MutableGraphHelper
vtk-examples/Cxx/InfoVis/MutableGraphHelper
Question
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Code¶
MutableGraphHelper.cxx
#include <vtkGraphLayoutView.h>
#include <vtkMutableDirectedGraph.h>
#include <vtkMutableGraphHelper.h>
#include <vtkMutableUndirectedGraph.h>
#include <vtkNew.h>
#include <vtkRenderWindowInteractor.h>
int main(int, char*[])
{
vtkNew<vtkMutableUndirectedGraph> g;
vtkNew<vtkMutableGraphHelper> graphHelper;
graphHelper->SetGraph(g);
vtkIdType v0 = graphHelper->AddVertex();
vtkIdType v1 = graphHelper->AddVertex();
graphHelper->AddEdge(v0, v1);
// Can also do this:
graphHelper->RemoveEdge(0);
vtkNew<vtkGraphLayoutView> treeLayoutView;
treeLayoutView->AddRepresentationFromInput(graphHelper->GetGraph());
treeLayoutView->SetLayoutStrategyToTree();
treeLayoutView->ResetCamera();
treeLayoutView->Render();
treeLayoutView->GetInteractor()->Start();
return EXIT_SUCCESS;
}
CMakeLists.txt¶
cmake_minimum_required(VERSION 3.12 FATAL_ERROR)
project(MutableGraphHelper)
find_package(VTK COMPONENTS
vtkCommonCore
vtkCommonDataModel
vtkInfovisCore
vtkInteractionStyle
vtkRenderingContextOpenGL2
vtkRenderingCore
vtkRenderingFreeType
vtkRenderingGL2PSOpenGL2
vtkRenderingOpenGL2
vtkViewsInfovis
QUIET
)
if (NOT VTK_FOUND)
message("Skipping MutableGraphHelper: ${VTK_NOT_FOUND_MESSAGE}")
return()
endif()
message (STATUS "VTK_VERSION: ${VTK_VERSION}")
if (VTK_VERSION VERSION_LESS "8.90.0")
# old system
include(${VTK_USE_FILE})
add_executable(MutableGraphHelper MACOSX_BUNDLE MutableGraphHelper.cxx )
target_link_libraries(MutableGraphHelper PRIVATE ${VTK_LIBRARIES})
else()
# Prevent a "command line is too long" failure in Windows.
set(CMAKE_NINJA_FORCE_RESPONSE_FILE "ON" CACHE BOOL "Force Ninja to use response files.")
add_executable(MutableGraphHelper MACOSX_BUNDLE MutableGraphHelper.cxx )
target_link_libraries(MutableGraphHelper PRIVATE ${VTK_LIBRARIES})
# vtk_module_autoinit is needed
vtk_module_autoinit(
TARGETS MutableGraphHelper
MODULES ${VTK_LIBRARIES}
)
endif()
Download and Build MutableGraphHelper¶
Click here to download MutableGraphHelper and its CMakeLists.txt file. Once the tarball MutableGraphHelper.tar has been downloaded and extracted,
cd MutableGraphHelper/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:
./MutableGraphHelper
WINDOWS USERS
Be sure to add the VTK bin directory to your path. This will resolve the VTK dll's at run time.