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ShearRegion
Computes a leant region.
Syntax
C++
C#
void avl::ShearRegion ( const avl::Region& inRegion, float inShear, avl::Axis::Type inAxis, avl::Region& outRegion )
Parameters
| Name | Type | Range | Default | Description | |
|---|---|---|---|---|---|
 |
inRegion | const Region& | Input region | ||
|
inShear | float | - - |
The relative shift of each consecutive row or column | |
|
inAxis | Axis::Type | Switches between shifting rows or columns | ||
 |
outRegion | Region& | Output region |
Description
The filter ShearRegion applies basic affine transform to each regions's pixel.
Shear affine transform when X axis is selected:
\[ \left[\begin{array}{ccc} x' \\ y' \end{array} \right] = \left[\begin{array}{ccc} 1 & inShear \\ 0 & 1 \end{array} \right] \left[\begin{array}{ccc} x \\ y \end{array} \right] \]Shear affine transform when Y axis is selected:
\[ \left[\begin{array}{ccc} x' \\ y' \end{array} \right] = \left[\begin{array}{ccc} 1 & 0\\ inShear & 1 \end{array} \right] \left[\begin{array}{ccc} x \\ y \end{array} \right] \]