4.8. Perspective

Figura 13.120. 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. Attivazione dello strumento

You can access to 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. Opzioni

Figura 13.121. «Perspective» tool options

Perspective tool options

Normalmente, le opzioni degli strumenti vengono mostrate in una finestra agganciata al pannello degli strumenti, appena si attiva lo strumento. Se queste non ci sono, è possibile accedervi dalla barra del menu immagine tramite FinestrePannelli agganciabiliOpzioni strumenti che apre la finestra delle opzioni dello strumento selezionato.

Transform; Interpolation; Direction; Clipping; Preview
[Nota] Nota

These options are described in Transform tools common options.

4.8.3.  The Information window for perspective transformation

Figura 13.122.  The dialog window of the «Perspective» tool

The dialog window of the Perspective tool

Matrix

You can get a small knowledge about matrices in the Sezione 8.2, «Convolution Matrix».