VisualizeVTP
VTKExamples/Cxx/Visualization/VisualizeVTP
Description¶
This example shows how to load a vtp file and render it in an interactive window. The example accepts a .vtp file on the command line.
Code¶
VisualizeVTP.cxx
#include <vtkSmartPointer.h> #include <vtkActor.h> #include <vtkPolyDataMapper.h> #include <vtkRenderWindow.h> #include <vtkRenderWindowInteractor.h> #include <vtkRenderer.h> #include <vtkXMLPolyDataReader.h> int main (int argc, char *argv[]) { if (argc < 2) { std::cerr << "Usage: " << argv[0] << " Filename(.vtp)" << std::endl; return (EXIT_FAILURE); } vtkSmartPointer<vtkXMLPolyDataReader> reader = vtkSmartPointer<vtkXMLPolyDataReader>::New(); reader->SetFileName(argv[1]); // Create a mapper vtkSmartPointer<vtkPolyDataMapper> mapper = vtkSmartPointer<vtkPolyDataMapper>::New(); mapper->SetInputConnection(reader->GetOutputPort()); // Create an actor vtkSmartPointer<vtkActor> actor = vtkSmartPointer<vtkActor>::New(); actor->SetMapper(mapper); // 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); // Add the actors to the scene renderer->AddActor(actor); renderer->SetBackground(.3, .4, .5); // Render an image (lights and cameras are created automatically) renderWindow->Render(); // Begin mouse interaction renderWindowInteractor->Start(); return EXIT_SUCCESS; }
CMakeLists.txt¶
cmake_minimum_required(VERSION 2.8) PROJECT(VisualizeVTP) find_package(VTK REQUIRED) include(${VTK_USE_FILE}) add_executable(VisualizeVTP MACOSX_BUNDLE VisualizeVTP.cxx) target_link_libraries(VisualizeVTP ${VTK_LIBRARIES})
Download and Build VisualizeVTP¶
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 Some tarballs may be missing or out-of-date.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 VisualizeVTP and its CMakeLists.txt file. Once the tarball VisualizeVTP.tar has been downloaded and extracted,
cd VisualizeVTP/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:
./VisualizeVTP
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.