#i106127# perf: add B2DCubicBezier::getMaxDistancePositions ( ) to allow better bezier-subdivisions

1 files changed, 16 insertions, 0 deletions

diff --git a/basegfx/inc/basegfx/curve/b2dcubicbezier.hxx b/basegfx/inc/basegfx/curve/b2dcubicbezier.hxx
index 4dc2f45568f1..81be451499ea 100644
--- a/basegfx/inc/basegfx/curve/b2dcubicbezier.hxx
+++ b/basegfx/inc/basegfx/curve/b2dcubicbezier.hxx
@@ -203,6 +203,22 @@ namespace basegfx
             sense to use reserve(4) at the vector as preparation.
         */
         void getAllExtremumPositions(::std::vector< double >& rResults) const;
+
+        /** Get optimum-split position on this segment
+
+            This method calculates the positions of all points of the segment
+            that have the maximimum distance to the corresponding line from
+            startpoint-endpoint. This helps to approximate the bezier curve
+            with a minimum number of line segments
+
+            @param fResults
+             Result positions are in the range ]0.0 .. 1.0[
+            Cubic beziers have at most two of these positions
+
+            @return
+            Returns the number of split positions found
+        */
+        int getMaxDistancePositions( double fResults[2]) const;
     };
 } // end of namespace basegfx