4.8. Perspective

Figur 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.

[Notat] Notat

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

Figur 14.140. «Perspective» tool options

«Perspective» tool options

Normalt blir innstillingane for det valde verktøyet vist under verktøykassa. Dersom dette ikkje er tilfelle, kan du få tilgang til dei frå biletmenyen via VindaugeDialogvindaugeVerktøyinnstillingar som vil opne verktøyinnstillingane for det aktive verktøyet.

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

These options are described in Transform tools common options.

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

Figur 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.