DijkstraGraphGeodesicPath
Repository source: DijkstraGraphGeodesicPath
Other languages
See (CSharp)
Question
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Code¶
DijkstraGraphGeodesicPath.cxx
#include <vtkActor.h>
#include <vtkCamera.h>
#include <vtkDijkstraGraphGeodesicPath.h>
#include <vtkNamedColors.h>
#include <vtkNew.h>
#include <vtkPolyDataMapper.h>
#include <vtkProperty.h>
#include <vtkRenderWindow.h>
#include <vtkRenderWindowInteractor.h>
#include <vtkRenderer.h>
#include <vtkSphereSource.h>
int main(int, char*[])
{
vtkNew<vtkNamedColors> colors;
// Create a sphere.
vtkNew<vtkSphereSource> sphereSource;
sphereSource->Update();
vtkNew<vtkDijkstraGraphGeodesicPath> dijkstra;
dijkstra->SetInputConnection(sphereSource->GetOutputPort());
dijkstra->SetStartVertex(0);
// dijkstra->SetEndVertex(10);
dijkstra->SetEndVertex(7);
dijkstra->Update();
// Create a mapper and actor.
vtkNew<vtkPolyDataMapper> pathMapper;
pathMapper->SetInputConnection(dijkstra->GetOutputPort());
vtkNew<vtkActor> pathActor;
pathActor->SetMapper(pathMapper);
pathActor->GetProperty()->SetColor(colors->GetColor3d("HotPink").GetData());
pathActor->GetProperty()->SetLineWidth(4);
// Create a mapper and actor.
vtkNew<vtkPolyDataMapper> mapper;
mapper->SetInputConnection(sphereSource->GetOutputPort());
vtkNew<vtkActor> actor;
actor->SetMapper(mapper);
actor->GetProperty()->SetColor(colors->GetColor3d("MistyRose").GetData());
// Create a renderer, render window, and interactor.
vtkNew<vtkRenderer> renderer;
vtkNew<vtkRenderWindow> renderWindow;
renderWindow->AddRenderer(renderer);
renderWindow->SetWindowName("DijkstraGraphGeodesicPath");
vtkNew<vtkRenderWindowInteractor> renderWindowInteractor;
renderWindowInteractor->SetRenderWindow(renderWindow);
// Add the actor to the scene.
renderer->AddActor(actor);
renderer->AddActor(pathActor);
renderer->SetBackground(colors->GetColor3d("MidnightBlue").GetData());
auto camera = renderer->GetActiveCamera();
camera->SetPosition(2.9, -1.6, 0.3);
camera->SetFocalPoint(0, 0, 0);
camera->SetViewUp(0, 0, 1);
camera->SetDistance(3);
camera->Zoom(1.5);
// Render and interact.
renderWindow->Render();
renderWindowInteractor->Start();
return EXIT_SUCCESS;
}
CMakeLists.txt¶
cmake_minimum_required(VERSION 3.12 FATAL_ERROR)
project(DijkstraGraphGeodesicPath)
find_package(VTK COMPONENTS
CommonColor
CommonCore
FiltersModeling
FiltersSources
InteractionStyle
RenderingContextOpenGL2
RenderingCore
RenderingFreeType
RenderingGL2PSOpenGL2
RenderingOpenGL2
)
if (NOT VTK_FOUND)
message(FATAL_ERROR "DijkstraGraphGeodesicPath: Unable to find the VTK build folder.")
endif()
# Prevent a "command line is too long" failure in Windows.
set(CMAKE_NINJA_FORCE_RESPONSE_FILE "ON" CACHE BOOL "Force Ninja to use response files.")
add_executable(DijkstraGraphGeodesicPath MACOSX_BUNDLE DijkstraGraphGeodesicPath.cxx )
target_link_libraries(DijkstraGraphGeodesicPath PRIVATE ${VTK_LIBRARIES}
)
# vtk_module_autoinit is needed
vtk_module_autoinit(
TARGETS DijkstraGraphGeodesicPath
MODULES ${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
Be sure to add the VTK bin directory to your path. This will resolve the VTK dll's at run time.