XGMLReader
VTKExamples/Cxx/InfoVis/XGMLReader
Description
This example reads and displays the graph from a gml file. You can test this with VTKData/Data/Infovis/fsm.gml.
Code
XGMLReader.cxx
#include <vtkPolyData.h>
#include <vtkXGMLReader.h>
#include <vtkSmartPointer.h>
#include <vtkUndirectedGraph.h>
#include <vtkGraphLayoutStrategy.h>
#include <vtkGraphLayoutView.h>
#include <vtkRenderWindowInteractor.h>
#include <vtkSimple2DLayoutStrategy.h>
int main(int argc, char *argv[])
{
if(argc != 2)
{
std::cout << "Required parameters: Filename" << std::endl;
return EXIT_FAILURE;
}
std::string inputFilename = argv[1];
vtkSmartPointer<vtkXGMLReader> reader =
vtkSmartPointer<vtkXGMLReader>::New();
reader->SetFileName(inputFilename.c_str());
reader->Update();
vtkUndirectedGraph* g = reader->GetOutput();
vtkSmartPointer<vtkGraphLayoutView> graphLayoutView =
vtkSmartPointer<vtkGraphLayoutView>::New();
graphLayoutView->AddRepresentationFromInput(g);
graphLayoutView->SetLayoutStrategy("Simple 2D");
graphLayoutView->ResetCamera();
graphLayoutView->Render();
graphLayoutView->GetInteractor()->Start();
return EXIT_SUCCESS;
}
CMakeLists.txt
cmake_minimum_required(VERSION 2.8)
PROJECT(XGMLReader)
find_package(VTK REQUIRED)
include(${VTK_USE_FILE})
add_executable(XGMLReader MACOSX_BUNDLE XGMLReader.cxx)
target_link_libraries(XGMLReader ${VTK_LIBRARIES})
Download and Build XGMLReader
Click here to download XGMLReader and its CMakeLists.txt file. Once the tarball XGMLReader.tar has been downloaded and extracted,
cd XGMLReader/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:
./XGMLReader
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.