CellEdges
VTKExamples/Cxx/Meshes/CellEdges
Code¶
CellEdges.cxx
#include <vtkSmartPointer.h> #include <vtkTriangle.h> #include <vtkCellArray.h> #include <vtkPolyData.h> #include <vtkIdList.h> int main(int, char *[]) { vtkSmartPointer<vtkTriangle> triangle = vtkSmartPointer<vtkTriangle>::New(); triangle->GetPoints()->SetPoint(0, 1.0, 0.0, 0.0); triangle->GetPoints()->SetPoint(1, 0.0, 0.0, 0.0); triangle->GetPoints()->SetPoint(2, 0.0, 1.0, 0.0); triangle->GetPointIds()->SetId ( 0, 0 ); triangle->GetPointIds()->SetId ( 1, 1 ); triangle->GetPointIds()->SetId ( 2, 2 ); std::cout << "The cell has " << triangle->GetNumberOfEdges() << " edges." << std::endl; for(vtkIdType i = 0; i < triangle->GetNumberOfEdges(); i++) { vtkCell* edge = triangle->GetEdge(i); vtkIdList* pointIdList = edge->GetPointIds(); std::cout << "Edge " << i << " has " << pointIdList->GetNumberOfIds() << " points." << std::endl; for(vtkIdType p = 0; p < pointIdList->GetNumberOfIds(); p++) { std::cout << "Edge " << i << " uses point " << pointIdList->GetId(p) << std::endl; } } return EXIT_SUCCESS; }
CMakeLists.txt¶
cmake_minimum_required(VERSION 2.8) PROJECT(CellEdges) find_package(VTK REQUIRED) include(${VTK_USE_FILE}) add_executable(CellEdges MACOSX_BUNDLE CellEdges.cxx) target_link_libraries(CellEdges ${VTK_LIBRARIES})
Download and Build CellEdges¶
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 Some tarballs may be missing or out-of-date.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 CellEdges and its CMakeLists.txt file. Once the tarball CellEdges.tar has been downloaded and extracted,
cd CellEdges/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:
./CellEdges
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.