X-Git-Url: https://git.creatis.insa-lyon.fr/pubgit/?a=blobdiff_plain;f=vv%2FvvImageContour.cxx;h=68dc72059a32d5cf02ac3424720149e6ffd9fc7f;hb=92044073d6c8ff23ca0ebb8664e46c0a8cf86ea0;hp=1c265f3aabe97682c264df479e372ee6c0d40204;hpb=05413db25dc1daf6d79b45caa2a75668bf5e13e7;p=clitk.git

diff --git a/vv/vvImageContour.cxx b/vv/vvImageContour.cxx
index 1c265f3..68dc720 100644
--- a/vv/vvImageContour.cxx
+++ b/vv/vvImageContour.cxx
@@ -38,6 +38,7 @@ vvImageContour::vvImageContour()
   mDisplayModeIsPreserveMemory = true;
   SetPreserveMemoryModeEnabled(true);
   mPreviousOrientation = -1;
+  mPreviousValue=0;
   mDepth = 1.0;
   mSlice = 0;
 }
@@ -124,7 +125,7 @@ void vvImageContour::SetColor(double r, double g, double b)
 { 
   for(unsigned int i=0; i<mSquaresActorList.size(); i++) {
     mSquaresActorList[i]->GetProperty()->SetColor(r,g,b);
-    mSquaresActorList[i]->GetProperty()->SetOpacity(0.995);
+    mSquaresActorList[i]->GetProperty()->SetOpacity(0.995); //in order to get VTK to turn on the alpha-blending in OpenGL
   }
 }
 //------------------------------------------------------------------------------
@@ -234,7 +235,7 @@ void vvImageContour::UpdateWithPreserveMemoryMode()
     if (mPreviousTslice != -1) mSquaresActorList[mPreviousTslice]->VisibilityOff();
   }
 
-  mSlicer->Render();
+  //mSlicer->Render();
 }
 //------------------------------------------------------------------------------
 
@@ -337,7 +338,7 @@ void vvImageContour::CreateNewActor(int numImage)
   squaresMapper->ScalarVisibilityOff();
   squaresActor->SetMapper(squaresMapper);
   squaresActor->GetProperty()->SetColor(1.0,0,0);
-  squaresActor->GetProperty()->SetOpacity(0.995);
+  squaresActor->GetProperty()->SetOpacity(0.995); //in order to get VTK to turn on the alpha-blending in OpenGL
   squaresActor->SetPickable(0);
   squaresActor->VisibilityOff();
   mSlicer->GetRenderer()->AddActor(squaresActor);