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
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.