X-Git-Url: http://git.salome-platform.org/gitweb/?a=blobdiff_plain;f=src%2FSVTK%2FSALOME_Actor.cxx;h=b0741a5f20ee08992cc75744ac177b276c47a031;hb=e6caa123c65e3c4a3017364ec5bb4225fd898465;hp=6a229199621a2194e0accd14d9d935c029fb2e64;hpb=8d973f87a441c75acab8b1cf0d3f54434735008e;p=modules%2Fgui.git

diff --git a/src/SVTK/SALOME_Actor.cxx b/src/SVTK/SALOME_Actor.cxx
index 6a2291996..b0741a5f2 100644
--- a/src/SVTK/SALOME_Actor.cxx
+++ b/src/SVTK/SALOME_Actor.cxx
@@ -1,4 +1,4 @@
-// Copyright (C) 2007-2013  CEA/DEN, EDF R&D, OPEN CASCADE
+// Copyright (C) 2007-2015  CEA/DEN, EDF R&D, OPEN CASCADE
 //
 // Copyright (C) 2003-2007  OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
 // CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
@@ -6,7 +6,7 @@
 // This library is free software; you can redistribute it and/or
 // modify it under the terms of the GNU Lesser General Public
 // License as published by the Free Software Foundation; either
-// version 2.1 of the License.
+// version 2.1 of the License, or (at your option) any later version.
 //
 // This library is distributed in the hope that it will be useful,
 // but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -500,7 +500,7 @@ SALOME_Actor
                SVTK_SelectionEvent* theSelectionEvent,
                bool theIsHighlight)
 {
-  if ( !GetPickable() || !mySelector->IsPreSelectionEnabled() )
+  if ( !GetPickable() || !mySelector || !mySelector->IsPreSelectionEnabled() )
     return false;
       
   vtkRenderer *aRenderer = theInteractorStyle->GetCurrentRenderer();
@@ -924,7 +924,7 @@ SALOME_Actor
 */
 void
 SALOME_Actor
-::SetNameActorOffset(int theOffset[2])
+::SetNameActorOffset(double theOffset[2])
 {
   myNameActor->SetOffset(theOffset);
 }
@@ -936,7 +936,7 @@ SALOME_Actor
 */
 void
 SALOME_Actor
-::GetNameActorSize(vtkRenderer* theRenderer, int theSize[2]) const
+::GetNameActorSize(vtkRenderer* theRenderer, double theSize[2]) const
 {
   myNameActor->GetSize(theRenderer, theSize);
 }
@@ -950,7 +950,7 @@ SALOME_Actor
 {
   if( vtkRenderer* aRenderer = GetRenderer() )
   {
-    int anOffset[2] = { 0, 0 };
+    double anOffset[2] = { 0, 0 };
     VTK::ActorCollectionCopy aCopy(aRenderer->GetActors());
     vtkActorCollection* aCollection = aCopy.GetActors();
     for( int anIndex = 0, aNbItems = aCollection->GetNumberOfItems(); anIndex < aNbItems; anIndex++ )
@@ -962,7 +962,7 @@ SALOME_Actor
           anActor->SetNameActorOffset( anOffset );
           if( anActor->GetVisibility() )
           {
-            int aSize[2];
+            double aSize[2];
             anActor->GetNameActorSize( aRenderer, aSize );
             anOffset[0] = anOffset[0] + aSize[0];
             anOffset[1] = anOffset[1] + aSize[1];
@@ -1018,6 +1018,38 @@ SALOME_Actor
   myCellAreaPicker = theAreaPicker;
 }
 
+/*!
+  To find a gravity center of object
+  \param theObjId - identification of object
+*/
+double*
+SALOME_Actor
+::GetGravityCenter( int theObjId )
+{
+  double* result = new double[3];
+  for( int i = 0; i < 3; i++ )
+    result[i]= 0.0;
+
+  vtkPoints* points = GetElemCell( theObjId )->GetPoints();
+  int nbPoints = points->GetNumberOfPoints();
+
+  if( nbPoints <= 0 )
+    return NULL;
+
+  for( int i = 0; i < nbPoints; i++ )
+  {
+    double* aPoint = points->GetPoint(i);
+    result[0] += aPoint[0];
+    result[1] += aPoint[1];
+    result[2] += aPoint[2];
+  }
+  result[0] = result[0] / nbPoints;
+  result[1] = result[1] / nbPoints;
+  result[2] = result[2] / nbPoints;
+
+  return result;
+}
+
 /*!
   To set up a prehighlight property (initialized by SVTK_Renderer::AddActor)
 */