4.2. Alineación
| 4. Herramientas de transformación |

### 4.2. Alineación

Figura 14.117. The Align tool in toolbox

The Align tool is useful to align the image layers with various image objects. When this tool is selected, the mouse pointer turns to a small hand. By clicking on an element of a layer in the image, you choose the layer which will be moved (with Shift + click, you can choose several layers to be aligned); this focused layer has small squares in corners and is called source. Then buttons in the dialog become active (they remain active during all the GIMP session): they allow you to select the target, i.e other layer, selection, path, the source will be aligned with.

#### 4.2.1. Activar la herramienta

Puede activar la herramienta de alineación de varias maneras :

- from the image-menu, through: Tools → Transform Tools → Align,

- by clicking on the tool icon: in the toolbox,

- usando el atajo de teclado Q.

#### 4.2.2. Teclas modificadoras (predeterminadas)

Desplazar

  Puede seleccionar varias capas manteniendo pulsada Mayús cuando pulsa sobre las capas.

  | Sugerencia
  A veces, es más fácil elegir múltiples capas usando la selección elástica: pulse fuera de una región rectangular imaginaria que cubra las capas que se quieren elegir. Después, arrastre fuera de esa región moviendo el ratón y suelte el botón. Ahora cada capa, que está completamente dentro de el rectángulo arrastrado, está seleccionada. Tenga en cuenta que ahora no hay “primer elemento” objetivo sobre el que puedan alinearse las capas seleccionadas.

#### 4.2.3. Opciones de herramienta

Figura 14.118. Opciones de herramienta para la herramienta de alineación

Normalmente, las opciones de herramienta se muestran en una ventana unida por debajo a la caja de herramientas, tan pronto como se activa una herramienta. Si no están, se puede acceder a ellas desde la barra del menú de la imagen a través de Ventanas → Diálogos empotrables → Opciones de herramienta que abre la ventana de las opciones de la herramienta seleccionada.

Alineación
  Relativo a:

    In this drop down list, you select the target, the image object the layer will be aligned with.

    - Primer elemento: el primer elemento seleccionado al seleccionar capas múltiples manteniendo pulsada la tecla Mayús. Tenga en cuenta que no hay “primer elemento” cuando selecciona varias capas usando la selección elástica.

    - Imagen: la imagen es el objetivo.

    - Selection: the selection is the target.

    - Active layer: the active layer, in the layer dialog, is the target.

    - Active Channel: the active channel, containing a selection you made before, is the target.

    - Active Path: the active path is the target.

  Align buttons

    These buttons become active when a target is selected.

    - Align left edge of target: to align left edge of source with left edge of target.

    - Align center of target: to align center of source on the vertical middle line of target.

    - : Align right edge of target: to align right edge of source with right edge of target.

    - : Align top edge of target: to align top edge of source with top edge of target.

    - : Align middle of target: to align center of source on the horizontal middle line of target.

    - : Align bottom edge of target: to align bottom edge of source with bottom edge of target.

  Ejemplo

    An image with a selection, layer #1 (background) is active, layer #2 is cropped to content, layer #3 is a text layer.

    We click on the yellow circle: layer #2 becomes the source. We want to send this source to the middle of the selection: the Relative to option is set to “Selection”.

    Align center of target clicked

    Align middle of target clicked

Distribuir
  Distribuir botones

    These options are used when you have several targets and want to arrange them. Here, layers selected with Shift + Click are called “targets” . But they are actually sources. “Relative to” options are active to set the target. These transformations are usually relative to “Image”.

    These options work as Align options, but you can can add an offset and new options are available to distribute sources evenly.

    - : Distribute left edges of targets: to distribute left edges of sources on the left edge of the target (the image).

    - : Distribute horizontal centers of targets: to distribute centers of sources with center of the target horizontally.

    - : Distribute right edges of targets: to distribute right edges of sources on right edge of the target.

    - : Distribute targets evenly in the horizontal: to distribute sources evenly horizontally.

    - : Distribute left edges of targets: to distribute top edges of sources on top edge of target.

    - : Distribute vertical centers of targets: to distribute centers of sources with center of target.

    - : Distribute bottom edges of targets: to distribute bottom edges of sources with bottom edge of target.

    - : Distribute targets evenly in the vertical: to distribute sources evenly vertically.

  Desplazamiento

    This offset can be positive or negative and is expressed in pixels. Distribute add it to the left edges, horizontal centers, right edges, top edges, vertical centers, or bottoms of sources.

  Figura 14.119. Example for the “Distribute” commands

  Base image: three layers. (Distribute right edges of targets) will be used.

  Active layer is yellow (target). Offset = 0: all layers are aligned on the the right edge of the yellow layer.
  Active layer is yellow. Offset = 10:
New feature in GIMP-2.10

  GIMP-2.10 shows relative coordinates (horizontal or vertical) when moving guides and sample points. Coordinates are relative to the start of moving.

#### 4.2.4. Un ejemplo práctico para “Distribuir”

Figura 14.120. Origen

Four text layers, with same size. We want to align them at center of image.

We select them as sources with Shift + Click.

The default target (Relative to) is “Image”. Offset = 0. We used the (Distribute vertical centers of targets) command.

After using the (Distribute targets evenly in the horizontal) with offset = 5.

#### 4.2.5. Alineación usando la selección elástica

Figura 14.121. Alineación usando la selección elástica

Se pulsa desde la izquierda y arriba de la capa roja, y se arrastra una región cubriendo las capas roja y amarilla, moviendo el puntero hacia la esquina inferior derecha.

“Selection” is the reference. After a click on the button, both layers align with the left side of the selection.

4. Herramientas de transformación |  | 4.3. Mover

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