Vertex
VTKExamples/Cxx/GeometricObjects/Vertex
Description¶
The vertex is a primary zero-dimensional cell. It is defined by a single point.
Code¶
Vertex.cxx
#include <vtkActor.h> #include <vtkCellArray.h> #include <vtkNamedColors.h> #include <vtkPoints.h> #include <vtkPolyData.h> #include <vtkPolyDataMapper.h> #include <vtkProperty.h> #include <vtkRenderer.h> #include <vtkRenderWindow.h> #include <vtkRenderWindowInteractor.h> #include <vtkSmartPointer.h> #include <vtkVertex.h> int main(int, char *[]) { vtkSmartPointer<vtkNamedColors> colors = vtkSmartPointer<vtkNamedColors>::New(); vtkSmartPointer<vtkPoints> points = vtkSmartPointer<vtkPoints>::New(); points->InsertNextPoint(0,0,0); vtkSmartPointer<vtkVertex> vertex = vtkSmartPointer<vtkVertex>::New(); vertex->GetPointIds()->SetId(0, 0); vtkSmartPointer<vtkCellArray> vertices = vtkSmartPointer<vtkCellArray>::New(); vertices->InsertNextCell(vertex); vtkSmartPointer<vtkPolyData> polydata = vtkSmartPointer<vtkPolyData>::New(); polydata->SetPoints(points); polydata->SetVerts(vertices); // Setup actor and mapper vtkSmartPointer<vtkPolyDataMapper> mapper = vtkSmartPointer<vtkPolyDataMapper>::New(); mapper->SetInputData(polydata); vtkSmartPointer<vtkActor> actor = vtkSmartPointer<vtkActor>::New(); actor->SetMapper(mapper); actor->GetProperty()->SetPointSize(10); actor->GetProperty()->SetColor(colors->GetColor3d("Cyan").GetData()); // Setup render window, renderer, and interactor vtkSmartPointer<vtkRenderer> renderer = vtkSmartPointer<vtkRenderer>::New(); vtkSmartPointer<vtkRenderWindow> renderWindow = vtkSmartPointer<vtkRenderWindow>::New(); renderWindow->SetWindowName("Vertex"); renderWindow->AddRenderer(renderer); vtkSmartPointer<vtkRenderWindowInteractor> renderWindowInteractor = vtkSmartPointer<vtkRenderWindowInteractor>::New(); renderWindowInteractor->SetRenderWindow(renderWindow); renderer->AddActor(actor); renderer->SetBackground(colors->GetColor3d("DarkGreen").GetData()); renderWindow->Render(); renderWindowInteractor->Start(); return EXIT_SUCCESS; }
CMakeLists.txt¶
cmake_minimum_required(VERSION 2.8) PROJECT(Vertex) find_package(VTK REQUIRED) include(${VTK_USE_FILE}) add_executable(Vertex MACOSX_BUNDLE Vertex.cxx ) target_link_libraries(Vertex ${VTK_LIBRARIES})
Download and Build Vertex¶
Click here to download Vertex and its CMakeLists.txt file. Once the tarball Vertex.tar has been downloaded and extracted,
cd Vertex/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:
./Vertex
WINDOWS USERS
Be sure to add the VTK bin directory to your path. This will resolve the VTK dll's at run time.