PSScaling Struct Reference

Provide a scaling through a rectangle in source space and a corresponding rectangle in destination space. More...

#include <PIGeneral.h>

Data Fields
VRect	sourceRect
	The source rectangle for scaling.
VRect	destinationRect
	The destination rectangle for scaling.

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Detailed Description

Provide a scaling through a rectangle in source space and a corresponding rectangle in destination space.

Equal rectangles result in a direct, unscaled, mapping. Unequal rectangles can be used to up- or down-sample.

For example, if sourceRect is a 100-pixel square in source space:

sourceRect.top = 0;  sourceRect.left = 0;
sourceRect.bottom = 100;  sourceRect.right = 100;

and destinationRect is a 50-pixel square in destination space:

destinationRect.top = 0;  destinationRect.left = 0;
destinationRect.bottom = 50;  destinationRect.right = 50;

the scaling indicates to down-sample the image by half.

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Field Documentation

VRect PSScaling::sourceRect

The source rectangle for scaling.

VRect PSScaling::destinationRect

The destination rectangle for scaling.

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The documentation for this struct was generated from the following file:

• PIGeneral.h