DistanceWidget
VTKExamples/Cxx/Widgets/DistanceWidget
Description¶
- Contributed by Arnaud Gelas
Click two points to see the distance between them.
Code¶
DistanceWidget.cxx
#include <vtkRenderWindow.h> #include <vtkRenderer.h> #include <vtkRenderWindowInteractor.h> #include <vtkSmartPointer.h> #include <vtkDistanceWidget.h> #include <vtkDistanceRepresentation.h> int main(int, char *[]) { // A renderer and render window vtkSmartPointer<vtkRenderer> renderer = vtkSmartPointer<vtkRenderer>::New(); vtkSmartPointer<vtkRenderWindow> renderWindow = vtkSmartPointer<vtkRenderWindow>::New(); renderWindow->AddRenderer(renderer); // An interactor vtkSmartPointer<vtkRenderWindowInteractor> renderWindowInteractor = vtkSmartPointer<vtkRenderWindowInteractor>::New(); renderWindowInteractor->SetRenderWindow(renderWindow); vtkSmartPointer<vtkDistanceWidget> distanceWidget = vtkSmartPointer<vtkDistanceWidget>::New(); distanceWidget->SetInteractor(renderWindowInteractor); distanceWidget->CreateDefaultRepresentation(); static_cast<vtkDistanceRepresentation *>(distanceWidget->GetRepresentation()) ->SetLabelFormat("%-#6.3g mm"); // Render an image (lights and cameras are created automatically) renderWindow->Render(); renderWindowInteractor->Initialize(); renderWindow->Render(); distanceWidget->On(); // Begin mouse interaction renderWindowInteractor->Start(); return EXIT_SUCCESS; }
CMakeLists.txt¶
cmake_minimum_required(VERSION 2.8) PROJECT(DistanceWidget) find_package(VTK REQUIRED) include(${VTK_USE_FILE}) add_executable(DistanceWidget MACOSX_BUNDLE DistanceWidget.cxx) target_link_libraries(DistanceWidget ${VTK_LIBRARIES})
Download and Build DistanceWidget¶
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 Some tarballs may be missing or out-of-date.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 DistanceWidget and its CMakeLists.txt file. Once the tarball DistanceWidget.tar has been downloaded and extracted,
cd DistanceWidget/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:
./DistanceWidget
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.