Merge branch 'hasBsp' into 'master'

Added hasBsp() function to MeshObject.



See merge request !55

ObjectTypes/MeshObject/MeshObjectT.cc

@@ -805,6 +805,13 @@
   }
 
 
+  template < class MeshT  >
+  bool 
+  MeshObject< MeshT >::hasBsp() const { 
+    return triangle_bsp_ != 0; 
+  }
+
+
   //=============================================================================
 
   template < class MeshT  >

ObjectTypes/MeshObject/MeshObjectT.hh

@@ -340,6 +340,16 @@ class DLLEXPORTONLY MeshObject : public BaseObjectData {
      */
      OMTriangleBSP* resetTriangleBsp();
 
+     /** \brief check if a BSP has been computed and is valid
+     *
+     * This function checks if a bsp has been computed for this mesh object and
+     * if it is still valid (meaning, nothing has been changed on the object after
+     * the BSP has been computed
+     *
+     * @return BSP valid?
+     */
+     bool hasBsp() const;
+
 
   private :
     /// If requested a bsp is created for this object