VTK/Examples/Cxx/Visualization/ColorActorEdges

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VTK Examples Baseline Visualization TestColorActorEdges.png

This example colors the edges of a actor.

ColorActorEdges.cxx

#include <vtkSmartPointer.h>
 
#include <vtkActor.h>
#include <vtkPolyData.h>
#include <vtkPolyDataMapper.h>
#include <vtkProperty.h>
#include <vtkRenderWindow.h>
#include <vtkRenderWindowInteractor.h>
#include <vtkRenderer.h>
#include <vtkSphereSource.h>
 
int main(int, char *[])
{
  // Create a sphere
  vtkSmartPointer<vtkSphereSource> sphereSource =
    vtkSmartPointer<vtkSphereSource>::New();
  sphereSource->SetCenter(0.0, 0.0, 0.0);
  sphereSource->SetRadius(5.0);
  sphereSource->Update();
 
  // Create a mapper and actor
  vtkSmartPointer<vtkPolyDataMapper> mapper =
    vtkSmartPointer<vtkPolyDataMapper>::New();
  mapper->SetInputConnection(sphereSource->GetOutputPort());
  vtkSmartPointer<vtkActor> actor =
    vtkSmartPointer<vtkActor>::New();
  actor->SetMapper(mapper);
 
  // Flat shading
  actor->GetProperty()->SetInterpolationToFlat();
 
  // Set the color for edges of the sphere
  actor->GetProperty()->SetEdgeColor(1.0, 0.0, 0.0); //(R,G,B)
  actor->GetProperty()->EdgeVisibilityOn();
 
  // Create a renderer, render window, and interactor
  vtkSmartPointer<vtkRenderer> renderer =
    vtkSmartPointer<vtkRenderer>::New();
  vtkSmartPointer<vtkRenderWindow> renderWindow =
    vtkSmartPointer<vtkRenderWindow>::New();
  renderWindow->AddRenderer(renderer);
  vtkSmartPointer<vtkRenderWindowInteractor> renderWindowInteractor =
    vtkSmartPointer<vtkRenderWindowInteractor>::New();
  renderWindowInteractor->SetRenderWindow(renderWindow);
 
  // Add the actor to the scene
  renderer->AddActor(actor);
 
  // Render and interact
  renderWindow->Render();
  renderWindowInteractor->Start();
 
  return EXIT_SUCCESS;
}

Please try the new VTKExamples website.

CMakeLists.txt

cmake_minimum_required(VERSION 2.8)
 
PROJECT(ColorActorEdges)
 
find_package(VTK REQUIRED)
include(${VTK_USE_FILE})
 
add_executable(ColorActorEdges MACOSX_BUNDLE ColorActorEdges.cxx)
 
if(VTK_LIBRARIES)
  target_link_libraries(ColorActorEdges ${VTK_LIBRARIES})
else()
  target_link_libraries(ColorActorEdges vtkHybrid vtkWidgets)
endif()

Download and Build ColorActorEdges

Click here to download ColorActorEdges. and its CMakeLists.txt file.

Once the tarball ColorActorEdges.tar has been downloaded and extracted,

cd ColorActorEdges/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:

./ColorActorEdges

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.