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/*=========================================================================
Program: Visualization Toolkit
Module: vtkStructuredGridAlgorithm.cxx
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.
=========================================================================*/
#include "vtkStructuredGridAlgorithm.h"
#include "vtkCommand.h"
#include "vtkInformation.h"
#include "vtkInformationVector.h"
#include "vtkObjectFactory.h"
#include "vtkStreamingDemandDrivenPipeline.h"
#include "vtkStructuredGrid.h"
#include "vtkTrivialProducer.h"
vtkStandardNewMacro(vtkStructuredGridAlgorithm);
//----------------------------------------------------------------------------
vtkStructuredGridAlgorithm::vtkStructuredGridAlgorithm()
{
// by default assume filters have one input and one output
// subclasses that deviate should modify this setting
this->SetNumberOfInputPorts(1);
this->SetNumberOfOutputPorts(1);
}
//----------------------------------------------------------------------------
vtkStructuredGridAlgorithm::~vtkStructuredGridAlgorithm()
{
}
//----------------------------------------------------------------------------
void vtkStructuredGridAlgorithm::PrintSelf(ostream& os, vtkIndent indent)
{
this->Superclass::PrintSelf(os, indent);
}
//----------------------------------------------------------------------------
vtkStructuredGrid* vtkStructuredGridAlgorithm::GetOutput()
{
return this->GetOutput(0);
}
//----------------------------------------------------------------------------
vtkStructuredGrid* vtkStructuredGridAlgorithm::GetOutput(int port)
{
return vtkStructuredGrid::SafeDownCast(this->GetOutputDataObject(port));
}
//----------------------------------------------------------------------------
void vtkStructuredGridAlgorithm::SetOutput(vtkDataObject* d)
{
this->GetExecutive()->SetOutputData(0, d);
}
//----------------------------------------------------------------------------
vtkDataObject* vtkStructuredGridAlgorithm::GetInput()
{
return this->GetInput(0);
}
//----------------------------------------------------------------------------
vtkDataObject* vtkStructuredGridAlgorithm::GetInput(int port)
{
return this->GetExecutive()->GetInputData(port, 0);
}
//----------------------------------------------------------------------------
vtkStructuredGrid* vtkStructuredGridAlgorithm::GetStructuredGridInput(int port)
{
return vtkStructuredGrid::SafeDownCast(this->GetInput(port));
}
//----------------------------------------------------------------------------
int vtkStructuredGridAlgorithm::ProcessRequest(vtkInformation* request,
vtkInformationVector** inputVector,
vtkInformationVector* outputVector)
{
// generate the data
if(request->Has(vtkDemandDrivenPipeline::REQUEST_DATA()))
{
return this->RequestData(request, inputVector, outputVector);
}
if(request->Has(vtkStreamingDemandDrivenPipeline::REQUEST_UPDATE_EXTENT()))
{
return this->RequestUpdateExtent(request, inputVector, outputVector);
}
// execute information
if(request->Has(vtkDemandDrivenPipeline::REQUEST_INFORMATION()))
{
return this->RequestInformation(request, inputVector, outputVector);
}
return this->Superclass::ProcessRequest(request, inputVector, outputVector);
}
//----------------------------------------------------------------------------
int vtkStructuredGridAlgorithm::FillOutputPortInformation(
int vtkNotUsed(port), vtkInformation* info)
{
// now add our info
info->Set(vtkDataObject::DATA_TYPE_NAME(), "vtkStructuredGrid");
return 1;
}
//----------------------------------------------------------------------------
int vtkStructuredGridAlgorithm::FillInputPortInformation(
int vtkNotUsed(port), vtkInformation* info)
{
info->Set(vtkAlgorithm::INPUT_REQUIRED_DATA_TYPE(), "vtkStructuredGrid");
return 1;
}
//----------------------------------------------------------------------------
int vtkStructuredGridAlgorithm::RequestInformation(
vtkInformation* vtkNotUsed(request),
vtkInformationVector** vtkNotUsed(inputVector),
vtkInformationVector* vtkNotUsed(outputVector))
{
// do nothing let subclasses handle it
return 1;
}
//----------------------------------------------------------------------------
// This is the superclasses style of Execute method. Convert it into
// an imaging style Execute method.
int vtkStructuredGridAlgorithm::RequestData(
vtkInformation* request,
vtkInformationVector** vtkNotUsed( inputVector ),
vtkInformationVector* outputVector)
{
// the default implimentation is to do what the old pipeline did find what
// output is requesting the data, and pass that into ExecuteData
// which output port did the request come from
int outputPort =
request->Get(vtkDemandDrivenPipeline::FROM_OUTPUT_PORT());
// if output port is negative then that means this filter is calling the
// update directly, in that case just assume port 0
if (outputPort == -1)
{
outputPort = 0;
}
// get the data object
vtkInformation *outInfo =
outputVector->GetInformationObject(outputPort);
// call ExecuteData
this->ExecuteData( outInfo->Get(vtkDataObject::DATA_OBJECT()) );
return 1;
}
//----------------------------------------------------------------------------
// Assume that any source that implements ExecuteData
// can handle an empty extent.
void vtkStructuredGridAlgorithm::ExecuteData(vtkDataObject *output)
{
// I want to find out if the requested extent is empty.
if (output && this->UpdateExtentIsEmpty(output))
{
output->Initialize();
return;
}
this->Execute();
}
//----------------------------------------------------------------------------
void vtkStructuredGridAlgorithm::Execute()
{
vtkErrorMacro(<< "Definition of Execute() method should be in subclass and you should really use the ExecuteData(vtkInformation *request,...) signature instead");
}
//----------------------------------------------------------------------------
void vtkStructuredGridAlgorithm::SetInput(vtkDataObject* input)
{
this->SetInput(0, input);
}
//----------------------------------------------------------------------------
void vtkStructuredGridAlgorithm::SetInput(int index, vtkDataObject* input)
{
if(input)
{
this->SetInputConnection(index, input->GetProducerPort());
}
else
{
// Setting a NULL input removes the connection.
this->SetInputConnection(index, 0);
}
}
//----------------------------------------------------------------------------
void vtkStructuredGridAlgorithm::AddInput(vtkDataObject* input)
{
this->AddInput(0, input);
}
//----------------------------------------------------------------------------
void vtkStructuredGridAlgorithm::AddInput(int index, vtkDataObject* input)
{
if(input)
{
this->AddInputConnection(index, input->GetProducerPort());
}
}
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