From 9ad489fa8754642210dbe2c3fcab85847e9aed98 Mon Sep 17 00:00:00 2001
From: abd <abd@opencascade.com>
Date: Thu, 10 Aug 2006 06:08:40 +0000
Subject: [PATCH] Bug SWP12863 Protection for empty shrink data

---
 src/SVTK/SVTK_DeviceActor.cxx | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/SVTK/SVTK_DeviceActor.cxx b/src/SVTK/SVTK_DeviceActor.cxx
index 279015efd..33d8f1246 100644
--- a/src/SVTK/SVTK_DeviceActor.cxx
+++ b/src/SVTK/SVTK_DeviceActor.cxx
@@ -249,8 +249,14 @@ SVTK_DeviceActor
 {
   if ( !myIsShrinkable ) 
     return;
+  
   if ( vtkDataSet* aDataSet = myPassFilter[ 0 ]->GetOutput() )
-  {
+  {     
+    int numCells=aDataSet->GetNumberOfCells();
+    int numPts = aDataSet->GetNumberOfPoints();
+    //It's impossible to use to apply "shrink" for "empty" dataset
+    if (numCells < 1 || numPts < 1)
+ 	    return;
     myShrinkFilter->SetInput( aDataSet );
     myPassFilter[ 1 ]->SetInput( myShrinkFilter->GetOutput() );
     myIsShrunk = true;
-- 
2.39.2