Merge branch 'timoore/effects'

[simgear.git] / simgear / math / SGLineSegment.hxx

diff --git a/simgear/math/SGLineSegment.hxx b/simgear/math/SGLineSegment.hxx
index 0e509621856a2c238373aada3b6f59ca26be9523..c3121c62bba979c796910840dd86f9665447c63f 100644 (file)
--- a/simgear/math/SGLineSegment.hxx
+++ b/simgear/math/SGLineSegment.hxx
@@ -48,6 +48,14 @@ public:
   SGVec3<T> getCenter() const
   { return _start + T(0.5)*_direction; }
 
+  SGLineSegment<T> transform(const SGMatrix<T>& matrix) const
+  {
+    SGLineSegment<T> lineSegment;
+    lineSegment._start = matrix.xformPt(_start);
+    lineSegment._direction = matrix.xformVec(_direction);
+    return lineSegment;
+  }
+
 private:
   SGVec3<T> _start;
   SGVec3<T> _direction;