AddCell
VTKExamples/Cxx/Meshes/AddCell
Code¶
AddCell.cxx
#include <vtkSmartPointer.h> #include <vtkTriangle.h> #include <vtkCellArray.h> #include <vtkPolyData.h> int main(int , char *[]) { // Create a triangle vtkSmartPointer<vtkPoints> points = vtkSmartPointer<vtkPoints>::New(); points->InsertNextPoint ( 1.0, 0.0, 0.0 ); points->InsertNextPoint ( 0.0, 0.0, 0.0 ); points->InsertNextPoint ( 0.0, 1.0, 0.0 ); vtkSmartPointer<vtkTriangle> triangle = vtkSmartPointer<vtkTriangle>::New(); triangle->GetPointIds()->SetId ( 0, 0 ); triangle->GetPointIds()->SetId ( 1, 1 ); triangle->GetPointIds()->SetId ( 2, 2 ); vtkSmartPointer<vtkCellArray> triangles = vtkSmartPointer<vtkCellArray>::New(); triangles->InsertNextCell ( triangle ); // Create a polydata object vtkSmartPointer<vtkPolyData> polyData = vtkSmartPointer<vtkPolyData>::New(); // Add the geometry and topology to the polydata polyData->SetPoints ( points ); polyData->SetPolys ( triangles ); std::cout << "There are " << polyData->GetNumberOfCells() << " cells." << std::endl; polyData->GetPolys()->InsertNextCell(triangle); std::cout << "There are " << polyData->GetNumberOfCells() << " cells." << std::endl; return EXIT_SUCCESS; }
CMakeLists.txt¶
cmake_minimum_required(VERSION 2.8) PROJECT(AddCell) find_package(VTK REQUIRED) include(${VTK_USE_FILE}) add_executable(AddCell MACOSX_BUNDLE AddCell.cxx) target_link_libraries(AddCell ${VTK_LIBRARIES})
Download and Build AddCell¶
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 Some tarballs may be missing or out-of-date.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 AddCell and its CMakeLists.txt file. Once the tarball AddCell.tar has been downloaded and extracted,
cd AddCell/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:
./AddCell
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.