int GetParentVolumes(int* volVtkIds, int vtkId);
int GetParentVolumes(int* volVtkIds, int downId, unsigned char downType);
void GetNodeIds(std::set<int>& nodeSet, int downId, unsigned char downType);
int GetParentVolumes(int* volVtkIds, int vtkId);
int GetParentVolumes(int* volVtkIds, int downId, unsigned char downType);
void GetNodeIds(std::set<int>& nodeSet, int downId, unsigned char downType);