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
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.