ImageRange3D
VTKExamples/Cxx/Images/ImageRange3D
Code¶
ImageRange3D.cxx
#include <vtkSmartPointer.h> #include <vtkRenderWindow.h> #include <vtkRenderWindowInteractor.h> #include <vtkInteractorStyleImage.h> #include <vtkRenderer.h> #include <vtkJPEGReader.h> #include <vtkImageMapper3D.h> #include <vtkImageActor.h> #include <vtkImageRange3D.h> #include <vtkImageCast.h> int main(int argc, char* argv[]) { // Parse input arguments if ( argc != 2 ) { std::cout << "Required parameters: Filename.jpg" << std::endl; return EXIT_FAILURE; } std::string inputFilename = argv[1]; // Read the image vtkSmartPointer<vtkJPEGReader> reader = vtkSmartPointer<vtkJPEGReader>::New(); reader->SetFileName(inputFilename.c_str()); reader->Update(); // Create actors vtkSmartPointer<vtkImageActor> originalActor = vtkSmartPointer<vtkImageActor>::New(); originalActor->GetMapper()->SetInputConnection( reader->GetOutputPort()); vtkSmartPointer<vtkImageRange3D> rangeFilter = vtkSmartPointer<vtkImageRange3D>::New(); rangeFilter->SetInputConnection(reader->GetOutputPort()); rangeFilter->SetKernelSize(5,5,5); rangeFilter->Update(); vtkSmartPointer<vtkImageCast> rangeCastFilter = vtkSmartPointer<vtkImageCast>::New(); rangeCastFilter->SetInputConnection(rangeFilter->GetOutputPort()); rangeCastFilter->SetOutputScalarTypeToUnsignedChar(); rangeCastFilter->Update(); vtkSmartPointer<vtkImageActor> rangeActor = vtkSmartPointer<vtkImageActor>::New(); rangeActor->GetMapper()->SetInputConnection( rangeCastFilter->GetOutputPort()); // Define viewport ranges // (xmin, ymin, xmax, ymax) double originalViewport[4] = {0.0, 0.0, 0.5, 1.0}; double rangeViewport[4] = {0.5, 0.0, 1.0, 1.0}; // Setup renderers vtkSmartPointer<vtkRenderer> originalRenderer = vtkSmartPointer<vtkRenderer>::New(); originalRenderer->SetViewport(originalViewport); originalRenderer->AddActor(originalActor); originalRenderer->ResetCamera(); originalRenderer->SetBackground(.4, .5, .6); vtkSmartPointer<vtkRenderer> rangeRenderer = vtkSmartPointer<vtkRenderer>::New(); rangeRenderer->SetViewport(rangeViewport); rangeRenderer->AddActor(rangeActor); rangeRenderer->ResetCamera(); rangeRenderer->SetBackground(.4, .5, .7); vtkSmartPointer<vtkRenderWindow> renderWindow = vtkSmartPointer<vtkRenderWindow>::New(); renderWindow->SetSize(600, 300); renderWindow->AddRenderer(originalRenderer); renderWindow->AddRenderer(rangeRenderer); vtkSmartPointer<vtkRenderWindowInteractor> renderWindowInteractor = vtkSmartPointer<vtkRenderWindowInteractor>::New(); vtkSmartPointer<vtkInteractorStyleImage> style = vtkSmartPointer<vtkInteractorStyleImage>::New(); renderWindowInteractor->SetInteractorStyle(style); renderWindowInteractor->SetRenderWindow(renderWindow); renderWindowInteractor->Initialize(); renderWindowInteractor->Start(); return EXIT_SUCCESS; }
CMakeLists.txt¶
cmake_minimum_required(VERSION 2.8) PROJECT(ImageRange3D) find_package(VTK REQUIRED) include(${VTK_USE_FILE}) add_executable(ImageRange3D MACOSX_BUNDLE ImageRange3D.cxx) target_link_libraries(ImageRange3D ${VTK_LIBRARIES})
Download and Build ImageRange3D¶
Danger
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 ImageRange3D and its CMakeLists.txt file. Once the tarball ImageRange3D.tar has been downloaded and extracted,
cd ImageRange3D/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:
./ImageRange3D
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.