Glyph3D

VTKEx/Cxx/Filtering/Glyph3D

Description¶

This example applies an object at every point. We use a cube for the demo.

Other languages

Question

If you have a simple question about this example contact us at VTKExProject If your question is more complex and may require extended discussion, please use the VTK Discourse Forum

Code¶

Glyph3D.cxx

#include <vtkSmartPointer.h>
#include <vtkCubeSource.h>
#include <vtkPolyData.h>
#include <vtkPoints.h>
#include <vtkGlyph3D.h>
#include <vtkCellArray.h>
#include <vtkPolyDataMapper.h>
#include <vtkActor.h>
#include <vtkRenderWindow.h>
#include <vtkRenderer.h>
#include <vtkRenderWindowInteractor.h>

int main(int, char *[])
{
  vtkSmartPointer<vtkPoints> points = 
    vtkSmartPointer<vtkPoints>::New();
  points->InsertNextPoint(0,0,0);
  points->InsertNextPoint(1,1,1);
  points->InsertNextPoint(2,2,2);
  vtkSmartPointer<vtkPolyData> polydata = 
    vtkSmartPointer<vtkPolyData>::New();
  polydata->SetPoints(points);

  // Create anything you want here, we will use a cube for the demo.
  vtkSmartPointer<vtkCubeSource> cubeSource = 
      vtkSmartPointer<vtkCubeSource>::New();

  vtkSmartPointer<vtkGlyph3D> glyph3D = 
    vtkSmartPointer<vtkGlyph3D>::New();
  glyph3D->SetSourceConnection(cubeSource->GetOutputPort());
  glyph3D->SetInputData(polydata);
  glyph3D->Update();

  // Visualize
  vtkSmartPointer<vtkPolyDataMapper> mapper = 
    vtkSmartPointer<vtkPolyDataMapper>::New();
  mapper->SetInputConnection(glyph3D->GetOutputPort());

  vtkSmartPointer<vtkActor> actor = 
    vtkSmartPointer<vtkActor>::New();
  actor->SetMapper(mapper);

  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);
  renderer->SetBackground(.3, .6, .3); // Background color green

  renderWindow->Render();
  renderWindowInteractor->Start();

  return EXIT_SUCCESS;
}

CMakeLists.txt¶

cmake_minimum_required(VERSION 3.3 FATAL_ERROR)

project(Glyph3D)

find_package(VTK COMPONENTS 
  vtkvtkCommonCore
  vtkvtkCommonDataModel
  vtkvtkFiltersCore
  vtkvtkFiltersSources
  vtkvtkInteractionStyle
  vtkvtkRenderingContextOpenGL2
  vtkvtkRenderingCore
  vtkvtkRenderingFreeType
  vtkvtkRenderingGL2PSOpenGL2
  vtkvtkRenderingOpenGL2 QUIET)
if (NOT VTK_FOUND)
  message("Skipping Glyph3D: ${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(Glyph3D MACOSX_BUNDLE Glyph3D.cxx )
  target_link_libraries(Glyph3D PRIVATE ${VTK_LIBRARIES})
else ()
  # include all components
  add_executable(Glyph3D MACOSX_BUNDLE Glyph3D.cxx )
  target_link_libraries(Glyph3D PRIVATE ${VTK_LIBRARIES})
  # vtk_module_autoinit is needed
  vtk_module_autoinit(
    TARGETS Glyph3D
    MODULES ${VTK_LIBRARIES}
    )
endif ()

Download and Build Glyph3D¶

Click here to download Glyph3D and its CMakeLists.txt file. Once the tarball Glyph3D.tar has been downloaded and extracted,

cd Glyph3D/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:

./Glyph3D

WINDOWS USERS

Be sure to add the VTK bin directory to your path. This will resolve the VTK dll's at run time.