TreeMapView
VTKExamples/Cxx/InfoVis/TreeMapView
Description¶
Fix: use a much simpler tree and generate the tree in the code instead of reading files.
Code¶
TreeMapView.cxx
#include <vtkDataRepresentation.h> #include <vtkRenderWindow.h> #include <vtkRegressionTestImage.h> #include <vtkRenderer.h> #include <vtkRenderWindowInteractor.h> #include <vtkTestUtilities.h> #include <vtkTreeMapView.h> #include <vtkViewTheme.h> #include <vtkXMLTreeReader.h> #include <vtkSmartPointer.h> #include <vtkTesting.h> int main(int argc, char* argv[]) { vtkSmartPointer<vtkTesting> testHelper = vtkSmartPointer<vtkTesting>::New(); testHelper->AddArguments(argc,const_cast<const char **>(argv)); std::string dataRoot = testHelper->GetDataRoot(); std::string treeFileName = dataRoot + "/Data/Infovis/XML/vtkclasses.xml"; std::string graphFileName = dataRoot + "/Data/Infovis/XML/vtklibrary.xml"; if (argc > 2) { treeFileName = argv[1]; // vtkclasses.xml graphFileName = argv[2]; // vtklibrary.xml } // We need to put the graph and tree edges in different domains. vtkSmartPointer<vtkXMLTreeReader> reader1 = vtkSmartPointer<vtkXMLTreeReader>::New(); reader1->SetFileName(treeFileName.c_str()); reader1->SetEdgePedigreeIdArrayName("tree edge"); reader1->GenerateVertexPedigreeIdsOff(); reader1->SetVertexPedigreeIdArrayName("id"); vtkSmartPointer<vtkXMLTreeReader> reader2 = vtkSmartPointer<vtkXMLTreeReader>::New(); reader2->SetFileName(graphFileName.c_str()); reader2->SetEdgePedigreeIdArrayName("graph edge"); reader2->GenerateVertexPedigreeIdsOff(); reader2->SetVertexPedigreeIdArrayName("id"); reader1->Update(); reader2->Update(); vtkSmartPointer<vtkTreeMapView> view = vtkSmartPointer<vtkTreeMapView>::New(); view->DisplayHoverTextOff(); view->SetTreeFromInputConnection(reader2->GetOutputPort()); view->SetGraphFromInputConnection(reader1->GetOutputPort()); view->SetAreaColorArrayName("level"); view->SetEdgeColorToSplineFraction(); view->SetColorEdges(true); view->SetAreaLabelArrayName("id"); view->SetAreaHoverArrayName("id"); view->SetAreaLabelVisibility(true); view->SetAreaSizeArrayName("VertexDegree"); // Apply a theme to the views vtkViewTheme* const theme = vtkViewTheme::CreateMellowTheme(); view->ApplyViewTheme(theme); theme->Delete(); view->GetRenderWindow()->SetMultiSamples(0); view->GetRenderWindow()->SetAlphaBitPlanes(1); view->Update(); view->ResetCamera(); view->GetInteractor()->Initialize(); view->GetInteractor()->Start(); return EXIT_SUCCESS; }
CMakeLists.txt¶
cmake_minimum_required(VERSION 2.8) PROJECT(TreeMapView) find_package(VTK REQUIRED) include(${VTK_USE_FILE}) add_executable(TreeMapView MACOSX_BUNDLE TreeMapView.cxx) target_link_libraries(TreeMapView ${VTK_LIBRARIES})
Download and Build TreeMapView¶
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 TreeMapView and its CMakeLists.txt file. Once the tarball TreeMapView.tar has been downloaded and extracted,
cd TreeMapView/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:
./TreeMapView
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.