/*========================================================================= Program: Visualization Toolkit Module: vtkBridgeCellIteratorOne.h Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen All rights reserved. See Copyright.txt or http://www.kitware.com/Copyright.htm for details. This software is distributed WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the above copyright notice for more information. =========================================================================*/ // .NAME vtkBridgeCellIteratorOne - Iterate over one cell only of a dataset. // .SECTION See Also // vtkBridgeCellIterator, vtkBridgeDataSet, vtkBridgeCellIteratorStrategy #ifndef __vtkBridgeCellIteratorOne_h #define __vtkBridgeCellIteratorOne_h #include "vtkBridgeCellIteratorStrategy.h" class vtkBridgeCell; class vtkBridgeDataSet; class vtkBridgeCell; class vtkIdList; class vtkPoints; class vtkCell; class VTKTESTINGGENERICBRIDGE_EXPORT vtkBridgeCellIteratorOne : public vtkBridgeCellIteratorStrategy { public: static vtkBridgeCellIteratorOne *New(); vtkTypeMacro(vtkBridgeCellIteratorOne, vtkBridgeCellIteratorStrategy); void PrintSelf(ostream& os, vtkIndent indent); // Description: // Move iterator to first position if any (loop initialization). void Begin(); // Description: // Is there no cell at iterator position? (exit condition). int IsAtEnd(); // Description: // Cell at current position // \pre not_at_end: !IsAtEnd() // \pre c_exists: c!=0 // THREAD SAFE void GetCell(vtkGenericAdaptorCell *c); // Description: // Cell at current position. // NOT THREAD SAFE // \pre not_at_end: !IsAtEnd() // \post result_exits: result!=0 vtkGenericAdaptorCell *GetCell(); // Description: // Move iterator to next position. (loop progression). // \pre not_at_end: !IsAtEnd() void Next(); // Description: // Used internally by vtkBridgeDataSet. // Iterate on one cell `id' of `ds'. // \pre ds_exists: ds!=0 // \pre valid_id: (id>=0)&&(id<=ds->GetNumberOfCells()) void InitWithOneCell(vtkBridgeDataSet *ds, vtkIdType cellid); // Description: // Used internally by vtkBridgeCell. // Iterate on one cell `c'. // \pre c_exists: c!=0 void InitWithOneCell(vtkBridgeCell *c); // Description: // Used internally by vtkBridgeCell. // Iterate on a boundary cell (defined by its points `pts' with coordinates // `coords', dimension `dim' and unique id `cellid') of a cell. // \pre coords_exist: coords!=0 // \pre pts_exist: pts!=0 // \pre valid_dim: dim>=0 && dim<=2 // \pre valid_points: pts->GetNumberOfIds()>dim void InitWithPoints(vtkPoints *coords, vtkIdList *pts, int dim, vtkIdType cellid); protected: vtkBridgeCellIteratorOne(); virtual ~vtkBridgeCellIteratorOne(); int cIsAtEnd; vtkBridgeDataSet *DataSet; // the structure on which the objet iterates. vtkIdType Id; // the id at current position. vtkBridgeCell *Cell; // cell at current position. vtkCell *InternalCell; private: vtkBridgeCellIteratorOne(const vtkBridgeCellIteratorOne&); // Not implemented void operator=(const vtkBridgeCellIteratorOne&); // Not implemented }; #endif