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96 lines
3.3 KiB
96 lines
3.3 KiB
/*=========================================================================
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Program: Visualization Toolkit
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Module: $RCSfile: vtkStructuredData.h,v $
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Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
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All rights reserved.
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See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
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This software is distributed WITHOUT ANY WARRANTY; without even
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the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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PURPOSE. See the above copyright notice for more information.
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=========================================================================*/
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// .NAME vtkStructuredData - abstract class for topologically regular data
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// .SECTION Description
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// vtkStructuredData is an abstract class that specifies an interface for
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// topologically regular data. Regular data is data that can be accessed
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// in rectangular fashion using an i-j-k index. A finite difference grid,
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// a volume, or a pixmap are all considered regular.
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#ifndef __vtkStructuredData_h
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#define __vtkStructuredData_h
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#include "vtkObject.h"
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class vtkIdList;
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#define VTK_UNCHANGED 0
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#define VTK_SINGLE_POINT 1
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#define VTK_X_LINE 2
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#define VTK_Y_LINE 3
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#define VTK_Z_LINE 4
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#define VTK_XY_PLANE 5
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#define VTK_YZ_PLANE 6
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#define VTK_XZ_PLANE 7
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#define VTK_XYZ_GRID 8
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#define VTK_EMPTY 9
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class VTK_COMMON_EXPORT vtkStructuredData : public vtkObject
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{
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public:
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vtkTypeRevisionMacro(vtkStructuredData,vtkObject);
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// Description:
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// Specify the dimensions of a regular, rectangular dataset. The input is
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// the new dimensions (inDim) and the current dimensions (dim). The function
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// returns the dimension of the dataset (0-3D). If the dimensions are
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// improperly specified a -1 is returned. If the dimensions are unchanged, a
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// value of 100 is returned.
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static int SetDimensions(int inDim[3], int dim[3]);
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static int SetExtent(int inExt[6], int ext[6]);
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// Description:
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// Return the topological dimension of the data (e.g., 0, 1, 2, or 3D).
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static int GetDataDimension(int dataDescription);
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// Description:
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// Get the points defining a cell. (See vtkDataSet for more info.)
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static void GetCellPoints(vtkIdType cellId, vtkIdList *ptIds,
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int dataDescription, int dim[3]);
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// Description:
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// Get the cells using a point. (See vtkDataSet for more info.)
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static void GetPointCells(vtkIdType ptId, vtkIdList *cellIds, int dim[3]);
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// Description:
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// Get the cells using the points ptIds, exclusive of the cell cellId.
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// (See vtkDataSet for more info.)
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static void GetCellNeighbors(vtkIdType cellId, vtkIdList *ptIds,
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vtkIdList *cellIds, int dim[3]);
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// Description:
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// Given a location in structured coordinates (i-j-k), and the dimensions
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// of the structured dataset, return the point id.
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static vtkIdType ComputePointId(int dim[3], int ijk[3]) {
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return (ijk[2]*dim[1] + ijk[1])*dim[0] + ijk[0];}
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// Description:
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// Given a location in structured coordinates (i-j-k), and the dimensions
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// of the structured dataset, return the cell id.
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static vtkIdType ComputeCellId(int dim[3], int ijk[3]) {
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return (ijk[2]*(dim[1]-1) + ijk[1])*(dim[0]-1) + ijk[0];}
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protected:
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vtkStructuredData() {};
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~vtkStructuredData() {};
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private:
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vtkStructuredData(const vtkStructuredData&); // Not implemented.
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void operator=(const vtkStructuredData&); // Not implemented.
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};
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#endif
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