refs #416: to store the open state of object browser items in the binary array

[modules/gui.git] / src / SVTK / SALOME_Actor.cxx

diff --git a/src/SVTK/SALOME_Actor.cxx b/src/SVTK/SALOME_Actor.cxx
index df43a2cf3d5a4a349683376d6f6a79d8e885ab96..3f4383692dffb3cdce47aefeeb5f1aeee6fbff3f 100644 (file)
--- 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) 2007-2014  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
@@ -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)
 */