ImageContinuousDilate3D
VTKExamples/Cxx/Images/ImageContinuousDilate3D
Code¶
ImageContinuousDilate3D.cxx
#include <vtkVersion.h> #include <vtkSmartPointer.h> #include <vtkProperty.h> #include <vtkDataSetMapper.h> #include <vtkImageData.h> #include <vtkImageContinuousDilate3D.h> #include <vtkImageCanvasSource2D.h> #include <vtkPNGReader.h> #include <vtkActor.h> #include <vtkRenderWindow.h> #include <vtkRenderWindowInteractor.h> #include <vtkRenderer.h> #include <vtkImageActor.h> int main(int argc, char *argv[]) { vtkSmartPointer<vtkImageData> image = vtkSmartPointer<vtkImageData>::New(); if(argc < 2) { // Create an image vtkSmartPointer<vtkImageCanvasSource2D> source = vtkSmartPointer<vtkImageCanvasSource2D>::New(); source->SetScalarTypeToUnsignedChar(); source->SetExtent(0, 200, 0, 200, 0, 0); source->SetDrawColor(0,0,0); source->FillBox(0,200,0,200); source->SetDrawColor(255,0,0); source->FillBox(100,150,100,150); source->Update(); image->ShallowCopy(source->GetOutput()); } else { vtkSmartPointer<vtkPNGReader> reader = vtkSmartPointer<vtkPNGReader>::New(); reader->SetFileName(argv[1]); reader->Update(); image->ShallowCopy(reader->GetOutput()); } vtkSmartPointer<vtkImageContinuousDilate3D> dilateFilter = vtkSmartPointer<vtkImageContinuousDilate3D>::New(); #if VTK_MAJOR_VERSION <= 5 dilateFilter->SetInputConnection(image->GetProducerPort()); #else dilateFilter->SetInputData(image); #endif dilateFilter->SetKernelSize(10,10,1); dilateFilter->Update(); vtkSmartPointer<vtkDataSetMapper> originalMapper = vtkSmartPointer<vtkDataSetMapper>::New(); #if VTK_MAJOR_VERSION <= 5 originalMapper->SetInputConnection(image->GetProducerPort()); #else originalMapper->SetInputData(image); #endif originalMapper->Update(); vtkSmartPointer<vtkActor> originalActor = vtkSmartPointer<vtkActor>::New(); originalActor->SetMapper(originalMapper); vtkSmartPointer<vtkDataSetMapper> dilatedMapper = vtkSmartPointer<vtkDataSetMapper>::New(); dilatedMapper->SetInputConnection(dilateFilter->GetOutputPort()); dilatedMapper->Update(); vtkSmartPointer<vtkActor> dilatedActor = vtkSmartPointer<vtkActor>::New(); dilatedActor->SetMapper(dilatedMapper); // Visualize double leftViewport[4] = {0.0, 0.0, 0.5, 1.0}; double rightViewport[4] = {0.5, 0.0, 1.0, 1.0}; vtkSmartPointer<vtkRenderWindow> renderWindow = vtkSmartPointer<vtkRenderWindow>::New(); renderWindow->SetSize(600, 300); vtkSmartPointer<vtkRenderWindowInteractor> interactor = vtkSmartPointer<vtkRenderWindowInteractor>::New(); interactor->SetRenderWindow(renderWindow); vtkSmartPointer<vtkRenderer> leftRenderer = vtkSmartPointer<vtkRenderer>::New(); renderWindow->AddRenderer(leftRenderer); leftRenderer->SetViewport(leftViewport); leftRenderer->SetBackground(.6, .5, .4); vtkSmartPointer<vtkRenderer> rightRenderer = vtkSmartPointer<vtkRenderer>::New(); renderWindow->AddRenderer(rightRenderer); rightRenderer->SetViewport(rightViewport); rightRenderer->SetBackground(.4, .5, .6); leftRenderer->AddActor(originalActor); rightRenderer->AddActor(dilatedActor); leftRenderer->ResetCamera(); rightRenderer->SetActiveCamera(leftRenderer->GetActiveCamera()); renderWindow->Render(); interactor->Start(); return EXIT_SUCCESS; }
CMakeLists.txt¶
cmake_minimum_required(VERSION 2.8) PROJECT(ImageContinuousDilate3D) find_package(VTK REQUIRED) include(${VTK_USE_FILE}) add_executable(ImageContinuousDilate3D MACOSX_BUNDLE ImageContinuousDilate3D.cxx) target_link_libraries(ImageContinuousDilate3D ${VTK_LIBRARIES})
Download and Build ImageContinuousDilate3D¶
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 ImageContinuousDilate3D and its CMakeLists.txt file. Once the tarball ImageContinuousDilate3D.tar has been downloaded and extracted,
cd ImageContinuousDilate3D/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:
./ImageContinuousDilate3D
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.