Handle case where no tranform matrix exists.

2017-10-13 17:35:21 +01:00
parent d455f5f445
commit b57dca66be
1 changed files with 1 additions and 0 deletions
--- a/simgear/canvas/elements/CanvasElement.cxx
+++ b/simgear/canvas/elements/CanvasElement.cxx
@@ -433,6 +433,7 @@ namespace canvas
  osg::Vec2f Element::posToLocal(const osg::Vec2f& pos) const
  {
    getMatrix();
+    if (! _transform) return osg::Vec2f(pos[0], pos[1]);
    const osg::Matrix& m = _transform->getInverseMatrix();
    return osg::Vec2f
    (