VertexGlyphFilter

Repository source: VertexGlyphFilter

Description¶

This example creates a set of points and adds a vertex at each point using vtkVertexGlyphFilter.

Other languages

See (Python), (Java)

Question

If you have a question about this example, please use the VTK Discourse Forum

Code¶

VertexGlyphFilter.cxx

#include <vtkActor.h>
#include <vtkNamedColors.h>
#include <vtkNew.h>
#include <vtkPolyData.h>
#include <vtkPolyDataMapper.h>
#include <vtkProperty.h>
#include <vtkRenderWindow.h>
#include <vtkRenderWindowInteractor.h>
#include <vtkRenderer.h>
#include <vtkVertexGlyphFilter.h>

int main(int, char*[])
{
  vtkNew<vtkNamedColors> namedColors;
  namedColors->SetColor("Bkg", 0.3, 0.6, 0.3);

  vtkNew<vtkPoints> points;
  points->InsertNextPoint(0, 0, 0);
  points->InsertNextPoint(1, 1, 1);
  points->InsertNextPoint(2, 2, 2);

  vtkNew<vtkPolyData> polydata;
  polydata->SetPoints(points);

  vtkNew<vtkVertexGlyphFilter> vertexGlyphFilter;
  vertexGlyphFilter->AddInputData(polydata);
  vertexGlyphFilter->Update();

  // Create a mapper and actor
  vtkNew<vtkPolyDataMapper> mapper;
  mapper->SetInputConnection(vertexGlyphFilter->GetOutputPort());

  vtkNew<vtkActor> actor;
  actor->SetMapper(mapper);
  actor->GetProperty()->SetPointSize(10);
  actor->GetProperty()->SetColor(namedColors->GetColor3d("Yellow").GetData());

  // Create a renderer, render window, and interactor
  vtkNew<vtkRenderer> renderer;
  vtkNew<vtkRenderWindow> renderWindow;
  renderWindow->AddRenderer(renderer);
  vtkNew<vtkRenderWindowInteractor> renderWindowInteractor;
  renderWindowInteractor->SetRenderWindow(renderWindow);

  // Add the actor to the scene
  renderer->AddActor(actor);
  renderer->SetBackground(namedColors->GetColor3d("Green").GetData());

  // Render and interact
  renderWindow->SetWindowName("VertexGlyphFilter");
  renderWindow->Render();
  renderWindowInteractor->Start();

  return EXIT_SUCCESS;
}

CMakeLists.txt¶

cmake_minimum_required(VERSION 3.12 FATAL_ERROR)

project(VertexGlyphFilter)

find_package(VTK COMPONENTS 
  CommonColor
  CommonCore
  CommonDataModel
  FiltersGeneral
  InteractionStyle
  RenderingContextOpenGL2
  RenderingCore
  RenderingFreeType
  RenderingGL2PSOpenGL2
  RenderingOpenGL2
)

if (NOT VTK_FOUND)
  message(FATAL_ERROR "VertexGlyphFilter: Unable to find the VTK build folder.")
endif()

# Prevent a "command line is too long" failure in Windows.
set(CMAKE_NINJA_FORCE_RESPONSE_FILE "ON" CACHE BOOL "Force Ninja to use response files.")
add_executable(VertexGlyphFilter MACOSX_BUNDLE VertexGlyphFilter.cxx )
  target_link_libraries(VertexGlyphFilter PRIVATE ${VTK_LIBRARIES}
)
# vtk_module_autoinit is needed
vtk_module_autoinit(
  TARGETS VertexGlyphFilter
  MODULES ${VTK_LIBRARIES}
)

Download and Build VertexGlyphFilter¶

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

cd VertexGlyphFilter/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:

./VertexGlyphFilter

WINDOWS USERS

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