Glyph2D
VTKExamples/Cxx/Filtering/Glyph2D
Description¶
Copy a polydata to every point in the input set. We use a hexagon for the demo.
Code¶
Glyph2D.cxx
#include <vtkSmartPointer.h> #include <vtkRegularPolygonSource.h> #include <vtkPolyData.h> #include <vtkPoints.h> #include <vtkGlyph2D.h> #include <vtkCellArray.h> #include <vtkActor.h> #include <vtkRenderWindow.h> #include <vtkRenderer.h> #include <vtkPolyDataMapper.h> #include <vtkRenderWindowInteractor.h> #include <vtkInteractorStyleImage.h> int main(int, char *[]) { vtkSmartPointer<vtkPoints> points = vtkSmartPointer<vtkPoints>::New(); points->InsertNextPoint(0,0,0); points->InsertNextPoint(1,1,0); points->InsertNextPoint(2,2,0); vtkSmartPointer<vtkPolyData> polydata = vtkSmartPointer<vtkPolyData>::New(); polydata->SetPoints(points); // Create anything you want here, we will use a polygon for the demo. vtkSmartPointer<vtkRegularPolygonSource> polygonSource = vtkSmartPointer<vtkRegularPolygonSource>::New(); //default is 6 sides vtkSmartPointer<vtkGlyph2D> glyph2D = vtkSmartPointer<vtkGlyph2D>::New(); glyph2D->SetSourceConnection(polygonSource->GetOutputPort()); glyph2D->SetInputData(polydata); glyph2D->Update(); vtkSmartPointer<vtkPolyDataMapper> mapper = vtkSmartPointer<vtkPolyDataMapper>::New(); mapper->SetInputConnection(glyph2D->GetOutputPort()); mapper->Update(); vtkSmartPointer<vtkActor> actor = vtkSmartPointer<vtkActor>::New(); actor->SetMapper(mapper); // Visualize vtkSmartPointer<vtkRenderer> renderer = vtkSmartPointer<vtkRenderer>::New(); vtkSmartPointer<vtkRenderWindow> renderWindow = vtkSmartPointer<vtkRenderWindow>::New(); renderWindow->AddRenderer(renderer); vtkSmartPointer<vtkRenderWindowInteractor> renderWindowInteractor = vtkSmartPointer<vtkRenderWindowInteractor>::New(); renderWindowInteractor->SetRenderWindow(renderWindow); renderer->AddActor(actor); vtkSmartPointer<vtkInteractorStyleImage> style = vtkSmartPointer<vtkInteractorStyleImage>::New(); renderWindowInteractor->SetInteractorStyle( style ); renderWindow->Render(); renderWindowInteractor->Start(); return EXIT_SUCCESS; }
CMakeLists.txt¶
cmake_minimum_required(VERSION 3.3 FATAL_ERROR) project(Glyph2D) find_package(VTK COMPONENTS vtkCommonCore vtkCommonDataModel vtkFiltersCore vtkFiltersSources vtkInteractionStyle vtkRenderingCore vtkRenderingFreeType vtkRenderingOpenGL2 QUIET) if (NOT VTK_FOUND) message("Skipping Glyph2D: ${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(Glyph2D MACOSX_BUNDLE Glyph2D.cxx ) target_link_libraries(Glyph2D PRIVATE ${VTK_LIBRARIES}) else () # include all components add_executable(Glyph2D MACOSX_BUNDLE Glyph2D.cxx ) target_link_libraries(Glyph2D PRIVATE ${VTK_LIBRARIES}) # vtk_module_autoinit is needed vtk_module_autoinit( TARGETS Glyph2D MODULES ${VTK_LIBRARIES} ) endif ()
Download and Build Glyph2D¶
Click here to download Glyph2D and its CMakeLists.txt file. Once the tarball Glyph2D.tar has been downloaded and extracted,
cd Glyph2D/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:
./Glyph2D
WINDOWS USERS
Be sure to add the VTK bin directory to your path. This will resolve the VTK dll's at run time.