4.5. Shear Tool

Shear tool is used to shift one part of an image, a layer, a selection or a path to a direction and the other part to the opposite direction. For instance, a horizontal shearing will shift the upper part to the right and the lower part to the left. A rectangle becomes a diamond. This is not a rotation: the image is distorted. To use this tool after selecting, click on the image or the selection: a grid is surperimposed and the Shearing Information dialog is opened. By dragging the mouse pointer on the image you distort the image, horizontally by default (x direction). To shear vertically press Shift and click on the grid (this operation is not well perfected). When you are satisfied, click on the Shear button in the info dialog to validate.

Activate Tool

  • The Shear Tool can be called in the following order, from the image-menu: Tools/ Transform Tools/Shear .

  • The Tool can also be called by clicking the tool icon:

Key modifiers (Defaults)

Shortcut

The Shift-s key combination will change the active tool to Shear.

Options

Overview

The available tool options for the Shear Tool can be accessed by double clicking the Shear Tool icon.

Affect

The shear can affect the Layer, the Selection, and the Path differently. These three buttons associate the remainder of the options to one of those three elements.

Transform Direction

Forward (Traditional): performs transformation in grid moving direction.

Backward (Corrective): performs transformation in reverse grid moving direction.

Interpolation

The Interpolation drop-down list allows you to choose the quality of the transformation. For more information about the different methods that can be employed, see the glossary entry Interpolation.

Clip Result

This option will clip the rotated layer to the original layer size.

Grid Options

The three available grid options are used to change thevisual display of the rotation grid.

Don't Show Grid will display only the outline of the rotation rectangle.

Number of Grid Lines will allow control over the total number of displayed grid lines. Use the Density slider to set the number of grid lines.

Grid Line Spacing allows control overthe distance between the grid lines. Use the Density slider to set the distance.