/*========================================================================= Program: Visualization Toolkit Module: vtkBridgeCellIterator.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 vtkBridgeCellIterator - Implementation of vtkGenericCellIterator. // It is just an example that show how to implement the Generic API. It is also // used for testing and evaluating the Generic framework. // .SECTION See Also // vtkGenericCellIterator, vtkBridgeDataSet #ifndef __vtkBridgeCellIterator_h #define __vtkBridgeCellIterator_h #include "vtkBridgeExport.h" //for module export macro #include "vtkGenericCellIterator.h" class vtkBridgeCell; class vtkBridgeDataSet; class vtkBridgeCell; class vtkIdList; class vtkBridgeDataSet; class vtkPoints; class vtkBridgeCellIteratorStrategy; class vtkBridgeCellIteratorOnDataSet; class vtkBridgeCellIteratorOne; class vtkBridgeCellIteratorOnCellBoundaries; class vtkBridgeCellIteratorOnCellList; class VTKTESTINGGENERICBRIDGE_EXPORT vtkBridgeCellIterator : public vtkGenericCellIterator { public: static vtkBridgeCellIterator *New(); vtkTypeMacro(vtkBridgeCellIterator,vtkGenericCellIterator); 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: // Create an empty cell. // \post result_exists: result!=0 vtkGenericAdaptorCell *NewCell(); // 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 over cells of `ds' of some dimension `dim'. // \pre ds_exists: ds!=0 // \pre valid_dim_range: (dim>=-1) && (dim<=3) void InitWithDataSet(vtkBridgeDataSet *ds, int dim); // Description: // Used internally by vtkBridgeDataSet. // Iterate over boundary cells of `ds' of some dimension `dim'. // \pre ds_exists: ds!=0 // \pre valid_dim_range: (dim>=-1) && (dim<=3) void InitWithDataSetBoundaries(vtkBridgeDataSet *ds, int dim, int exterior_only); // 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 boundary cells of a cell. // \pre cell_exists: cell!=0 // \pre valid_dim_range: (dim==-1) || ((dim>=0)&&(dim<cell->GetDimension())) void InitWithCellBoundaries(vtkBridgeCell *cell, int dim); // Description: // Used internally by vtkBridgeCell. // Iterate on neighbors defined by `cells' over the dataset `ds'. // \pre cells_exist: cells!=0 // \pre ds_exists: ds!=0 void InitWithCells(vtkIdList *cells, vtkBridgeDataSet *ds); // 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: vtkBridgeCellIterator(); virtual ~vtkBridgeCellIterator(); vtkBridgeCellIteratorStrategy *CurrentIterator; vtkBridgeCellIteratorOnDataSet *IteratorOnDataSet; vtkBridgeCellIteratorOne *IteratorOneCell; vtkBridgeCellIteratorOnCellBoundaries * IteratorOnCellBoundaries; vtkBridgeCellIteratorOnCellList *IteratorOnCellList; vtkBridgeDataSet *DataSet; // the structure on which the objet iterates. vtkIdType Id; // the id at current position. int OneCell; // Is in one cell mode? vtkIdType Size; // size of the structure. vtkBridgeCell *Cell; // cell at current position. private: vtkBridgeCellIterator(const vtkBridgeCellIterator&); // Not implemented void operator=(const vtkBridgeCellIterator&); // Not implemented }; #endif