalNode::clip
void clip(const CoordBBox &, const ValueType &background)
Set all voxels that lie outside the given axis-aligned box to the background.
Definition: InternalNode.h:2014
openvdb::v9_1::tree::InternalNode::beginChildAll
ChildAllIter beginChildAll()
Definition: InternalNode.h:228
openvdb::v9_1::tree::InternalNode::getLevel
static Index getLevel()
Definition: InternalNode.h:249
openvdb::v9_1::tree::InternalNode::isValueOnAndCache
bool isValueOnAndCache(const Coord &xyz, AccessorT &) const
Definition: InternalNode.h:1601
openvdb::v9_1::tree::InternalNode::topologyDifference
void topologyDifference(const InternalNode< OtherChildNodeType, Log2Dim > &other, const ValueType &background)
Difference this node's set of active values with the active values of the other node,...
openvdb::v9_1::tree::InternalNode::probeValue
bool probeValue(const Coord &xyz, ValueType &value) const
Definition: InternalNode.h:1657
openvdb::v9_1::tree::InternalNode::setActiveState
void setActiveState(const Coord &xyz, bool on)
Set the active state of the voxel at the given coordinates but don't change its value.
Definition: InternalNode.h:1844
openvdb::v9_1::tree::InternalNode::beginValueOn
ValueOnIter beginValueOn()
Definition: InternalNode.h:238
openvdb::v9_1::tree::InternalNode::modifyValueAndCache
void modifyValueAndCache(const Coord &xyz, const ModifyOp &op, AccessorT &)
Apply a functor to the value of the voxel at the given coordinates and mark the voxel as active....
Definition: InternalNode.h:1926
openvdb::v9_1::tree::InternalNode::topologyUnion
void topologyUnion(const InternalNode< OtherChildNodeType, Log2Dim > &other, const bool preserveTiles=false)
Union this branch's set of active values with the other branch's active values. The value type of the...
openvdb::v9_1::tree::InternalNode::cbeginChildOff
ChildOffCIter cbeginChildOff() const
Definition: InternalNode.h:221
openvdb::v9_1::tree::InternalNode::beginChildOff
ChildOffIter beginChildOff()
Definition: InternalNode.h:227
openvdb::v9_1::tree::InternalNode::onVoxelCount
Index64 onVoxelCount() const
Definition: InternalNode.h:1079
openvdb::v9_1::tree::InternalNode::beginChildOff
ChildOffCIter beginChildOff() const
Definition: InternalNode.h:224
openvdb::v9_1::tree::InternalNode::coordToOffset
static Index coordToOffset(const Coord &xyz)
Return the linear table offset of the given global or local coordinates.
Definition: InternalNode.h:3124
openvdb::v9_1::tree::InternalNode::addTileAndCache
void addTileAndCache(Index level, const Coord &xyz, const ValueType &, bool state, AccessorT &)
Same as addTile() except, if necessary, update the accessor with pointers to the nodes along the path...
Definition: InternalNode.h:1460
openvdb::v9_1::tree::InternalNode::LeafNodeType
typename ChildNodeType::LeafNodeType LeafNodeType
Definition: InternalNode.h:37
openvdb::v9_1::tree::InternalNode::setValueOff
void setValueOff(const Coord &xyz)
Mark the voxel at the given coordinates as inactive but don't change its value.
Definition: InternalNode.h:1685
openvdb::v9_1::tree::InternalNode::probeNodeAndCache
NodeType * probeNodeAndCache(const Coord &xyz, AccessorT &)
Same as probeNode() except, if necessary, update the accessor with pointers to the nodes along the pa...
openvdb::v9_1::tree::InternalNode::writeBuffers
void writeBuffers(std::ostream &, bool toHalf=false) const
Definition: InternalNode.h:3058
openvdb::v9_1::tree::InternalNode::cbeginValueOn
ValueOnCIter cbeginValueOn() const
Definition: InternalNode.h:230
openvdb::v9_1::tree::InternalNode::ValueType
typename ChildNodeType::ValueType ValueType
Definition: InternalNode.h:38
openvdb::v9_1::tree::InternalNode::leafCount
Index32 leafCount() const
Definition: InternalNode.h:1033
openvdb::v9_1::tree::InternalNode::probeLeaf
const LeafNodeType * probeLeaf(const Coord &xyz) const
openvdb::v9_1::tree::InternalNode::resetChildNode
void resetChildNode(Index i, ChildNodeType *child)
Definition: InternalNode.h:3254
openvdb::v9_1::tree::InternalNode::childCount
Index32 childCount() const
Definition: InternalNode.h:1071
openvdb::v9_1::tree::InternalNode::getValueLevel
Index getValueLevel(const Coord &xyz) const
Return the level of the tree (0 = leaf) at which the value at the given coordinates resides.
Definition: InternalNode.h:1635
openvdb::v9_1::tree::InternalNode::onTileCount
Index64 onTileCount() const
Definition: InternalNode.h:1126
openvdb::v9_1::tree::InternalNode::modifyValue
void modifyValue(const Coord &xyz, const ModifyOp &op)
Apply a functor to the value of the voxel at the given coordinates and mark the voxel as active.
Definition: InternalNode.h:1898
openvdb::v9_1::tree::InternalNode::visitActiveBBox
void visitActiveBBox(BBoxOp &) const
Calls the templated functor BBoxOp with bounding box information for all active tiles and leaf nodes ...
Definition: InternalNode.h:2892
openvdb::v9_1::tree::InternalNode::hasSameTopology
bool hasSameTopology(const InternalNode< OtherChildNodeType, OtherLog2Dim > *other) const
Return true if the given tree branch has the same node and active value topology as this tree branch ...
Definition: InternalNode.h:3240
openvdb::v9_1::tree::InternalNode::setValueMask
void setValueMask(Index n, bool on)
Definition: InternalNode.h:786
openvdb::v9_1::tree::InternalNode::offVoxelCount
Index64 offVoxelCount() const
Definition: InternalNode.h:1091
openvdb::v9_1::tree::InternalNode::MaskOffIterator
typename NodeMaskType::OffIterator MaskOffIterator
Definition: InternalNode.h:115
openvdb::v9_1::tree::InternalNode::isConstant
bool isConstant(ValueType &firstValue, bool &state, const ValueType &tolerance=zeroVal< ValueType >()) const
Definition: InternalNode.h:1529
openvdb::v9_1::tree::InternalNode::touchLeaf
LeafNodeType * touchLeaf(const Coord &xyz)
Return the leaf node that contains voxel (x, y, z). If no such node exists, create one,...
Definition: InternalNode.h:1496
openvdb::v9_1::tree::InternalNode::denseFill
void denseFill(const CoordBBox &bbox, const ValueType &value, bool active=true)
Set all voxels within a given axis-aligned box to a constant value and ensure that those voxels are a...
Definition: InternalNode.h:2120
openvdb::v9_1::tree::InternalNode::NUM_VALUES
static const Index NUM_VALUES
Definition: InternalNode.h:47
openvdb::v9_1::tree::InternalNode::mNodes
UnionType mNodes[NUM_VALUES]
Definition: InternalNode.h:821
openvdb::v9_1::tree::InternalNode::negate
void negate()
Change the sign of all the values represented in this node and its child nodes.
Definition: InternalNode.h:2318
openvdb::v9_1::tree::InternalNode::readTopology
void readTopology(std::istream &, bool fromHalf=false)
Definition: InternalNode.h:2238
openvdb::v9_1::tree::InternalNode::offsetToGlobalCoord
Coord offsetToGlobalCoord(Index n) const
Return the global coordinates for a linear table offset.
Definition: InternalNode.h:3134
openvdb::v9_1::tree::InternalNode::beginChildAll
ChildAllCIter beginChildAll() const
Definition: InternalNode.h:225
openvdb::v9_1::tree::InternalNode::setActiveStateAndCache
void setActiveStateAndCache(const Coord &xyz, bool on, AccessorT &)
Definition: InternalNode.h:1863
openvdb::v9_1::tree::InternalNode::setValuesOn
void setValuesOn()
Mark all values (both tiles and voxels) as active.
Definition: InternalNode.h:1886
openvdb::v9_1::tree::InternalNode::makeChildNodeEmpty
void makeChildNodeEmpty(Index n, const ValueType &value)
Definition: InternalNode.h:3295
openvdb::v9_1::tree::InternalNode::setTransientData
void setTransientData(Index32 transientData)
Set the transient data value.
Definition: InternalNode.h:275
openvdb::v9_1::tree::InternalNode::BuildType
typename ChildNodeType::BuildType BuildType
Definition: InternalNode.h:39
openvdb::v9_1::tree::InternalNode::touchLeafAndCache
LeafNodeType * touchLeafAndCache(const Coord &xyz, AccessorT &)
Same as touchLeaf() except, if necessary, update the accessor with pointers to the nodes along the pa...
openvdb::v9_1::tree::InternalNode::stealNodes
void stealNodes(ArrayT &array, const ValueType &value, bool state)
Steals all nodes of a certain type from the tree and adds them to a container with the following API:
Definition: InternalNode.h:3193
openvdb::v9_1::tree::InternalNode::getChildNode
ChildNodeType * getChildNode(Index n)
Returns a pointer to the child node at the linear offset n.
Definition: InternalNode.h:3302
openvdb::v9_1::tree::InternalNode::MaskOnIterator
typename NodeMaskType::OnIterator MaskOnIterator
Definition: InternalNode.h:114
openvdb::v9_1::tree::InternalNode::probeLeafAndCache
const LeafNodeType * probeLeafAndCache(const Coord &xyz, AccessorT &acc) const
openvdb::v9_1::tree::InternalNode::probeValueAndCache
bool probeValueAndCache(const Coord &xyz, ValueType &value, AccessorT &) const
Definition: InternalNode.h:1670
openvdb::v9_1::tree::InternalNode::doVisit2
static void doVisit2(NodeT &, OtherChildAllIterT &, VisitorOp &, bool otherIsLHS)
Definition: InternalNode.h:3033
openvdb::v9_1::tree::InternalNode::addChild
bool addChild(ChildNodeType *child)
Add the given child node at this level deducing the offset from it's origin. If a child node with thi...
Definition: InternalNode.h:1402
openvdb::v9_1::tree::InternalNode::evalActiveBoundingBox
void evalActiveBoundingBox(CoordBBox &bbox, bool visitVoxels=true) const
Expand the specified bounding box so that it includes the active tiles of this internal node as well ...
Definition: InternalNode.h:1150
openvdb::v9_1::tree::InternalNode::isEmpty
bool isEmpty() const
Definition: InternalNode.h:302
openvdb::v9_1::tree::InternalNode::getTable
const UnionType * getTable() const
Definition: InternalNode.h:781
openvdb::v9_1::tree::InternalNode::getNodeLog2Dims
static void getNodeLog2Dims(std::vector< Index > &dims)
Populated an std::vector with the dimension of all the nodes in the branch starting with this node.
Definition: InternalNode.h:3103
openvdb::v9_1::tree::InternalNode::beginValueOff
ValueOffIter beginValueOff()
Definition: InternalNode.h:240
openvdb::v9_1::tree::InternalNode::setValueOn
void setValueOn(const Coord &xyz)
Mark the voxel at the given coordinates as active but don't change its value.
Definition: InternalNode.h:1701
openvdb::v9_1::tree::InternalNode::ChildNodeType
_ChildNodeType ChildNodeType
Definition: InternalNode.h:36
openvdb::v9_1::tree::InternalNode::offsetToLocalCoord
static void offsetToLocalCoord(Index n, Coord &xyz)
Return the local coordinates for a linear table offset, where offset 0 has coordinates (0,...
Definition: InternalNode.h:3112
openvdb::v9_1::tree::InternalNode::getValueMask
const NodeMaskType & getValueMask() const
Definition: InternalNode.h:772
openvdb::v9_1::tree::InternalNode::probeConstNode
const NodeType * probeConstNode(const Coord &xyz) const
openvdb::v9_1::tree::InternalNode::hasActiveTiles
bool hasActiveTiles() const
Return true if this node or any of its child nodes have any active tiles.
Definition: InternalNode.h:1576
openvdb::v9_1::tree::InternalNode::combine
void combine(InternalNode &other, CombineOp &)
Definition: InternalNode.h:2689
openvdb::v9_1::tree::InternalNode::getValue
const ValueType & getValue(const Coord &xyz) const
Definition: InternalNode.h:1612
openvdb::v9_1::tree::InternalNode::nodeCount
void nodeCount(std::vector< Index32 > &vec) const
Definition: InternalNode.h:1045
openvdb::v9_1::tree::InternalNode::memUsage
Index64 memUsage() const
Return the total amount of memory in bytes occupied by this node and its children.
Definition: InternalNode.h:1137
openvdb::v9_1::tree::InternalNode::unsetChildNode
ChildNodeType * unsetChildNode(Index i, const ValueType &value)
Definition: InternalNode.h:3280
openvdb::v9_1::tree::InternalNode::readBuffers
void readBuffers(std::istream &, bool fromHalf=false)
Definition: InternalNode.h:3068
openvdb::v9_1::tree::InternalNode::MaskDenseIterator
typename NodeMaskType::DenseIterator MaskDenseIterator
Definition: InternalNode.h:116
openvdb::v9_1::tree::InternalNode::modifyValueAndActiveStateAndCache
void modifyValueAndActiveStateAndCache(const Coord &xyz, const ModifyOp &op, AccessorT &)
Definition: InternalNode.h:1983
openvdb::v9_1::tree::InternalNode::beginValueAll
ValueAllCIter beginValueAll() const
Definition: InternalNode.h:237
openvdb::v9_1::tree::InternalNode::mOrigin
Coord mOrigin
Global grid index coordinates (x,y,z) of the local origin of this node.
Definition: InternalNode.h:827
openvdb::v9_1::tree::InternalNode::dim
static Index dim()
Definition: InternalNode.h:246
openvdb::v9_1::tree::InternalNode::visit2Node
void visit2Node(OtherNodeType &other, VisitorOp &)
Definition: InternalNode.h:2946
openvdb::v9_1::tree::InternalNode::isValueMaskOn
bool isValueMaskOn(Index n) const
Definition: InternalNode.h:765
openvdb::v9_1::tree::InternalNode::beginValueAll
ValueAllIter beginValueAll()
Definition: InternalNode.h:241
openvdb::v9_1::tree::InternalNode::getLastValue
const ValueType & getLastValue() const
If the last entry in this node's table is a tile, return the tile's value. Otherwise,...
Definition: InternalNode.h:2306
openvdb::v9_1::tree::IteratorBase
Base class for iterators over internal and leaf nodes.
Definition: Iterator.h:30
openvdb::v9_1::tree::NodeUnion< ValueType, ChildNodeType >
openvdb::v9_1::tree::NodeUnion::getValue
const ValueT & getValue() const
Definition: NodeUnion.h:45
openvdb::v9_1::tree::NodeUnion::getChild
ChildT * getChild() const
Definition: NodeUnion.h:42
openvdb::v9_1::tree::NodeUnion::setValue
void setValue(const ValueT &val)
Definition: NodeUnion.h:47
openvdb::v9_1::util::DenseMaskIterator
Definition: NodeMasks.h:271
openvdb::v9_1::util::NodeMask
Bit mask for the internal and leaf nodes of VDB. This is a 64-bit implementation.
Definition: NodeMasks.h:308
openvdb::v9_1::util::NodeMask::Word
Index64 Word
Definition: NodeMasks.h:316
openvdb::v9_1::util::NodeMask::toggle
void toggle(Index32 n)
Toggle the state of the nth bit.
Definition: NodeMasks.h:483
openvdb::v9_1::util::NodeMask::setOff
void setOff(Index32 n)
Set the nth bit off.
Definition: NodeMasks.h:457
openvdb::v9_1::util::NodeMask::setOn
void setOn(Index32 n)
Set the nth bit on.
Definition: NodeMasks.h:452
openvdb::v9_1::util::OffMaskIterator
Definition: NodeMasks.h:240
openvdb::v9_1::util::OnMaskIterator
Definition: NodeMasks.h:209
nanovdb::CoordBBox
BBox< Coord > CoordBBox
Definition: NanoVDB.h:1658
openvdb::v9_1::io::writeCompressedValues
void writeCompressedValues(std::ostream &os, ValueT *srcBuf, Index srcCount, const MaskT &valueMask, const MaskT &childMask, bool toHalf)
Definition: Compression.h:645
openvdb::v9_1::io::readCompressedValues
void readCompressedValues(std::istream &is, ValueT *destBuf, Index destCount, const MaskT &valueMask, bool fromHalf)
Definition: Compression.h:465
openvdb::v9_1::io::getGridBackgroundValuePtr
OPENVDB_API const void * getGridBackgroundValuePtr(std::ios_base &)
Return a pointer to the background value of the grid currently being read from or written to the give...
openvdb::v9_1::io::getFormatVersion
OPENVDB_API uint32_t getFormatVersion(std::ios_base &)
Return the file format version number associated with the given input stream.
openvdb::v9_1::logging::getLevel
Level getLevel()
Return the current logging level.
Definition: logging.h:141
openvdb::v9_1::math::negative
T negative(const T &val)
Return the unary negation of the given value.
Definition: Math.h:127
openvdb::v9_1::math::isApproxEqual
bool isApproxEqual(const Type &a, const Type &b, const Type &tolerance)
Return true if a is equal to b to within the given tolerance.
Definition: Math.h:407
openvdb::v9_1::math::isExactlyEqual
bool isExactlyEqual(const T0 &a, const T1 &b)
Return true if a is exactly equal to b.
Definition: Math.h:444
openvdb::v9_1::tools::composite::max
const std::enable_if<!VecTraits< T >::IsVec, T >::type & max(const T &a, const T &b)
Definition: Composite.h:107
openvdb::v9_1::tools::composite::min
const std::enable_if<!VecTraits< T >::IsVec, T >::type & min(const T &a, const T &b)
Definition: Composite.h:103
openvdb::v9_1::tools::anyActiveTiles
bool anyActiveTiles(const TreeT &tree, const CoordBBox &bbox)
Returns true if the bounding box intersects any of the active tiles in a tree, i.e....
Definition: FindActiveValues.h:672
openvdb::v9_1::tools::prune
void prune(TreeT &tree, typename TreeT::ValueType tolerance=zeroVal< typename TreeT::ValueType >(), bool threaded=true, size_t grainSize=1)
Reduce the memory footprint of a tree by replacing with tiles any nodes whose values are all the same...
Definition: Prune.h:335
openvdb::v9_1::tools::clip
GridType::Ptr clip(const GridType &grid, const BBoxd &bbox, bool keepInterior=true)
Clip the given grid against a world-space bounding box and return a new grid containing the result.
Definition: Clip.h:352
openvdb::v9_1::tools::copyToDense
void copyToDense(const GridOrTreeT &sparse, DenseT &dense, bool serial=false)
Populate a dense grid with the values of voxels from a sparse grid, where the sparse grid intersects ...
Definition: Dense.h:421
openvdb::v9_1::tools::memUsage
Index64 memUsage(const TreeT &tree, bool threaded=true)
Return the total amount of memory in bytes occupied by this tree.
Definition: Count.h:493
openvdb::v9_1::Index
Index32 Index
Definition: Types.h:54
openvdb::v9_1::Index32
uint32_t Index32
Definition: Types.h:52
openvdb::v9_1::OPENVDB_FILE_VERSION_NODE_MASK_COMPRESSION
@ OPENVDB_FILE_VERSION_NODE_MASK_COMPRESSION
Definition: version.h.in:246
openvdb::v9_1::OPENVDB_FILE_VERSION_INTERNALNODE_COMPRESSION
@ OPENVDB_FILE_VERSION_INTERNALNODE_COMPRESSION
Definition: version.h.in:237
openvdb::v9_1::Int32
int32_t Int32
Definition: Types.h:56
openvdb::v9_1::Index64
uint64_t Index64
Definition: Types.h:53
openvdb::v9_1::MERGE_ACTIVE_STATES
@ MERGE_ACTIVE_STATES
Definition: Types.h:468
openvdb::v9_1::MERGE_NODES
@ MERGE_NODES
Definition: Types.h:469
openvdb::v9_1::MERGE_ACTIVE_STATES_AND_NODES
@ MERGE_ACTIVE_STATES_AND_NODES
Definition: Types.h:470
openvdb_houdini::combine
ValueType combine(const ValueType &v0, const ValueType &v1, const ValueType &v2, const openvdb::Vec3d &w)
Combine different value types.
Definition: AttributeTransferUtil.h:141
openvdb
Definition: Exceptions.h:13
Types.h
openvdb::v9_1::SwappedCombineOp
Definition: Types.h:621
openvdb::v9_1::tree::DenseIteratorBase
Base class for dense iterators over internal and leaf nodes.
Definition: Iterator.h:179
openvdb::v9_1::tree::DenseIteratorBase::NonConstValueType
typename std::remove_const< UnsetItemT >::type NonConstValueType
Definition: Iterator.h:184
openvdb::v9_1::tree::InternalNode::ChildIter
Definition: InternalNode.h:129
openvdb::v9_1::tree::InternalNode::ChildIter::ChildIter
ChildIter(const MaskIterT &iter, NodeT *parent)
Definition: InternalNode.h:131
openvdb::v9_1::tree::InternalNode::ChildIter::ChildIter
ChildIter()
Definition: InternalNode.h:130
openvdb::v9_1::tree::InternalNode::ChildIter::getItem
ChildT & getItem(Index pos) const
Definition: InternalNode.h:134
openvdb::v9_1::tree::InternalNode::ChildIter::setItem
void setItem(Index pos, const ChildT &c) const
Definition: InternalNode.h:141
openvdb::v9_1::tree::InternalNode::ChildOff
Definition: InternalNode.h:120
openvdb::v9_1::tree::InternalNode::ChildOn
Definition: InternalNode.h:120
openvdb::v9_1::tree::InternalNode::DeepCopy
Definition: InternalNode.h:891
openvdb::v9_1::tree::InternalNode::DeepCopy::DeepCopy
DeepCopy(const OtherInternalNode *source, InternalNode *target)
Definition: InternalNode.h:892
openvdb::v9_1::tree::InternalNode::DeepCopy::t
InternalNode * t
Definition: InternalNode.h:906
openvdb::v9_1::tree::InternalNode::DeepCopy::s
const OtherInternalNode * s
Definition: InternalNode.h:905
openvdb::v9_1::tree::InternalNode::DeepCopy::operator()
void operator()(const tbb::blocked_range< Index > &r) const
Definition: InternalNode.h:896
openvdb::v9_1::tree::InternalNode::DenseIter
Definition: InternalNode.h:172
openvdb::v9_1::tree::InternalNode::DenseIter::DenseIter
DenseIter(const MaskDenseIterator &iter, NodeT *parent)
Definition: InternalNode.h:177
openvdb::v9_1::tree::InternalNode::DenseIter::unsetItem
void unsetItem(Index pos, const ValueT &value) const
Definition: InternalNode.h:198
openvdb::v9_1::tree::InternalNode::DenseIter::setItem
void setItem(Index pos, ChildT *child) const
Definition: InternalNode.h:192
openvdb::v9_1::tree::InternalNode::DenseIter::DenseIter
DenseIter()
Definition: InternalNode.h:176
openvdb::v9_1::tree::InternalNode::DenseIter::getItem
bool getItem(Index pos, ChildT *&child, NonConstValueT &value) const
Definition: InternalNode.h:180
openvdb::v9_1::tree::InternalNode::DenseIter::NonConstValueT
typename BaseT::NonConstValueType NonConstValueT
Definition: InternalNode.h:174
openvdb::v9_1::tree::InternalNode::SameConfiguration
SameConfiguration<OtherNodeType>::value is true if and only if OtherNodeType is the type of an Intern...
Definition: InternalNode.h:64
openvdb::v9_1::tree::InternalNode::TopologyCopy1
Definition: InternalNode.h:941
openvdb::v9_1::tree::InternalNode::TopologyCopy1::TopologyCopy1
TopologyCopy1(const OtherInternalNode *source, InternalNode *target, const ValueType &background)
Definition: InternalNode.h:942
openvdb::v9_1::tree::InternalNode::TopologyCopy1::t
InternalNode * t
Definition: InternalNode.h:958
openvdb::v9_1::tree::InternalNode::TopologyCopy1::s
const OtherInternalNode * s
Definition: InternalNode.h:957
openvdb::v9_1::tree::InternalNode::TopologyCopy1::b
const ValueType & b
Definition: InternalNode.h:959
openvdb::v9_1::tree::InternalNode::TopologyCopy1::operator()
void operator()(const tbb::blocked_range< Index > &r) const
Definition: InternalNode.h:947
openvdb::v9_1::tree::InternalNode::TopologyCopy2
Definition: InternalNode.h:980
openvdb::v9_1::tree::InternalNode::TopologyCopy2::offV
const ValueType & offV
Definition: InternalNode.h:998
openvdb::v9_1::tree::InternalNode::TopologyCopy2::TopologyCopy2
TopologyCopy2(const OtherInternalNode *source, InternalNode *target, const ValueType &offValue, const ValueType &onValue)
Definition: InternalNode.h:981
openvdb::v9_1::tree::InternalNode::TopologyCopy2::t
InternalNode * t
Definition: InternalNode.h:997
openvdb::v9_1::tree::InternalNode::TopologyCopy2::s
const OtherInternalNode * s
Definition: InternalNode.h:996
openvdb::v9_1::tree::InternalNode::TopologyCopy2::operator()
void operator()(const tbb::blocked_range< Index > &r) const
Definition: InternalNode.h:986
openvdb::v9_1::tree::InternalNode::TopologyDifference::A
Definition: InternalNode.h:2627
openvdb::v9_1::tree::InternalNode::TopologyDifference::A::operator()
void operator()(W &tC, const W &sC, const W &sV, const W &tV) const
Definition: InternalNode.h:2627
openvdb::v9_1::tree::InternalNode::TopologyDifference::B
Definition: InternalNode.h:2630
openvdb::v9_1::tree::InternalNode::TopologyDifference::B::operator()
void operator()(W &tV, const W &sC, const W &sV, const W &tC) const
Definition: InternalNode.h:2630
openvdb::v9_1::tree::InternalNode::TopologyDifference
Definition: InternalNode.h:2625
openvdb::v9_1::tree::InternalNode::TopologyDifference::TopologyDifference
TopologyDifference(const OtherInternalNode *source, InternalNode *target, const ValueType &background)
Definition: InternalNode.h:2633
openvdb::v9_1::tree::InternalNode::TopologyDifference::W
typename NodeMaskType::Word W
Definition: InternalNode.h:2626
openvdb::v9_1::tree::InternalNode::TopologyDifference::t
InternalNode * t
Definition: InternalNode.h:2669
openvdb::v9_1::tree::InternalNode::TopologyDifference::s
const OtherInternalNode * s
Definition: InternalNode.h:2668
openvdb::v9_1::tree::InternalNode::TopologyDifference::b
const ValueType & b
Definition: InternalNode.h:2670
openvdb::v9_1::tree::InternalNode::TopologyDifference::operator()
void operator()(const tbb::blocked_range< Index > &r) const
Definition: InternalNode.h:2647
openvdb::v9_1::tree::InternalNode::TopologyIntersection::A
Definition: InternalNode.h:2577
openvdb::v9_1::tree::InternalNode::TopologyIntersection::A::operator()
void operator()(W &tC, const W &sC, const W &sV, const W &tV) const
Definition: InternalNode.h:2577
openvdb::v9_1::tree::InternalNode::TopologyIntersection
Definition: InternalNode.h:2575
openvdb::v9_1::tree::InternalNode::TopologyIntersection::TopologyIntersection
TopologyIntersection(const OtherInternalNode *source, InternalNode *target, const ValueType &background)
Definition: InternalNode.h:2580
openvdb::v9_1::tree::InternalNode::TopologyIntersection::W
typename NodeMaskType::Word W
Definition: InternalNode.h:2576
openvdb::v9_1::tree::InternalNode::TopologyIntersection::t
InternalNode * t
Definition: InternalNode.h:2609
openvdb::v9_1::tree::InternalNode::TopologyIntersection::s
const OtherInternalNode * s
Definition: InternalNode.h:2608
openvdb::v9_1::tree::InternalNode::TopologyIntersection::b
const ValueType & b
Definition: InternalNode.h:2610
openvdb::v9_1::tree::InternalNode::TopologyIntersection::operator()
void operator()(const tbb::blocked_range< Index > &r) const
Definition: InternalNode.h:2592
openvdb::v9_1::tree::InternalNode::TopologyUnion::A
Definition: InternalNode.h:2525
openvdb::v9_1::tree::InternalNode::TopologyUnion::A::operator()
void operator()(W &tV, const W &sV, const W &tC) const
Definition: InternalNode.h:2525
openvdb::v9_1::tree::InternalNode::TopologyUnion
Definition: InternalNode.h:2523
openvdb::v9_1::tree::InternalNode::TopologyUnion::W
typename NodeMaskType::Word W
Definition: InternalNode.h:2524
openvdb::v9_1::tree::InternalNode::TopologyUnion::t
InternalNode * t
Definition: InternalNode.h:2560
openvdb::v9_1::tree::InternalNode::TopologyUnion::mPreserveTiles
const bool mPreserveTiles
Definition: InternalNode.h:2561
openvdb::v9_1::tree::InternalNode::TopologyUnion::s
const OtherInternalNode * s
Definition: InternalNode.h:2559
openvdb::v9_1::tree::InternalNode::TopologyUnion::operator()
void operator()(const tbb::blocked_range< Index > &r) const
Definition: InternalNode.h:2541
openvdb::v9_1::tree::InternalNode::TopologyUnion::TopologyUnion
TopologyUnion(const OtherInternalNode *source, InternalNode *target, const bool preserveTiles)
Definition: InternalNode.h:2528
openvdb::v9_1::tree::InternalNode::ValueConverter
ValueConverter<T>::Type is the type of an InternalNode having the same child hierarchy and dimensions...
Definition: InternalNode.h:55
openvdb::v9_1::tree::InternalNode::ValueIter
Definition: InternalNode.h:150
openvdb::v9_1::tree::InternalNode::ValueIter::modifyItem
void modifyItem(Index pos, const ModifyOp &op) const
Definition: InternalNode.h:162
openvdb::v9_1::tree::InternalNode::ValueIter::ValueIter
ValueIter(const MaskIterT &iter, NodeT *parent)
Definition: InternalNode.h:152
openvdb::v9_1::tree::InternalNode::ValueIter::getItem
const ValueT & getItem(Index pos) const
Definition: InternalNode.h:155
openvdb::v9_1::tree::InternalNode::ValueIter::ValueIter
ValueIter()
Definition: InternalNode.h:151
openvdb::v9_1::tree::InternalNode::ValueIter::setItem
void setItem(Index pos, const ValueT &v) const
Definition: InternalNode.h:158
openvdb::v9_1::tree::InternalNode::ValueOff
Definition: InternalNode.h:119
openvdb::v9_1::tree::InternalNode::ValueOn
Definition: InternalNode.h:119
openvdb::v9_1::tree::InternalNode::VoxelizeActiveTiles
Definition: InternalNode.h:2336
openvdb::v9_1::tree::InternalNode::VoxelizeActiveTiles::mNode
InternalNode * mNode
Definition: InternalNode.h:2357
openvdb::v9_1::tree::InternalNode::VoxelizeActiveTiles::operator()
void operator()(const tbb::blocked_range< Index > &r) const
Definition: InternalNode.h:2344
openvdb::v9_1::tree::InternalNode::VoxelizeActiveTiles::VoxelizeActiveTiles
VoxelizeActiveTiles(InternalNode &node)
Definition: InternalNode.h:2337
openvdb::v9_1::tree::SameInternalConfig
Definition: InternalNode.h:842
openvdb::v9_1::tree::SparseIteratorBase
Base class for sparse iterators over internal and leaf nodes.
Definition: Iterator.h:115
OPENVDB_VERSION_NAME
#define OPENVDB_VERSION_NAME
The version namespace name for this library version.
Definition: version.h.in:116
OPENVDB_USE_VERSION_NAMESPACE
#define OPENVDB_USE_VERSION_NAMESPACE
Definition: version.h.in:202