+ return AddFaceWithID(n1->GetID(), n2->GetID(), n3->GetID(), n4->GetID(),
+ n12->GetID(), n23->GetID(), n34->GetID(), n41->GetID(),
+ nCenter->GetID(), ID);
+}
+
+
+//=======================================================================
+//function : AddVolume
+//purpose :
+//=======================================================================
+SMDS_MeshVolume* SMESHDS_Mesh::AddVolume(const SMDS_MeshNode * n1,
+ const SMDS_MeshNode * n2,
+ const SMDS_MeshNode * n3,
+ const SMDS_MeshNode * n4,
+ const SMDS_MeshNode * n12,
+ const SMDS_MeshNode * n23,
+ const SMDS_MeshNode * n31,
+ const SMDS_MeshNode * n14,
+ const SMDS_MeshNode * n24,
+ const SMDS_MeshNode * n34)
+{
+ SMDS_MeshVolume *anElem = SMDS_Mesh::AddVolume(n1,n2,n3,n4,n12,n23,n31,n14,n24,n34);
+ if(anElem) myScript->AddVolume(anElem->GetID(),
+ n1->GetID(), n2->GetID(), n3->GetID(), n4->GetID(),
+ n12->GetID(), n23->GetID(), n31->GetID(),
+ n14->GetID(), n24->GetID(), n34->GetID());
+ return anElem;
+}
+
+//=======================================================================
+//function : AddVolumeWithID
+//purpose :
+//=======================================================================
+SMDS_MeshVolume* SMESHDS_Mesh::AddVolumeWithID(int n1, int n2, int n3, int n4,
+ int n12,int n23,int n31,
+ int n14,int n24,int n34, int ID)
+{
+ SMDS_MeshVolume *anElem = SMDS_Mesh::AddVolumeWithID(n1,n2,n3,n4,n12,n23,
+ n31,n14,n24,n34,ID);
+ if(anElem) myScript->AddVolume(ID,n1,n2,n3,n4,n12,n23,n31,n14,n24,n34);
+ return anElem;
+}
+
+//=======================================================================
+//function : AddVolumeWithID
+//purpose : 2d order tetrahedron of 10 nodes
+//=======================================================================
+SMDS_MeshVolume* SMESHDS_Mesh::AddVolumeWithID(const SMDS_MeshNode * n1,
+ const SMDS_MeshNode * n2,
+ const SMDS_MeshNode * n3,
+ const SMDS_MeshNode * n4,
+ const SMDS_MeshNode * n12,
+ const SMDS_MeshNode * n23,
+ const SMDS_MeshNode * n31,
+ const SMDS_MeshNode * n14,
+ const SMDS_MeshNode * n24,
+ const SMDS_MeshNode * n34,
+ int ID)
+{
+ return AddVolumeWithID(n1->GetID(), n2->GetID(), n3->GetID(), n4->GetID(),
+ n12->GetID(), n23->GetID(), n31->GetID(),
+ n14->GetID(), n24->GetID(), n34->GetID(), ID);
+}
+
+
+//=======================================================================
+//function : AddVolume
+//purpose :
+//=======================================================================
+SMDS_MeshVolume* SMESHDS_Mesh::AddVolume(const SMDS_MeshNode * n1,
+ const SMDS_MeshNode * n2,
+ const SMDS_MeshNode * n3,
+ const SMDS_MeshNode * n4,
+ const SMDS_MeshNode * n5,
+ const SMDS_MeshNode * n12,
+ const SMDS_MeshNode * n23,
+ const SMDS_MeshNode * n34,
+ const SMDS_MeshNode * n41,
+ const SMDS_MeshNode * n15,
+ const SMDS_MeshNode * n25,
+ const SMDS_MeshNode * n35,
+ const SMDS_MeshNode * n45)
+{
+ SMDS_MeshVolume *anElem = SMDS_Mesh::AddVolume(n1,n2,n3,n4,n5,n12,n23,n34,n41,
+ n15,n25,n35,n45);
+ if(anElem)
+ myScript->AddVolume(anElem->GetID(), n1->GetID(), n2->GetID(),
+ n3->GetID(), n4->GetID(), n5->GetID(),
+ n12->GetID(), n23->GetID(), n34->GetID(), n41->GetID(),
+ n15->GetID(), n25->GetID(), n35->GetID(), n45->GetID());
+ return anElem;
+}
+
+//=======================================================================
+//function : AddVolumeWithID
+//purpose :
+//=======================================================================
+SMDS_MeshVolume* SMESHDS_Mesh::AddVolumeWithID(int n1, int n2, int n3, int n4, int n5,
+ int n12,int n23,int n34,int n41,
+ int n15,int n25,int n35,int n45, int ID)
+{
+ SMDS_MeshVolume *anElem = SMDS_Mesh::AddVolumeWithID(n1,n2,n3,n4,n5,
+ n12,n23,n34,n41,
+ n15,n25,n35,n45,ID);
+ if(anElem) myScript->AddVolume(ID,n1,n2,n3,n4,n5,n12,n23,n34,n41,
+ n15,n25,n35,n45);
+ return anElem;
+}
+
+//=======================================================================
+//function : AddVolumeWithID
+//purpose : 2d order pyramid of 13 nodes
+//=======================================================================
+SMDS_MeshVolume* SMESHDS_Mesh::AddVolumeWithID(const SMDS_MeshNode * n1,
+ const SMDS_MeshNode * n2,
+ const SMDS_MeshNode * n3,
+ const SMDS_MeshNode * n4,
+ const SMDS_MeshNode * n5,
+ const SMDS_MeshNode * n12,
+ const SMDS_MeshNode * n23,
+ const SMDS_MeshNode * n34,
+ const SMDS_MeshNode * n41,
+ const SMDS_MeshNode * n15,
+ const SMDS_MeshNode * n25,
+ const SMDS_MeshNode * n35,
+ const SMDS_MeshNode * n45,
+ int ID)
+{
+ return AddVolumeWithID(n1->GetID(), n2->GetID(), n3->GetID(),
+ n4->GetID(), n5->GetID(),
+ n12->GetID(), n23->GetID(), n34->GetID(), n41->GetID(),
+ n15->GetID(), n25->GetID(), n35->GetID(), n45->GetID(),
+ ID);
+}
+
+
+//=======================================================================
+//function : AddVolume
+//purpose : 2nd order pentahedron (prism) with 15 nodes
+//=======================================================================
+SMDS_MeshVolume* SMESHDS_Mesh::AddVolume(const SMDS_MeshNode * n1,
+ const SMDS_MeshNode * n2,
+ const SMDS_MeshNode * n3,
+ const SMDS_MeshNode * n4,
+ const SMDS_MeshNode * n5,
+ const SMDS_MeshNode * n6,
+ const SMDS_MeshNode * n12,
+ const SMDS_MeshNode * n23,
+ const SMDS_MeshNode * n31,
+ const SMDS_MeshNode * n45,
+ const SMDS_MeshNode * n56,
+ const SMDS_MeshNode * n64,
+ const SMDS_MeshNode * n14,
+ const SMDS_MeshNode * n25,
+ const SMDS_MeshNode * n36)
+{
+ SMDS_MeshVolume *anElem = SMDS_Mesh::AddVolume(n1,n2,n3,n4,n5,n6,n12,n23,n31,
+ n45,n56,n64,n14,n25,n36);
+ if(anElem)
+ myScript->AddVolume(anElem->GetID(), n1->GetID(), n2->GetID(),
+ n3->GetID(), n4->GetID(), n5->GetID(), n6->GetID(),
+ n12->GetID(), n23->GetID(), n31->GetID(),
+ n45->GetID(), n56->GetID(), n64->GetID(),
+ n14->GetID(), n25->GetID(), n36->GetID());
+ return anElem;
+}
+
+//=======================================================================
+//function : AddVolumeWithID
+//purpose : 2nd order pentahedron (prism) with 15 nodes
+//=======================================================================
+SMDS_MeshVolume* SMESHDS_Mesh::AddVolumeWithID(int n1, int n2, int n3,
+ int n4, int n5, int n6,
+ int n12,int n23,int n31,
+ int n45,int n56,int n64,
+ int n14,int n25,int n36, int ID)
+{
+ SMDS_MeshVolume *anElem = SMDS_Mesh::AddVolumeWithID(n1,n2,n3,n4,n5,n6,
+ n12,n23,n31,
+ n45,n56,n64,
+ n14,n25,n36,ID);
+ if(anElem) myScript->AddVolume(ID,n1,n2,n3,n4,n5,n6,n12,n23,n31,
+ n45,n56,n64,n14,n25,n36);
+ return anElem;
+}
+
+//=======================================================================
+//function : AddVolumeWithID
+//purpose : 2d order Pentahedron (prism) with 15 nodes
+//=======================================================================
+SMDS_MeshVolume* SMESHDS_Mesh::AddVolumeWithID(const SMDS_MeshNode * n1,
+ const SMDS_MeshNode * n2,
+ const SMDS_MeshNode * n3,
+ const SMDS_MeshNode * n4,
+ const SMDS_MeshNode * n5,
+ const SMDS_MeshNode * n6,
+ const SMDS_MeshNode * n12,
+ const SMDS_MeshNode * n23,
+ const SMDS_MeshNode * n31,
+ const SMDS_MeshNode * n45,
+ const SMDS_MeshNode * n56,
+ const SMDS_MeshNode * n64,
+ const SMDS_MeshNode * n14,
+ const SMDS_MeshNode * n25,
+ const SMDS_MeshNode * n36,
+ int ID)
+{
+ return AddVolumeWithID(n1->GetID(), n2->GetID(), n3->GetID(),
+ n4->GetID(), n5->GetID(), n6->GetID(),
+ n12->GetID(), n23->GetID(), n31->GetID(),
+ n45->GetID(), n56->GetID(), n64->GetID(),
+ n14->GetID(), n25->GetID(), n36->GetID(),
+ ID);
+}
+//=======================================================================
+//function : AddVolume
+//purpose : 2nd order pentahedron (prism) with 18 nodes
+//=======================================================================
+SMDS_MeshVolume* SMESHDS_Mesh::AddVolume(const SMDS_MeshNode * n1,
+ const SMDS_MeshNode * n2,
+ const SMDS_MeshNode * n3,
+ const SMDS_MeshNode * n4,
+ const SMDS_MeshNode * n5,
+ const SMDS_MeshNode * n6,
+ const SMDS_MeshNode * n12,
+ const SMDS_MeshNode * n23,
+ const SMDS_MeshNode * n31,
+ const SMDS_MeshNode * n45,
+ const SMDS_MeshNode * n56,
+ const SMDS_MeshNode * n64,
+ const SMDS_MeshNode * n14,
+ const SMDS_MeshNode * n25,
+ const SMDS_MeshNode * n36,
+ const SMDS_MeshNode * n1245,
+ const SMDS_MeshNode * n2356,
+ const SMDS_MeshNode * n1346)
+{
+ SMDS_MeshVolume *anElem = SMDS_Mesh::AddVolume(n1,n2,n3,n4,n5,n6,n12,n23,n31,
+ n45,n56,n64,n14,n25,n36,
+ n1245, n2356, n1346);
+ if(anElem)
+ myScript->AddVolume(anElem->GetID(), n1->GetID(), n2->GetID(),
+ n3->GetID(), n4->GetID(), n5->GetID(), n6->GetID(),
+ n12->GetID(), n23->GetID(), n31->GetID(),
+ n45->GetID(), n56->GetID(), n64->GetID(),
+ n14->GetID(), n25->GetID(), n36->GetID(),
+ n1245->GetID(), n2356->GetID(), n1346->GetID());
+ return anElem;
+}
+
+//=======================================================================
+//function : AddVolumeWithID
+//purpose : 2nd order pentahedron (prism) with 18 nodes
+//=======================================================================
+SMDS_MeshVolume* SMESHDS_Mesh::AddVolumeWithID(int n1, int n2, int n3,
+ int n4, int n5, int n6,
+ int n12,int n23,int n31,
+ int n45,int n56,int n64,
+ int n14,int n25,int n36,
+ int n1245, int n2356, int n1346,
+ int ID)
+{
+ SMDS_MeshVolume *anElem = SMDS_Mesh::AddVolumeWithID(n1,n2,n3,n4,n5,n6,
+ n12,n23,n31,
+ n45,n56,n64,
+ n14,n25,n36,
+ n1245, n2356, n1346, ID);
+ if(anElem) myScript->AddVolume(ID,n1,n2,n3,n4,n5,n6,n12,n23,n31,
+ n45,n56,n64,n14,n25,n36, n1245, n2356, n1346);
+ return anElem;
+}
+
+//=======================================================================
+//function : AddVolumeWithID
+//purpose : 2d order Pentahedron with 18 nodes
+//=======================================================================
+SMDS_MeshVolume* SMESHDS_Mesh::AddVolumeWithID(const SMDS_MeshNode * n1,
+ const SMDS_MeshNode * n2,
+ const SMDS_MeshNode * n3,
+ const SMDS_MeshNode * n4,
+ const SMDS_MeshNode * n5,
+ const SMDS_MeshNode * n6,
+ const SMDS_MeshNode * n12,
+ const SMDS_MeshNode * n23,
+ const SMDS_MeshNode * n31,
+ const SMDS_MeshNode * n45,
+ const SMDS_MeshNode * n56,
+ const SMDS_MeshNode * n64,
+ const SMDS_MeshNode * n14,
+ const SMDS_MeshNode * n25,
+ const SMDS_MeshNode * n36,
+ const SMDS_MeshNode * n1245,
+ const SMDS_MeshNode * n2356,
+ const SMDS_MeshNode * n1346,
+ int ID)
+{
+ return AddVolumeWithID(n1->GetID(), n2->GetID(), n3->GetID(),
+ n4->GetID(), n5->GetID(), n6->GetID(),
+ n12->GetID(), n23->GetID(), n31->GetID(),
+ n45->GetID(), n56->GetID(), n64->GetID(),
+ n14->GetID(), n25->GetID(), n36->GetID(),
+ n1245->GetID(), n2356->GetID(), n1346->GetID(), ID);
+}
+
+
+//=======================================================================
+//function : AddVolume
+//purpose : add quadratic hexahedron
+//=======================================================================
+SMDS_MeshVolume* SMESHDS_Mesh::AddVolume(const SMDS_MeshNode * n1,
+ const SMDS_MeshNode * n2,
+ const SMDS_MeshNode * n3,
+ const SMDS_MeshNode * n4,
+ const SMDS_MeshNode * n5,
+ const SMDS_MeshNode * n6,
+ const SMDS_MeshNode * n7,
+ const SMDS_MeshNode * n8,
+ const SMDS_MeshNode * n12,
+ const SMDS_MeshNode * n23,
+ const SMDS_MeshNode * n34,
+ const SMDS_MeshNode * n41,
+ const SMDS_MeshNode * n56,
+ const SMDS_MeshNode * n67,
+ const SMDS_MeshNode * n78,
+ const SMDS_MeshNode * n85,
+ const SMDS_MeshNode * n15,
+ const SMDS_MeshNode * n26,
+ const SMDS_MeshNode * n37,
+ const SMDS_MeshNode * n48)
+{
+ SMDS_MeshVolume *anElem = SMDS_Mesh::AddVolume(n1,n2,n3,n4,n5,n6,n7,n8,
+ n12,n23,n34,n41,
+ n56,n67,n78,n85,
+ n15,n26,n37,n48);
+ if(anElem)
+ myScript->AddVolume(anElem->GetID(), n1->GetID(), n2->GetID(),
+ n3->GetID(), n4->GetID(), n5->GetID(),
+ n6->GetID(), n7->GetID(), n8->GetID(),
+ n12->GetID(), n23->GetID(), n34->GetID(), n41->GetID(),
+ n56->GetID(), n67->GetID(), n78->GetID(), n85->GetID(),
+ n15->GetID(), n26->GetID(), n37->GetID(), n48->GetID());
+ return anElem;
+}
+
+//=======================================================================
+//function : AddVolumeWithID
+//purpose :
+//=======================================================================
+SMDS_MeshVolume* SMESHDS_Mesh::AddVolumeWithID(int n1, int n2, int n3, int n4,
+ int n5, int n6, int n7, int n8,
+ int n12,int n23,int n34,int n41,
+ int n56,int n67,int n78,int n85,
+ int n15,int n26,int n37,int n48, int ID)
+{
+ SMDS_MeshVolume *anElem = SMDS_Mesh::AddVolumeWithID(n1,n2,n3,n4,n5,n6,n7,n8,
+ n12,n23,n34,n41,
+ n56,n67,n78,n85,
+ n15,n26,n37,n48,ID);
+ if(anElem) myScript->AddVolume(ID,n1,n2,n3,n4,n5,n6,n7,n8,n12,n23,n34,n41,
+ n56,n67,n78,n85,n15,n26,n37,n48);
+ return anElem;
+}
+
+//=======================================================================
+//function : AddVolumeWithID
+//purpose : 2d order Hexahedrons with 20 nodes
+//=======================================================================
+SMDS_MeshVolume* SMESHDS_Mesh::AddVolumeWithID(const SMDS_MeshNode * n1,
+ const SMDS_MeshNode * n2,
+ const SMDS_MeshNode * n3,
+ const SMDS_MeshNode * n4,
+ const SMDS_MeshNode * n5,
+ const SMDS_MeshNode * n6,
+ const SMDS_MeshNode * n7,
+ const SMDS_MeshNode * n8,
+ const SMDS_MeshNode * n12,
+ const SMDS_MeshNode * n23,
+ const SMDS_MeshNode * n34,
+ const SMDS_MeshNode * n41,
+ const SMDS_MeshNode * n56,
+ const SMDS_MeshNode * n67,
+ const SMDS_MeshNode * n78,
+ const SMDS_MeshNode * n85,
+ const SMDS_MeshNode * n15,
+ const SMDS_MeshNode * n26,
+ const SMDS_MeshNode * n37,
+ const SMDS_MeshNode * n48,
+ int ID)
+{
+ return AddVolumeWithID(n1->GetID(), n2->GetID(), n3->GetID(), n4->GetID(),
+ n5->GetID(), n6->GetID(), n7->GetID(), n8->GetID(),
+ n12->GetID(), n23->GetID(), n34->GetID(), n41->GetID(),
+ n56->GetID(), n67->GetID(), n78->GetID(), n85->GetID(),
+ n15->GetID(), n26->GetID(), n37->GetID(), n48->GetID(),
+ ID);
+}
+
+//=======================================================================
+//function : AddVolume
+//purpose : add tri-quadratic hexahedron of 27 nodes
+//=======================================================================
+
+SMDS_MeshVolume* SMESHDS_Mesh::AddVolume(const SMDS_MeshNode * n1,
+ const SMDS_MeshNode * n2,
+ const SMDS_MeshNode * n3,
+ const SMDS_MeshNode * n4,
+ const SMDS_MeshNode * n5,
+ const SMDS_MeshNode * n6,
+ const SMDS_MeshNode * n7,
+ const SMDS_MeshNode * n8,
+ const SMDS_MeshNode * n12,
+ const SMDS_MeshNode * n23,
+ const SMDS_MeshNode * n34,
+ const SMDS_MeshNode * n41,
+ const SMDS_MeshNode * n56,
+ const SMDS_MeshNode * n67,
+ const SMDS_MeshNode * n78,
+ const SMDS_MeshNode * n85,
+ const SMDS_MeshNode * n15,
+ const SMDS_MeshNode * n26,
+ const SMDS_MeshNode * n37,
+ const SMDS_MeshNode * n48,
+ const SMDS_MeshNode * n1234,
+ const SMDS_MeshNode * n1256,
+ const SMDS_MeshNode * n2367,
+ const SMDS_MeshNode * n3478,
+ const SMDS_MeshNode * n1458,
+ const SMDS_MeshNode * n5678,
+ const SMDS_MeshNode * nCenter)
+{
+ SMDS_MeshVolume *anElem = SMDS_Mesh::AddVolume(n1,n2,n3,n4,n5,n6,n7,n8,
+ n12,n23,n34,n41,
+ n56,n67,n78,n85,
+ n15,n26,n37,n48,
+ n1234,n1256,n2367,n3478,n1458,n5678,nCenter);
+ if(anElem)
+ myScript->AddVolume(anElem->GetID(), n1->GetID(), n2->GetID(),
+ n3->GetID(), n4->GetID(), n5->GetID(),
+ n6->GetID(), n7->GetID(), n8->GetID(),
+ n12->GetID(), n23->GetID(), n34->GetID(), n41->GetID(),
+ n56->GetID(), n67->GetID(), n78->GetID(), n85->GetID(),
+ n15->GetID(), n26->GetID(), n37->GetID(), n48->GetID(),
+ n1234->GetID(),n1256->GetID(),n2367->GetID(),n3478->GetID(),
+ n1458->GetID(),n5678->GetID(),nCenter->GetID());
+ return anElem;
+}
+
+SMDS_MeshVolume* SMESHDS_Mesh::AddVolumeWithID(int n1, int n2, int n3, int n4,
+ int n5, int n6, int n7, int n8,
+ int n12,int n23,int n34,int n41,
+ int n56,int n67,int n78,int n85,
+ int n15,int n26,int n37,int n48,
+ int n1234,int n1256,int n2367,int n3478,
+ int n1458,int n5678,int nCenter,
+ int ID)
+{
+ SMDS_MeshVolume *anElem = SMDS_Mesh::AddVolumeWithID(n1,n2,n3,n4,n5,n6,n7,n8,
+ n12,n23,n34,n41,
+ n56,n67,n78,n85,
+ n15,n26,n37,n48,
+ n1234, n1256, n2367, n3478,
+ n1458, n5678, nCenter,
+ ID);
+ if(anElem) myScript->AddVolume(ID,n1,n2,n3,n4,n5,n6,n7,n8,n12,n23,n34,n41,
+ n56,n67,n78,n85,n15,n26,n37,n48,
+ n1234, n1256, n2367, n3478,
+ n1458, n5678, nCenter);
+ return anElem;
+}
+
+SMDS_MeshVolume* SMESHDS_Mesh::AddVolumeWithID(const SMDS_MeshNode * n1,
+ const SMDS_MeshNode * n2,
+ const SMDS_MeshNode * n3,
+ const SMDS_MeshNode * n4,
+ const SMDS_MeshNode * n5,
+ const SMDS_MeshNode * n6,
+ const SMDS_MeshNode * n7,
+ const SMDS_MeshNode * n8,
+ const SMDS_MeshNode * n12,
+ const SMDS_MeshNode * n23,
+ const SMDS_MeshNode * n34,
+ const SMDS_MeshNode * n41,
+ const SMDS_MeshNode * n56,
+ const SMDS_MeshNode * n67,
+ const SMDS_MeshNode * n78,
+ const SMDS_MeshNode * n85,
+ const SMDS_MeshNode * n15,
+ const SMDS_MeshNode * n26,
+ const SMDS_MeshNode * n37,
+ const SMDS_MeshNode * n48,
+ const SMDS_MeshNode * n1234,
+ const SMDS_MeshNode * n1256,
+ const SMDS_MeshNode * n2367,
+ const SMDS_MeshNode * n3478,
+ const SMDS_MeshNode * n1458,
+ const SMDS_MeshNode * n5678,
+ const SMDS_MeshNode * nCenter,
+ int ID)
+{
+ return AddVolumeWithID(n1->GetID(), n2->GetID(), n3->GetID(), n4->GetID(),
+ n5->GetID(), n6->GetID(), n7->GetID(), n8->GetID(),
+ n12->GetID(), n23->GetID(), n34->GetID(), n41->GetID(),
+ n56->GetID(), n67->GetID(), n78->GetID(), n85->GetID(),
+ n15->GetID(), n26->GetID(), n37->GetID(), n48->GetID(),
+ n1234->GetID(),n1256->GetID(),n2367->GetID(),n3478->GetID(),
+ n1458->GetID(),n5678->GetID(),nCenter->GetID(), ID);
+}
+
+void SMESHDS_Mesh::CompactMesh()
+{
+ if ( IsCompacted() )
+ return;
+
+ SMDS_Mesh::CompactMesh();
+
+ this->myScript->SetModified(true); // notify GUI client for buildPrs when update
+}
+
+void SMESHDS_Mesh::CleanDownWardConnectivity()
+{
+ myGrid->CleanDownwardConnectivity();
+}
+
+void SMESHDS_Mesh::BuildDownWardConnectivity(bool withEdges)
+{
+ myGrid->BuildDownwardConnectivity(withEdges);
+}
+
+/*! change some nodes in cell without modifying type or internal connectivity.
+ * Nodes inverse connectivity is maintained up to date.
+ * @param vtkVolId vtk id of the cell.
+ * @param localClonedNodeIds map old node id to new node id.
+ * @return ok if success.
+ */
+bool SMESHDS_Mesh::ModifyCellNodes(int vtkVolId, std::map<int,int> localClonedNodeIds)
+{
+ myGrid->ModifyCellNodes(vtkVolId, localClonedNodeIds);
+ return true;