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
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.