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