BackgroundGradient
VTKExamples/Cxx/Visualization/BackgroundGradient
Code¶
BackgroundGradient.cxx
#include <vtkSmartPointer.h> #include <vtkPolyData.h> #include <vtkPolyDataMapper.h> #include <vtkSphereSource.h> #include <vtkActor.h> #include <vtkRenderWindow.h> #include <vtkRenderer.h> #include <vtkRenderWindowInteractor.h> int main(int, char *[]) { // Create a sphere vtkSmartPointer<vtkSphereSource> sphereSource = vtkSmartPointer<vtkSphereSource>::New(); 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); // 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); // Setup the background gradient renderer->GradientBackgroundOn(); renderer->SetBackground(1,1,1); renderer->SetBackground2(0,0,1); // Render and interact renderWindow->Render(); renderWindowInteractor->Start(); return EXIT_SUCCESS; }
CMakeLists.txt¶
cmake_minimum_required(VERSION 2.8) PROJECT(BackgroundGradient) find_package(VTK REQUIRED) include(${VTK_USE_FILE}) add_executable(BackgroundGradient MACOSX_BUNDLE BackgroundGradient.cxx) target_link_libraries(BackgroundGradient ${VTK_LIBRARIES})
Download and Build BackgroundGradient¶
Danger
The generation of tar files has not been ported to the new VTKExamples. Some tarballs may be missing or out-of-date.
Click here to download BackgroundGradient and its CMakeLists.txt file. Once the tarball BackgroundGradient.tar has been downloaded and extracted,
cd BackgroundGradient/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:
./BackgroundGradient
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.