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90 lines
3.1 KiB
C++
90 lines
3.1 KiB
C++
/*=========================================================================
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Program: Visualization Toolkit
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Module: vtkTrivialProducer.h
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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 vtkTrivialProducer - Producer for stand-alone data objects.
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// .SECTION Description
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// vtkTrivialProducer allows stand-alone data objects to be connected
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// as inputs in a pipeline. All data objects that are connected to a
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// pipeline involving vtkAlgorithm must have a producer. This trivial
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// producer allows data objects that are hand-constructed in a program
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// without another vtk producer to be connected.
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#ifndef vtkTrivialProducer_h
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#define vtkTrivialProducer_h
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#include "vtkCommonExecutionModelModule.h" // For export macro
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#include "vtkAlgorithm.h"
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class vtkDataObject;
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class VTKCOMMONEXECUTIONMODEL_EXPORT vtkTrivialProducer : public vtkAlgorithm
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{
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public:
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static vtkTrivialProducer *New();
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vtkTypeMacro(vtkTrivialProducer,vtkAlgorithm);
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void PrintSelf(ostream& os, vtkIndent indent);
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// Description:
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// Process upstream/downstream requests trivially. The associated
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// output data object is never modified, but it is queried to
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// fulfill requests.
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virtual int ProcessRequest(vtkInformation*,
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vtkInformationVector**,
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vtkInformationVector*);
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// Description:
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// Set the data object that is "produced" by this producer. It is
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// never really modified.
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virtual void SetOutput(vtkDataObject* output);
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// Description:
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// The modified time of this producer is the newer of this object or
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// the assigned output.
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virtual unsigned long GetMTime();
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// Description:
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// Set the whole extent to use for the data this producer is producing.
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// This may be different than the extent of the output data when
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// the trivial producer is used in parallel.
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vtkSetVector6Macro(WholeExtent, int);
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vtkGetVector6Macro(WholeExtent, int);
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// Description:
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// This method can be used to copy meta-data from an existing data
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// object to an information object. For example, whole extent,
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// image data spacing, origin etc.
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static void FillOutputDataInformation(vtkDataObject* output,
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vtkInformation* outInfo);
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protected:
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vtkTrivialProducer();
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~vtkTrivialProducer();
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virtual int FillInputPortInformation(int, vtkInformation*);
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virtual int FillOutputPortInformation(int, vtkInformation*);
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virtual vtkExecutive* CreateDefaultExecutive();
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// The real data object.
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vtkDataObject* Output;
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int WholeExtent[6];
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virtual void ReportReferences(vtkGarbageCollector*);
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private:
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vtkTrivialProducer(const vtkTrivialProducer&); // Not implemented.
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void operator=(const vtkTrivialProducer&); // Not implemented.
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};
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#endif
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