VectorOfActors
VTKExamples/Cxx/Visualization/VectorOfActors
Description
This example creates multiple actors and stores them in a vector. The resulting image is 10 spheres in a line.
Code
VectorOfActors.cxx
#include <vtkPolyDataMapper.h>
#include <vtkActor.h>
#include <vtkRenderWindow.h>
#include <vtkRenderer.h>
#include <vtkRenderWindowInteractor.h>
#include <vtkPolyData.h>
#include <vtkSmartPointer.h>
#include <vtkSphereSource.h>
#include <vtkInteractorStyleTrackballCamera.h>
#include <vtkInteractorStyleTrackball.h>
#include <vector>
int main(int, char *[])
{
std::vector<vtkSmartPointer<vtkActor> > actors;
for(unsigned int i = 0; i < 10; i++)
{
vtkSmartPointer<vtkSphereSource> sphereSource =
vtkSmartPointer<vtkSphereSource>::New();
sphereSource->SetCenter(i, 0.0, 0.0);
sphereSource->SetRadius(.2);
vtkSmartPointer<vtkPolyDataMapper> mapper =
vtkSmartPointer<vtkPolyDataMapper>::New();
mapper->SetInputConnection(sphereSource->GetOutputPort());
vtkSmartPointer<vtkActor> actor =
vtkSmartPointer<vtkActor>::New();
actor->SetMapper(mapper);
actors.push_back(actor);
}
// A renderer and render window
vtkSmartPointer<vtkRenderer> renderer =
vtkSmartPointer<vtkRenderer>::New();
vtkSmartPointer<vtkRenderWindow> renderWindow =
vtkSmartPointer<vtkRenderWindow>::New();
renderWindow->AddRenderer(renderer);
// An interactor
vtkSmartPointer<vtkRenderWindowInteractor> renderWindowInteractor =
vtkSmartPointer<vtkRenderWindowInteractor>::New();
renderWindowInteractor->SetRenderWindow(renderWindow);
// Add the actors to the scene
for(unsigned int i = 0; i < actors.size(); i++)
{
renderer->AddActor(actors[i]);
}
renderer->SetBackground(1,1,1); // Background color white
// Render
renderWindow->Render();
vtkSmartPointer<vtkInteractorStyleTrackballCamera> style =
vtkSmartPointer<vtkInteractorStyleTrackballCamera>::New();
renderWindowInteractor->SetInteractorStyle( style );
// Begin mouse interaction
renderWindowInteractor->Start();
return EXIT_SUCCESS;
}
CMakeLists.txt
cmake_minimum_required(VERSION 2.8)
PROJECT(VectorOfActors)
find_package(VTK REQUIRED)
include(${VTK_USE_FILE})
add_executable(VectorOfActors MACOSX_BUNDLE VectorOfActors.cxx)
target_link_libraries(VectorOfActors ${VTK_LIBRARIES})
Download and Build VectorOfActors
Click here to download VectorOfActors and its CMakeLists.txt file. Once the tarball VectorOfActors.tar has been downloaded and extracted,
cd VectorOfActors/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:
./VectorOfActors
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.