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/*=========================================================================
Program: Visualization Toolkit
Module: pipe2.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 "vtkActor.h"
#include "vtkContourFilter.h"
#include "vtkImageData.h"
#include "vtkInputPort.h"
#include "vtkPolyData.h"
#include "vtkPolyDataMapper.h"
#include "vtkRenderWindow.h"
#include "vtkRenderer.h"
#include "PipelineParallelism.h"
// Pipe 2 for PipelineParallelism.
// See PipelineParallelism.cxx for more information.
void pipe2(vtkMultiProcessController* vtkNotUsed(controller),
void* vtkNotUsed(arg))
{
// Input port
vtkInputPort* ip = vtkInputPort::New();
ip->SetRemoteProcessId(0);
ip->SetTag(11);
// Iso-surface
vtkContourFilter* cf = vtkContourFilter::New();
cf->SetInput(ip->GetImageDataOutput());
cf->SetNumberOfContours(1);
cf->SetValue(0, 220);
// Rendering objects
vtkPolyDataMapper* mapper = vtkPolyDataMapper::New();
mapper->SetInputConnection(cf->GetOutputPort());
vtkActor* actor = vtkActor::New();
actor->SetMapper(mapper);
vtkRenderer* ren = vtkRenderer::New();
ren->AddActor(actor);
vtkRenderWindow* renWin = vtkRenderWindow::New();
renWin->AddRenderer(ren);
// Normally, the Render() call on a RenderWindow() calls
// update on it's actors two times. This is not appropriate
// for this example because with each Update(), the data
// changes. For this reason, we will use a separate PolyData
// object and (shallow) copy the data to it.
vtkPolyData* pd = vtkPolyData::New();
mapper->SetInput(pd);
// Prime the pipeline. Tell the producer to start computing.
ip->Update();
// Get the first data, adjust camera appropriatly
cf->GetOutput()->Update();
pd->ShallowCopy(cf->GetOutput());
ren->ResetCamera();
// Display data
renWin->Render();
// Get more data. With every update the XFreq of the rtSource
// is increased.
for (int i=0; i<17; i++)
{
cf->GetOutput()->Update();
pd->ShallowCopy(cf->GetOutput());
// Display
renWin->Render();
}
// Tell the producer that we are done.
ip->GetController()->TriggerRMI(0, vtkMultiProcessController::BREAK_RMI_TAG);
pd->Delete();
ip->Delete();
cf->Delete();
mapper->Delete();
actor->Delete();
ren->Delete();
renWin->Delete();
}
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