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RenderingVolumeFromDICOM.cpp
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RenderingVolumeFromDICOM.cpp
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#include <vtkSmartPointer.h>
#include <vtkImageData.h>
#include <vtkDICOMImageReader.h>
#include <vtkRenderWindow.h>
#include <vtkRenderer.h>
#include <vtkInteractorStyleTrackballCamera.h>
#include <vtkRenderWindowInteractor.h>
#include <vtkSmartVolumeMapper.h>
#include <vtkVolumeProperty.h>
#include <vtkPiecewiseFunction.h>
#include <vtkColorTransferFunction.h>
int main(int argc, char *argv[]) {
if (argc < 2) {
cout << "Usage: " << argv[0] << " <dicom folder>" << endl;
return EXIT_SUCCESS;
}
vtkSmartPointer<vtkImageData> imageData = vtkSmartPointer<vtkImageData>::New();
vtkSmartPointer<vtkDICOMImageReader> reader = vtkSmartPointer<vtkDICOMImageReader>::New();
vtkSmartPointer<vtkRenderWindow> renderWindow = vtkSmartPointer<vtkRenderWindow>::New();
vtkSmartPointer<vtkRenderer> renderer = vtkSmartPointer<vtkRenderer>::New();
vtkSmartPointer<vtkInteractorStyleTrackballCamera> interactorStyle = vtkSmartPointer<vtkInteractorStyleTrackballCamera>::New();
vtkSmartPointer<vtkRenderWindowInteractor> renderWindowInteractor = vtkSmartPointer<vtkRenderWindowInteractor>::New();
vtkSmartPointer<vtkSmartVolumeMapper> volumeMapper = vtkSmartPointer<vtkSmartVolumeMapper>::New();
vtkSmartPointer<vtkVolumeProperty> volumeProperty = vtkSmartPointer<vtkVolumeProperty>::New();
vtkSmartPointer<vtkPiecewiseFunction> gradientOpacity = vtkSmartPointer<vtkPiecewiseFunction>::New();
vtkSmartPointer<vtkPiecewiseFunction> scalarOpacity = vtkSmartPointer<vtkPiecewiseFunction>::New();
vtkSmartPointer<vtkColorTransferFunction> color = vtkSmartPointer<vtkColorTransferFunction>::New();
vtkSmartPointer<vtkVolume> volume = vtkSmartPointer<vtkVolume>::New();
reader->SetDirectoryName(argv[1]);
reader->Update();
imageData->ShallowCopy(reader->GetOutput());
renderer->SetBackground(0.1, 0.2, 0.3);
renderWindow->AddRenderer(renderer);
renderWindow->SetSize(500, 500);
renderWindowInteractor->SetInteractorStyle(interactorStyle);
renderWindowInteractor->SetRenderWindow(renderWindow);
volumeMapper->SetBlendModeToComposite();
volumeMapper->SetRequestedRenderModeToGPU();
volumeMapper->SetInputData(imageData);
volumeProperty->ShadeOn();
volumeProperty->SetInterpolationTypeToLinear();
volumeProperty->SetAmbient(0.1);
volumeProperty->SetDiffuse(0.9);
volumeProperty->SetSpecular(0.2);
volumeProperty->SetSpecularPower(10.0);
gradientOpacity->AddPoint(0.0, 0.0);
gradientOpacity->AddPoint(2000.0, 1.0);
volumeProperty->SetGradientOpacity(gradientOpacity);
scalarOpacity->AddPoint(-800.0, 0.0);
scalarOpacity->AddPoint(-750.0, 1.0);
scalarOpacity->AddPoint(-350.0, 1.0);
scalarOpacity->AddPoint(-300.0, 0.0);
scalarOpacity->AddPoint(-200.0, 0.0);
scalarOpacity->AddPoint(-100.0, 1.0);
scalarOpacity->AddPoint(1000.0, 0.0);
scalarOpacity->AddPoint(2750.0, 0.0);
scalarOpacity->AddPoint(2976.0, 1.0);
scalarOpacity->AddPoint(3000.0, 0.0);
volumeProperty->SetScalarOpacity(scalarOpacity);
color->AddRGBPoint(-750.0, 0.08, 0.05, 0.03);
color->AddRGBPoint(-350.0, 0.39, 0.25, 0.16);
color->AddRGBPoint(-200.0, 0.80, 0.80, 0.80);
color->AddRGBPoint(2750.0, 0.70, 0.70, 0.70);
color->AddRGBPoint(3000.0, 0.35, 0.35, 0.35);
volumeProperty->SetColor(color);
volume->SetMapper(volumeMapper);
volume->SetProperty(volumeProperty);
renderer->AddVolume(volume);
renderer->ResetCamera();
renderWindow->Render();
renderWindowInteractor->Start();
return EXIT_SUCCESS;
}