DijkstraGraphGeodesicPath
VTKExamples/Cxx/PolyData/DijkstraGraphGeodesicPath
Code
DijkstraGraphGeodesicPath.cxx
#include <vtkSphereSource.h>
#include <vtkProperty.h>
#include <vtkPolyData.h>
#include <vtkSmartPointer.h>
#include <vtkPolyDataMapper.h>
#include <vtkActor.h>
#include <vtkRenderWindow.h>
#include <vtkRenderer.h>
#include <vtkRenderWindowInteractor.h>
#include <vtkDijkstraGraphGeodesicPath.h>
int main(int , char *[])
{
// Create a sphere
vtkSmartPointer<vtkSphereSource> sphereSource =
vtkSmartPointer<vtkSphereSource>::New();
sphereSource->Update();
vtkSmartPointer<vtkDijkstraGraphGeodesicPath> dijkstra =
vtkSmartPointer<vtkDijkstraGraphGeodesicPath>::New();
dijkstra->SetInputConnection(sphereSource->GetOutputPort());
dijkstra->SetStartVertex(0);
dijkstra->SetEndVertex(10);
dijkstra->Update();
// Create a mapper and actor
vtkSmartPointer<vtkPolyDataMapper> pathMapper =
vtkSmartPointer<vtkPolyDataMapper>::New();
pathMapper->SetInputConnection(dijkstra->GetOutputPort());
vtkSmartPointer<vtkActor> pathActor =
vtkSmartPointer<vtkActor>::New();
pathActor->SetMapper(pathMapper);
pathActor->GetProperty()->SetColor(1,0,0); // Red
pathActor->GetProperty()->SetLineWidth(4);
// Create a mapper and actor
vtkSmartPointer<vtkPolyDataMapper> mapper =
vtkSmartPointer<vtkPolyDataMapper>::New();
mapper->SetInputConnection(sphereSource->GetOutputPort());
vtkSmartPointer<vtkActor> actor =
vtkSmartPointer<vtkActor>::New();
actor->SetMapper(mapper);
//Create a renderer, render window, and interactor
vtkSmartPointer<vtkRenderer> renderer =
vtkSmartPointer<vtkRenderer>::New();
vtkSmartPointer<vtkRenderWindow> renderWindow =
vtkSmartPointer<vtkRenderWindow>::New();
renderWindow->AddRenderer(renderer);
vtkSmartPointer<vtkRenderWindowInteractor> renderWindowInteractor =
vtkSmartPointer<vtkRenderWindowInteractor>::New();
renderWindowInteractor->SetRenderWindow(renderWindow);
//Add the actor to the scene
renderer->AddActor(actor);
renderer->AddActor(pathActor);
renderer->SetBackground(.3, .6, .3); // Background color green
//Render and interact
renderWindow->Render();
renderWindowInteractor->Start();
return EXIT_SUCCESS;
}
CMakeLists.txt
cmake_minimum_required(VERSION 2.8)
PROJECT(DijkstraGraphGeodesicPath)
find_package(VTK REQUIRED)
include(${VTK_USE_FILE})
add_executable(DijkstraGraphGeodesicPath MACOSX_BUNDLE DijkstraGraphGeodesicPath.cxx)
target_link_libraries(DijkstraGraphGeodesicPath ${VTK_LIBRARIES})
Download and Build DijkstraGraphGeodesicPath
Click here to download DijkstraGraphGeodesicPath and its CMakeLists.txt file. Once the tarball DijkstraGraphGeodesicPath.tar has been downloaded and extracted,
cd DijkstraGraphGeodesicPath/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:
./DijkstraGraphGeodesicPath
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.