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128 lines
4.6 KiB
128 lines
4.6 KiB
/*=========================================================================
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Program: Visualization Toolkit
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Module: $RCSfile: vtkAppendPolyData.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 vtkAppendPolyData - appends one or more polygonal datasets together
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// .SECTION Description
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//
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// vtkAppendPolyData is a filter that appends one of more polygonal datasets
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// into a single polygonal dataset. All geometry is extracted and appended,
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// but point and cell attributes (i.e., scalars, vectors, normals) are
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// extracted and appended only if all datasets have the point and/or cell
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// attributes available. (For example, if one dataset has point scalars but
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// another does not, point scalars will not be appended.)
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// .SECTION See Also
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// vtkAppendFilter
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#ifndef __vtkAppendPolyData_h
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#define __vtkAppendPolyData_h
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#include "vtkPolyDataAlgorithm.h"
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class vtkCellArray;
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class vtkDataArray;
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class vtkPoints;
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class vtkPolyData;
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class VTK_GRAPHICS_EXPORT vtkAppendPolyData : public vtkPolyDataAlgorithm
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{
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public:
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static vtkAppendPolyData *New();
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vtkTypeRevisionMacro(vtkAppendPolyData,vtkPolyDataAlgorithm);
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void PrintSelf(ostream& os, vtkIndent indent);
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// Description:
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// UserManagedInputs allows the user to set inputs by number instead of
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// using the AddInput/RemoveInput functions. Calls to
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// SetNumberOfInputs/SetInputByNumber should not be mixed with calls
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// to AddInput/RemoveInput. By default, UserManagedInputs is false.
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vtkSetMacro(UserManagedInputs,int);
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vtkGetMacro(UserManagedInputs,int);
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vtkBooleanMacro(UserManagedInputs,int);
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// Description:
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// Add a dataset to the list of data to append. Should not be
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// used when UserManagedInputs is true, use SetInputByNumber instead.
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void AddInput(vtkPolyData *);
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// Description:
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// Remove a dataset from the list of data to append. Should not be
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// used when UserManagedInputs is true, use SetInputByNumber (NULL) instead.
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void RemoveInput(vtkPolyData *);
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// Description:
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// Get any input of this filter.
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//BTX
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vtkPolyData *GetInput(int idx);
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vtkPolyData *GetInput() { return this->GetInput( 0 ); };
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//ETX
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// Description:
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// Directly set(allocate) number of inputs, should only be used
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// when UserManagedInputs is true.
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void SetNumberOfInputs(int num);
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// Set Nth input, should only be used when UserManagedInputs is true.
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void SetInputByNumber(int num, vtkPolyData *input);
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// Description:
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// ParallelStreaming is for a particular application.
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// It causes this filter to ask for a different piece
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// from each of its inputs. If all the inputs are the same,
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// then the output of this append filter is the whole dataset
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// pieced back together. Duplicate points are create
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// along the seams. The purpose of this feature is to get
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// data parallelism at a course scale. Each of the inputs
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// can be generated in a different process at the same time.
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vtkSetMacro(ParallelStreaming, int);
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vtkGetMacro(ParallelStreaming, int);
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vtkBooleanMacro(ParallelStreaming, int);
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protected:
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vtkAppendPolyData();
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~vtkAppendPolyData();
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// Flag for selecting parallel streaming behavior
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int ParallelStreaming;
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// Usual data generation method
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virtual int RequestData(vtkInformation *,
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vtkInformationVector **, vtkInformationVector *);
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virtual int RequestUpdateExtent(vtkInformation *,
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vtkInformationVector **, vtkInformationVector *);
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virtual int FillInputPortInformation(int, vtkInformation *);
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// An efficient way to append data/cells.
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void AppendData(vtkDataArray *dest, vtkDataArray *src, vtkIdType offset);
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void AppendDifferentPoints(vtkDataArray *dest, vtkDataArray *src,
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vtkIdType offset);
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vtkIdType *AppendCells(vtkIdType *pDest, vtkCellArray *src,
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vtkIdType offset);
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private:
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// hide the superclass' AddInput() from the user and the compiler
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void AddInput(vtkDataObject *)
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{ vtkErrorMacro( << "AddInput() must be called with a vtkPolyData not a vtkDataObject."); };
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int UserManagedInputs;
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private:
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vtkAppendPolyData(const vtkAppendPolyData&); // Not implemented.
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void operator=(const vtkAppendPolyData&); // Not implemented.
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};
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#endif
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