ImageSliceMapper
VTKExamples/Cxx/Images/ImageSliceMapper
Code¶
ImageSliceMapper.cxx
#include <vtkVersion.h> #include <vtkImageData.h> #include <vtkSmartPointer.h> #include <vtkRenderWindow.h> #include <vtkRenderWindowInteractor.h> #include <vtkInteractorStyleImage.h> #include <vtkRenderer.h> #include <vtkImageMapper.h> #include <vtkImageSliceMapper.h> #include <vtkImageSlice.h> void CreateColorImage(vtkImageData*); int main(int, char *[]) { vtkSmartPointer<vtkImageData> colorImage = vtkSmartPointer<vtkImageData>::New(); CreateColorImage(colorImage); vtkSmartPointer<vtkImageSliceMapper> imageSliceMapper = vtkSmartPointer<vtkImageSliceMapper>::New(); #if VTK_MAJOR_VERSION <= 5 imageSliceMapper->SetInputConnection(colorImage->GetProducerPort()); #else imageSliceMapper->SetInputData(colorImage); #endif vtkSmartPointer<vtkImageSlice> imageSlice = vtkSmartPointer<vtkImageSlice>::New(); imageSlice->SetMapper(imageSliceMapper); // Setup renderers vtkSmartPointer<vtkRenderer> renderer = vtkSmartPointer<vtkRenderer>::New(); renderer->AddViewProp(imageSlice); renderer->ResetCamera(); // Setup render window vtkSmartPointer<vtkRenderWindow> renderWindow = vtkSmartPointer<vtkRenderWindow>::New(); renderWindow->SetSize(300, 300); renderWindow->AddRenderer(renderer); // Setup render window interactor vtkSmartPointer<vtkRenderWindowInteractor> renderWindowInteractor = vtkSmartPointer<vtkRenderWindowInteractor>::New(); vtkSmartPointer<vtkInteractorStyleImage> style = vtkSmartPointer<vtkInteractorStyleImage>::New(); renderWindowInteractor->SetInteractorStyle(style); // Render and start interaction renderWindowInteractor->SetRenderWindow(renderWindow); renderWindowInteractor->Initialize(); renderWindowInteractor->Start(); return EXIT_SUCCESS; } void CreateColorImage(vtkImageData* image) { image->SetDimensions(10, 10, 1); #if VTK_MAJOR_VERSION <= 5 image->SetNumberOfScalarComponents(3); image->SetScalarTypeToUnsignedChar(); image->AllocateScalars(); #else image->AllocateScalars(VTK_UNSIGNED_CHAR,3); #endif for(unsigned int x = 0; x < 10; x++) { for(unsigned int y = 0; y < 10; y++) { unsigned char* pixel = static_cast<unsigned char*>(image->GetScalarPointer(x,y,0)); pixel[0] = 255; pixel[1] = 0; pixel[2] = 255; } } }
CMakeLists.txt¶
cmake_minimum_required(VERSION 2.8) PROJECT(ImageSliceMapper) find_package(VTK REQUIRED) include(${VTK_USE_FILE}) add_executable(ImageSliceMapper MACOSX_BUNDLE ImageSliceMapper.cxx) target_link_libraries(ImageSliceMapper ${VTK_LIBRARIES})
Download and Build ImageSliceMapper¶
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The generation of tar files has not been ported to the new VTKExamples. Some tarballs may be missing or out-of-date.
Click here to download ImageSliceMapper and its CMakeLists.txt file. Once the tarball ImageSliceMapper.tar has been downloaded and extracted,
cd ImageSliceMapper/build
If VTK is installed:
cmake ..
If VTK is not installed but compiled on your system, you will need to specify the path to your VTK build:
cmake -DVTK_DIR:PATH=/home/me/vtk_build ..
Build the project:
make
and run it:
./ImageSliceMapper
WINDOWS USERS PLEASE NOTE: Be sure to add the VTK bin directory to your path. This will resolve the VTK dll's at run time.