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89 lines
2.6 KiB
89 lines
2.6 KiB
/*=========================================================================
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Program: Visualization Toolkit
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Module: $RCSfile: task1.cxx,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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#include "TaskParallelism.h"
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#include "vtkImageData.h"
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#include "vtkPolyData.h"
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#include "vtkPolyDataMapper.h"
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// Task 1 for TaskParallelism.
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// See TaskParallelism.cxx for more information.
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vtkPolyDataMapper* task1(vtkRenderWindow* renWin, double data,
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vtkCamera* cam)
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{
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double extent = data;
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int iextent = static_cast<int>(data);
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// The pipeline
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// Synthetic image source.
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vtkRTAnalyticSource* source1 = vtkRTAnalyticSource::New();
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source1->SetWholeExtent (-1*iextent, iextent, -1*iextent, iextent,
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-1*iextent, iextent );
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source1->SetCenter(0, 0, 0);
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source1->SetStandardDeviation( 0.5 );
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source1->SetMaximum( 255.0 );
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source1->SetXFreq( 60 );
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source1->SetXMag( 10 );
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source1->SetYFreq( 30 );
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source1->SetYMag( 18 );
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source1->SetZFreq( 40 );
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source1->SetZMag( 5 );
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source1->GetOutput()->SetSpacing(2.0/extent,2.0/extent,2.0/extent);
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// Iso-surfacing.
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vtkContourFilter* contour = vtkContourFilter::New();
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contour->SetInputConnection(source1->GetOutputPort());
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contour->SetNumberOfContours(1);
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contour->SetValue(0, 220);
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// Magnitude of the gradient vector.
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vtkImageGradientMagnitude* magn = vtkImageGradientMagnitude::New();
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magn->SetDimensionality(3);
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magn->SetInputConnection(source1->GetOutputPort());
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// Probe magnitude with iso-surface.
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vtkProbeFilter* probe = vtkProbeFilter::New();
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probe->SetInputConnection(contour->GetOutputPort());
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probe->SetSource(magn->GetOutput());
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probe->SpatialMatchOn();
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// Rendering objects.
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vtkPolyDataMapper* mapper = vtkPolyDataMapper::New();
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mapper->SetInput(probe->GetPolyDataOutput());
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mapper->SetScalarRange(50, 180);
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mapper->ImmediateModeRenderingOn();
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vtkActor* actor = vtkActor::New();
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actor->SetMapper(mapper);
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vtkRenderer* ren = vtkRenderer::New();
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renWin->AddRenderer(ren);
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ren->AddActor(actor);
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ren->SetActiveCamera( cam );
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// Cleanup
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source1->Delete();
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contour->Delete();
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magn->Delete();
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probe->Delete();
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actor->Delete();
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ren->Delete();
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return mapper;
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}
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