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
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.