include/core/SkMatrix.h - Issue 13521006: First pass at Rect Effect

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Unified Diff: include/core/SkMatrix.h

Issue 13521006: First pass at Rect Effect (Closed) Base URL: http://skia.googlecode.com/svn/trunk/

Patch Set: renamed isOrthogonal to preservesRightAngles Created 7 years, 8 months ago

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Index: include/core/SkMatrix.h

===================================================================

--- include/core/SkMatrix.h (revision 8570)

+++ include/core/SkMatrix.h (working copy)

@@ -90,6 +90,12 @@

bool isSimilarity(SkScalar tol = SK_ScalarNearlyZero) const;

+ /** Returns true if the matrix contains only translation, rotation or scale

+ (non-uniform scale is allowed).

+ Returns false if other transformation types are included or is degenerate

+ */

+ bool preservesRightAngles(SkScalar tol = SK_ScalarNearlyZero) const;

enum {

kMScaleX,

kMSkewX,

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