Add dcm extension

[clitk.git] / vv / vvSlicer.cxx

diff --git a/vv/vvSlicer.cxx b/vv/vvSlicer.cxx
index ed53d2c83b138c600eeabf680da7edd775854cbc..cd65e2fdd722221e3414d39a56d3aa7685490044 100644 (file)
--- a/vv/vvSlicer.cxx
+++ b/vv/vvSlicer.cxx
@@ -1307,14 +1307,16 @@ double vvSlicer::GetOverlayColorLevel()
 //----------------------------------------------------------------------------
 void vvSlicer::SetOverlayColorWindow(double window)
 {
-  mOverlayMapper->SetWindow(window);
+  if(mOverlayMapper)
+    mOverlayMapper->SetWindow(window);
 }
 //----------------------------------------------------------------------------
 
 //----------------------------------------------------------------------------
 void vvSlicer::SetOverlayColorLevel(double level)
 {
-  mOverlayMapper->SetLevel(level);
+  if(mOverlayMapper)
+    mOverlayMapper->SetLevel(level);
 }
 //----------------------------------------------------------------------------