- double UMin = 0, UMax = 0;
- TopLoc_Location L;
- if (BRep_Tool::Degenerated(E)) return 0;
- Handle (Geom_Curve) C = BRep_Tool::Curve(E, L, UMin, UMax);
- GeomAdaptor_Curve AdaptCurve(C);
- GCPnts_AbscissaPoint gabs;
- double length = gabs.Length(AdaptCurve, UMin, UMax);
- return length;
+ if ( SMESHDS_SubMesh* sm = meshDS->MeshElements(V) ) {
+ SMDS_NodeIteratorPtr nIt= sm->GetNodes();
+ if (nIt->more())
+ return nIt->next();
+ }
+ return 0;
+}
+
+//================================================================================
+/*!
+ * \brief Sets event listener to submeshes if necessary
+ * \param subMesh - submesh where algo is set
+ *
+ * After being set, event listener is notified on each event of a submesh.
+ * By default non listener is set
+ */
+//================================================================================
+
+void SMESH_Algo::SetEventListener(SMESH_subMesh* /*subMesh*/)
+{
+}
+
+//================================================================================
+/*!
+ * \brief Allow algo to do something after persistent restoration
+ * \param subMesh - restored submesh
+ *
+ * This method is called only if a submesh has HYP_OK algo_state.
+ */
+//================================================================================
+
+void SMESH_Algo::SubmeshRestored(SMESH_subMesh* /*subMesh*/)
+{
+}
+
+//================================================================================
+/*!
+ * \brief Computes mesh without geometry
+ * \param aMesh - the mesh
+ * \param aHelper - helper that must be used for adding elements to \aaMesh
+ * \retval bool - is a success
+ */
+//================================================================================
+
+bool SMESH_Algo::Compute(SMESH_Mesh & /*aMesh*/, SMESH_MesherHelper* /*aHelper*/)
+{
+ return error( COMPERR_BAD_INPUT_MESH, "Mesh built on shape expected");
+}
+
+//================================================================================
+/*!
+ * \brief store error and comment and then return ( error == COMPERR_OK )
+ */
+//================================================================================
+
+bool SMESH_Algo::error(int error, const SMESH_Comment& comment)
+{
+ _error = error;
+ _comment = comment;
+ return ( error == COMPERR_OK );
+}
+
+//================================================================================
+/*!
+ * \brief store error and return ( error == COMPERR_OK )
+ */
+//================================================================================
+
+bool SMESH_Algo::error(SMESH_ComputeErrorPtr error)
+{
+ if ( error ) {
+ _error = error->myName;
+ _comment = error->myComment;
+ return error->IsOK();
+ }
+ return true;
+}
+
+//================================================================================
+/*!
+ * \brief return compute error
+ */
+//================================================================================
+
+SMESH_ComputeErrorPtr SMESH_Algo::GetComputeError() const
+{
+ return SMESH_ComputeError::New( _error, _comment, this );
+}
+
+//================================================================================
+/*!
+ * \brief initialize compute error
+ */
+//================================================================================
+
+void SMESH_Algo::InitComputeError()
+{
+ _error = COMPERR_OK;
+ _comment.clear();