OpenVDB: VolumeToMesh.h File Reference

OpenVDB 3.1.0

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VolumeToMesh.h File Reference
`#include <openvdb/Platform.h>`
`#include <openvdb/tree/ValueAccessor.h>`
`#include <openvdb/util/Util.h>`
`#include <openvdb/math/Operators.h>`
`#include <openvdb/tools/Morphology.h>`
`#include <openvdb/tree/LeafManager.h>`
`#include "Prune.h"`
`#include <boost/scoped_array.hpp>`
`#include <boost/scoped_ptr.hpp>`
`#include <boost/type_traits/is_scalar.hpp>`
`#include <boost/utility/enable_if.hpp>`
`#include <tbb/blocked_range.h>`
`#include <tbb/parallel_for.h>`
`#include <tbb/parallel_reduce.h>`
`#include <vector>`
`#include <memory>`

Go to the source code of this file.

## Classes
class | PolygonPool
| Collection of quads and triangles. More...
class | VolumeToMesh
| Mesh any scalar grid that has a continuous isosurface. More...
struct | UniquePtr< T >
class | SignData< TreeT, LeafManagerT >
class | CountPoints
| Counts the total number of points per leaf, accounts for cells with multiple points. More...
class | MapPoints< Int16TreeT >
| Computes the point list indices for the index tree. More...
class | CountRegions< IntTreeT >
| Counts the total number of points per collapsed region. More...
class | GenPoints< TreeT, LeafManagerT >
class | SeamWeights< TreeT >
class | MergeVoxelRegions< TreeT, LeafManagerT >
struct | UniformPrimBuilder
struct | AdaptivePrimBuilder
class | GenPolygons< LeafManagerT, PrimBuilder >
struct | PartOp
class | PartGen< SrcTreeT >
class | GenSeamMask< TreeT, LeafManagerT >
class | TagSeamEdges< TreeT >
struct | MaskEdges< BoolTreeT >
class | FlagUsedPoints
class | RemapIndices
class | MovePoints
class | GenTopologyMask< SrcTreeT >
class | GenBoundaryMask< SrcTreeT >
class | GenTileMask< TreeT >
class | PointListCopy

## Namespaces
| openvdb
| openvdb::v3_1_0
| openvdb::v3_1_0::tools
| openvdb::v3_1_0::tools::internal

## Typedefs
typedef boost::scoped_array< openvdb::Vec3s > | PointList
| Point and primitive list types. More...
typedef boost::scoped_array< PolygonPool > | PolygonPoolList
| Point and primitive list types. More...

## Enumerations
enum | { POLYFLAG_EXTERIOR = 0x1, POLYFLAG_FRACTURE_SEAM = 0x2, POLYFLAG_SUBDIVIDED = 0x4 }
| Polygon flags, used for reference based meshing. More...
enum | { SIGNS = 0xFF, EDGES = 0xE00, INSIDE = 0x100, XEDGE = 0x200, YEDGE = 0x400, ZEDGE = 0x800, SEAM = 0x1000 }
| Bit-flags used to classify cells. More...

## Functions
template<typename GridType >
void | volumeToMesh (const GridType &grid, std::vector< Vec3s > &points, std::vector< Vec4I > &quads, double isovalue=0.0)
| Uniformly mesh any scalar grid that has a continuous isosurface. More...
template<typename GridType >
void | volumeToMesh (const GridType &grid, std::vector< Vec3s > &points, std::vector< Vec3I > &triangles, std::vector< Vec4I > &quads, double isovalue=0.0, double adaptivity=0.0)
| Adaptively mesh any scalar grid that has a continuous isosurface. More...
Vec3d | findFeaturePoint (const std::vector< Vec3d > &points, const std::vector< Vec3d > &normals)
| Given a set of tangent elements, `points` with corresponding `normals`, this method returns the intersection point of all tangent elements. More...
bool | isPlanarQuad (const Vec3d &p0, const Vec3d &p1, const Vec3d &p2, const Vec3d &p3, double epsilon=0.001)
template<typename AccessorT >
unsigned char | evalCellSigns (const AccessorT &accessor, const Coord &ijk, typename AccessorT::ValueType iso)
| General method that computes the cell-sign configuration at the given `ijk` coordinate. More...
template<typename LeafT >
unsigned char | evalCellSigns (const LeafT &leaf, const Index offset, typename LeafT::ValueType iso)
| Leaf node optimized method that computes the cell-sign configuration at the given local `offset`. More...
template<class AccessorT >
void | correctCellSigns (unsigned char &signs, unsigned char face, const AccessorT &acc, Coord ijk, typename AccessorT::ValueType iso)
| Used to correct topological ambiguities related to two adjacent cells that share an ambiguous face. More...
template<class AccessorT >
bool | isNonManifold (const AccessorT &accessor, const Coord &ijk, typename AccessorT::ValueType isovalue, const int dim)
template<class LeafType >
void | mergeVoxels (LeafType &leaf, const Coord &start, int dim, int regionId)
template<class LeafType >
bool | isMergable (LeafType &leaf, const Coord &start, int dim, typename LeafType::ValueType::value_type adaptivity)
double | evalRoot (double v0, double v1, double iso)
template<typename LeafT >
void | collectCornerValues (const LeafT &leaf, const Index offset, std::vector< double > &values)
| Extracts the eight corner values for leaf inclusive cells. More...
template<typename AccessorT >
void | collectCornerValues (const AccessorT &acc, const Coord &ijk, std::vector< double > &values)
| Extracts the eight corner values for a cell starting at the given coordinate. More...
Vec3d | computePoint (const std::vector< double > &values, unsigned char signs, unsigned char edgeGroup, double iso)
| Computes the average cell point for a given edge group. More...
int | computeMaskedPoint (Vec3d &avg, const std::vector< double > &values, unsigned char signs, unsigned char signsMask, unsigned char edgeGroup, double iso)
| Computes the average cell point for a given edge group, ignoring edge samples present in the `signsMask` configuration. More...
Vec3d | computeWeightedPoint (const Vec3d &p, const std::vector< double > &values, unsigned char signs, unsigned char edgeGroup, double iso)
| Computes the average cell point for a given edge group, by computing convex weights based on the distance from the sample point `p`. More...
void | computeCellPoints (std::vector< Vec3d > &points, const std::vector< double > &values, unsigned char signs, double iso)
| Computes the average cell points defined by the sign configuration `signs` and the given corner values `values`. More...
int | matchEdgeGroup (unsigned char groupId, unsigned char lhsSigns, unsigned char rhsSigns)
| Given a sign configuration `lhsSigns` and an edge group `groupId`, finds the corresponding edge group in a different sign configuration `rhsSigns`. Returns -1 if no match is found. More...
void | computeCellPoints (std::vector< Vec3d > &points, std::vector< bool > &weightedPointMask, const std::vector< double > &lhsValues, const std::vector< double > &rhsValues, unsigned char lhsSigns, unsigned char rhsSigns, double iso, size_t pointIdx, const boost::scoped_array< uint32_t > &seamPoints)
| Computes the average cell points defined by the sign configuration `signs` and the given corner values `values`. Combines data from two different level sets to eliminate seam lines when meshing fractured segments. More...
template<typename SignAccT , typename IdxAccT , typename PrimBuilder >
void | constructPolygons (Int16 flags, Int16 refFlags, const Vec4i &offsets, const Coord &ijk, const SignAccT &signAcc, const IdxAccT &idxAcc, PrimBuilder &mesher, Index32 pointListSize)
template<class DistTreeT , class SignTreeT , class IdxTreeT >
void | tileData (const DistTreeT &distTree, SignTreeT &signTree, IdxTreeT &idxTree, double iso)
template<typename LeafManagerT >
bool | needsActiveVoxePadding (const LeafManagerT &leafs, double iso, double voxelSize)
template<typename GridType >
boost::enable_if< boost::is_scalar< typename GridType::ValueType >, void >::type | doVolumeToMesh (const GridType &grid, std::vector< Vec3s > &points, std::vector< Vec3I > &triangles, std::vector< Vec4I > &quads, double isovalue, double adaptivity)
template<typename GridType >
boost::disable_if< boost::is_scalar< typename GridType::ValueType >, void >::type | doVolumeToMesh (const GridType &, std::vector< Vec3s > &, std::vector< Vec3I > &, std::vector< Vec4I > &, double, double)

## Variables
const bool | sAdaptable [256]
| Used to quickly determine if a given cell is adaptable. More...
const unsigned char | sAmbiguousFace [256]
| Contains the ambiguous face index for certain cell configuration. More...
const unsigned char | sEdgeGroupTable [256][13]
| Lookup table for different cell sign configurations. The first entry specifies the total number of points that need to be generated inside a cell and the remaining 12 entries indicate different edge groups. More...
enum | { MASK_FIRST_10_BITS = 0x000003FF, MASK_DIRTY_BIT = 0x80000000, MASK_INVALID_BIT = 0x40000000 }
| Utility methods for point quantization. More...
uint32_t | packPoint (const Vec3d &v)
| Utility methods for point quantization. More...
Vec3d | unpackPoint (uint32_t data)
| Utility methods for point quantization. More...