VertexSize
VTKExamples/Cxx/Graphs/VertexSize
Description¶
Change the size of all vertices.
Code¶
VertexSize.cxx
#include <vtkSmartPointer.h> #include <vtkRenderedGraphRepresentation.h> #include <vtkObjectFactory.h> #include <vtkFloatArray.h> #include <vtkMutableUndirectedGraph.h> #include <vtkGraphWriter.h> #include <vtkGraphLayoutView.h> #include <vtkRenderWindowInteractor.h> #include <vtkDataSetAttributes.h> #include <vtkGraphToGlyphs.h> class CustomRepresentation : public vtkRenderedGraphRepresentation { public: static CustomRepresentation* New(); vtkTypeMacro(CustomRepresentation, vtkRenderedGraphRepresentation); void SetVertexSize(int vertexSize) { this->VertexGlyph->SetScreenSize(vertexSize); this->VertexGlyph->Modified(); } }; vtkStandardNewMacro(CustomRepresentation); int main(int, char *[]) { vtkSmartPointer<vtkMutableUndirectedGraph> g = vtkSmartPointer<vtkMutableUndirectedGraph>::New(); vtkIdType v1 = g->AddVertex(); vtkIdType v2 = g->AddVertex(); g->AddEdge(v1, v2); g->AddEdge(v1, v2); // Specify coordinates so the graph is always the same for testing vtkSmartPointer<vtkPoints> points = vtkSmartPointer<vtkPoints>::New(); points->InsertNextPoint(0,0,0); points->InsertNextPoint(1,0,0); g->SetPoints(points); vtkSmartPointer<CustomRepresentation> representation = vtkSmartPointer<CustomRepresentation>::New(); representation->SetInputConnection(g->GetProducerPort()); representation->SetVertexSize(100); representation->SetGlyphType(vtkGraphToGlyphs::CIRCLE); vtkSmartPointer<vtkGraphLayoutView> layoutView = vtkSmartPointer<vtkGraphLayoutView>::New(); layoutView->AddRepresentation(representation); layoutView->SetLayoutStrategy("Pass Through"); layoutView->ResetCamera(); layoutView->GetInteractor()->Start(); return EXIT_SUCCESS; }
CMakeLists.txt¶
cmake_minimum_required(VERSION 2.8) PROJECT(VertexSize) find_package(VTK REQUIRED) include(${VTK_USE_FILE}) add_executable(VertexSize MACOSX_BUNDLE VertexSize.cxx) target_link_libraries(VertexSize ${VTK_LIBRARIES})
Download and Build VertexSize¶
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 Some tarballs may be missing or out-of-date.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 VertexSize and its CMakeLists.txt file. Once the tarball VertexSize.tar has been downloaded and extracted,
cd VertexSize/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:
./VertexSize
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.