typo-fix by Kunda

[modules/smesh.git] / src / OBJECT / SMESH_ScalarBarActor.cxx

diff --git a/src/OBJECT/SMESH_ScalarBarActor.cxx b/src/OBJECT/SMESH_ScalarBarActor.cxx
index c24369e0fdcbc41bf734bf1fc7c7efa5d322c7d6..e631e856c3e243e8423e4051e5540c4738a9440b 100644 (file)
--- a/src/OBJECT/SMESH_ScalarBarActor.cxx
+++ b/src/OBJECT/SMESH_ScalarBarActor.cxx
@@ -557,7 +557,8 @@ int SMESH_ScalarBarActor::RenderOpaqueGeometry(vtkViewport *viewport)
     }
 
     //polygons & cell colors
-    unsigned char *rgba, *rgb;
+    unsigned char *rgb;
+    const unsigned char *rgba;
     vtkIdType ptIds[4], dcCount=0;
     for ( i = 0; i < numColors; i++ )
     {
@@ -588,7 +589,8 @@ int SMESH_ScalarBarActor::RenderOpaqueGeometry(vtkViewport *viewport)
       // Customization of the vtkScalarBarActor to show distribution histogram.
       if ( myDistributionColoringType == SMESH_MULTICOLOR_TYPE &&
            GetDistributionVisibility() &&
-           distrVisibility )
+           distrVisibility &&
+           myNbValues[i] > 0 )
       {
         rgb = distColors->GetPointer(3*dcCount); //write into array directly
         rgb[0] = rgba[0];