#i97509# optimized createRotateAroundPoint

1 files changed, 12 insertions, 3 deletions

diff --git a/basegfx/source/matrix/b2dhommatrixtools.cxx b/basegfx/source/matrix/b2dhommatrixtools.cxx
index c9c3180d3e4a..2c71193f6352 100644
--- a/basegfx/source/matrix/b2dhommatrixtools.cxx
+++ b/basegfx/source/matrix/b2dhommatrixtools.cxx
@@ -354,9 +354,18 @@ namespace basegfx
 
             if(!fTools::equalZero(fRadiant))
             {
-                aRetval = createTranslateB2DHomMatrix(-fPointX, -fPointY);
-                aRetval.rotate(fRadiant);
-                aRetval.translate(fPointX, fPointY);
+                double fSin(0.0);
+                double fCos(1.0);
+
+                createSinCosOrthogonal(fSin, fCos, fRadiant);
+
+                aRetval.set3x2(
+                    /* Row 0, Column 0 */ fCos,
+                    /* Row 0, Column 1 */ -fSin,
+                    /* Row 0, Column 2 */ (fPointX * (1.0 - fCos)) + (fSin * fPointY),
+                    /* Row 1, Column 0 */ fSin,
+                    /* Row 1, Column 1 */ fCos,
+                    /* Row 1, Column 2 */ (fPointY * (1.0 - fCos)) - (fSin * fPointX));
             }
 
             return aRetval;