VTK/Examples/Cxx/Broken/Graphs/Conversions/MutableUndirectedGraphToMutableDirectedGraph
From KitwarePublic
Jump to navigationJump to searchThis conversion should be possible and simply use a default directedness for the new edges.
Contents
MutableUndirectedGraphToMutableDirectedGraph.cxx
#include <vtkSmartPointer.h>
#include <vtkPoints.h>
#include <vtkMutableDirectedGraph.h>
#include <vtkMutableUndirectedGraph.h>
int main (int, char *[])
{
//create a graph
vtkSmartPointer<vtkMutableUndirectedGraph> mug =
vtkSmartPointer<vtkMutableUndirectedGraph>::New();
//add 4 vertices to the graph
vtkIdType v1 = mug->AddVertex();
vtkIdType v2 = mug->AddVertex();
vtkIdType v3 = mug->AddVertex();
vtkIdType v4 = mug->AddVertex();
//add 3 edges to the graph
mug->AddEdge ( v1, v2 );
mug->AddEdge ( v1, v3 );
mug->AddEdge ( v1, v4 );
//create 4 points - one for each vertex
vtkSmartPointer<vtkPoints> points =
vtkSmartPointer<vtkPoints>::New();
points->InsertNextPoint(0.0, 0.0, 0.0);
points->InsertNextPoint(1.0, 0.0, 0.0);
points->InsertNextPoint(0.0, 1.0, 0.0);
points->InsertNextPoint(0.0, 0.0, 2.0);
//add the coordinates of the points to the graph
mug->SetPoints(points);
std::cout << "MUG: " << std::endl;
std::cout << "Type: " << mug->GetClassName() << std::endl;
std::cout << "Vertices: " << mug->GetNumberOfVertices() << std::endl;
std::cout << "Edges: " << mug->GetNumberOfEdges() << std::endl;
vtkSmartPointer<vtkMutableDirectedGraph> mdg =
vtkSmartPointer<vtkMutableDirectedGraph>::New();
if(!mdg->CheckedShallowCopy(mug))
{
std::cerr << "Could not convert!" << std::endl;
return EXIT_FAILURE;
}
std::cout << "MDG: " << std::endl;
std::cout << "Type: " << mdg->GetClassName() << std::endl;
std::cout << "Vertices: " << mdg->GetNumberOfVertices() << std::endl;
std::cout << "Edges: " << mdg->GetNumberOfEdges() << std::endl;
return EXIT_SUCCESS;
}
Please try the new VTKExamples website.
CMakeLists.txt
cmake_minimum_required(VERSION 2.8)
PROJECT(MutableUndirectedGraphToMutableDirectedGraph)
find_package(VTK REQUIRED)
include(${VTK_USE_FILE})
add_executable(MutableUndirectedGraphToMutableDirectedGraph MACOSX_BUNDLE MutableUndirectedGraphToMutableDirectedGraph.cxx)
if(VTK_LIBRARIES)
target_link_libraries(MutableUndirectedGraphToMutableDirectedGraph ${VTK_LIBRARIES})
else()
target_link_libraries(MutableUndirectedGraphToMutableDirectedGraph vtkHybrid vtkWidgets)
endif()
Download and Build MutableUndirectedGraphToMutableDirectedGraph
Click here to download MutableUndirectedGraphToMutableDirectedGraph. and its CMakeLists.txt file.
Once the tarball MutableUndirectedGraphToMutableDirectedGraph.tar has been downloaded and extracted,
cd MutableUndirectedGraphToMutableDirectedGraph/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:
./MutableUndirectedGraphToMutableDirectedGraph
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.