4.8. Perspectiva

Figura 14.139. Perspective tool

Perspective tool

The Perspective Tool is used to change the perspective of the active layer content, of a selection content or of a path. When you click on the image, according to the Preview type you have selected, a rectangular frame or a grid pops up around the selection (or around the whole layer if there is no selection), with a handle on each of the four corners. By moving these handles by click-and-drag, you can modify the perspective. At the same time, a Transformation information pops up, which lets you valid the transformation. At the center of the element, a circle lets you move the element by click-and-drag.

[Nota] Nota

This tool is not actually a perspective tool, as it doesn't impose perspective rules. It is better described as a distort tool.

4.8.1. Activating the Tool

You can access the Perspective tool in different ways:

  • From the image menu bar Tools/ Transform Tools Perspective,

  • By clicking the tool icon: in Toolbox,

  • By using the Shift+P key combination.

4.8.2. Options

Figura 14.140. Perspective tool options

“Perspective” tool options

Normalmente, as opções da ferramenta são exibidas assim que você ativa uma ferramenta em uma caixa localizada abaixo da caixa de ferramentas. Se isso não acontecer, você pode acessar as mesmas através do menu na janela da imagem emJanelasDiálogos de EncaixeOpções de ferramentas

Transform; Interpolation; Direction; Clipping; Show image preview; Guides
[Nota] Nota

Essas opções estão descritas em Opções em comum das ferramentas de transformação

Constrain handles (Shift)

Constrain handles to move along edges and diagonal.

Around center (Ctrl)

Transform around the center point.

4.8.3. The Shear adjustment dialog

Figura 14.141. The Shear adjustment dialog

The Shear adjustment dialog

Matrix

The information window shows a mathematical representation of the perspective transformation. You can find more information about transformation matrices on Wikipedia.

Readjust button

With this button, new in GIMP-2.10.10, you can readjust transform handles based on the current zoom level.