Model
VTKExamples/Cxx/Rendering/Model
Description¶
Info
See Figure 3-24 in Chapter 3 the VTK Textbook.
Other Languages
See (Python)
Question
If you have a simple question about this example contact us at VTKExamplesProject If your question is more complex and may require extended discussion, please use the VTK Discourse Forum
Code¶
Model.cxx
#include <vtkActor.h> #include <vtkConeSource.h> #include <vtkCubeSource.h> #include <vtkNamedColors.h> #include <vtkPolyDataMapper.h> #include <vtkProperty.h> #include <vtkRenderWindow.h> #include <vtkRenderWindowInteractor.h> #include <vtkRenderer.h> #include <vtkSmartPointer.h> #include <vtkSphereSource.h> #include <array> int main(int, char* []) { vtkSmartPointer<vtkNamedColors> colors = vtkSmartPointer<vtkNamedColors>::New(); // Set the background color. std::array<unsigned char , 4> cubeColor{{230, 230, 230, 255}}; colors->SetColor("CubeColor", cubeColor.data()); std::array<unsigned char , 4> bkg{{230, 230, 230, 255}}; colors->SetColor("BkgColor", bkg.data()); // create rendering windows and three renderers vtkSmartPointer<vtkRenderer> ren1 = vtkSmartPointer<vtkRenderer>::New(); vtkSmartPointer<vtkRenderer> ren2 = vtkSmartPointer<vtkRenderer>::New(); vtkSmartPointer<vtkRenderWindow> renWindow1 = vtkSmartPointer<vtkRenderWindow>::New(); renWindow1->AddRenderer(ren1); renWindow1->AddRenderer(ren2); vtkSmartPointer<vtkRenderWindowInteractor> iren1 = vtkSmartPointer<vtkRenderWindowInteractor>::New(); iren1->SetRenderWindow(renWindow1); vtkSmartPointer<vtkRenderer> ren3 = vtkSmartPointer<vtkRenderer>::New(); vtkSmartPointer<vtkRenderWindow> renWindow2 = vtkSmartPointer<vtkRenderWindow>::New(); renWindow2->AddRenderer(ren3); vtkSmartPointer<vtkRenderWindowInteractor> iren2 = vtkSmartPointer<vtkRenderWindowInteractor>::New(); iren2->SetRenderWindow(renWindow2); // create an actor and give it cone geometry vtkSmartPointer<vtkConeSource> cone = vtkSmartPointer<vtkConeSource>::New(); cone->SetResolution(8); vtkSmartPointer<vtkPolyDataMapper> coneMapper = vtkSmartPointer<vtkPolyDataMapper>::New(); coneMapper->SetInputConnection(cone->GetOutputPort()); vtkSmartPointer<vtkActor> coneActor = vtkSmartPointer<vtkActor>::New(); coneActor->SetMapper(coneMapper); coneActor->GetProperty()->SetColor(colors->GetColor3d("Peacock").GetData()); // create an actor and give it cube geometry vtkSmartPointer<vtkCubeSource> cube = vtkSmartPointer<vtkCubeSource>::New(); vtkSmartPointer<vtkPolyDataMapper> cubeMapper = vtkSmartPointer<vtkPolyDataMapper>::New(); cubeMapper->SetInputConnection(cube->GetOutputPort()); vtkSmartPointer<vtkActor> cubeActor = vtkSmartPointer<vtkActor>::New(); cubeActor->SetMapper(cubeMapper); cubeActor->GetProperty()->SetColor(colors->GetColor3d("CubeColor").GetData()); // create an actor and give it sphere geometry vtkSmartPointer<vtkSphereSource> sphere = vtkSmartPointer<vtkSphereSource>::New(); sphere->SetThetaResolution(16); sphere->SetPhiResolution(16); vtkSmartPointer<vtkPolyDataMapper> sphereMapper = vtkSmartPointer<vtkPolyDataMapper>::New(); sphereMapper->SetInputConnection(sphere->GetOutputPort()); vtkSmartPointer<vtkActor> sphereActor = vtkSmartPointer<vtkActor>::New(); sphereActor->SetMapper(sphereMapper); sphereActor->GetProperty()->SetColor(colors->GetColor3d("Melon").GetData()); // assign our actor to both renderers ren1->AddActor(coneActor); ren2->AddActor(sphereActor); ren3->AddActor(cubeActor); // set the size of our window renWindow1->SetSize(300, 150); renWindow1->SetPosition(0, 50); renWindow2->SetSize(300, 300); renWindow2->SetPosition(0, 300); // set the viewports and background of the renderers ren1->SetViewport(0, 0, 0.5, 1); ren1->SetBackground(colors->GetColor3d("BkgColor").GetData()); ren2->SetViewport(0.5, 0, 1, 1); ren2->SetBackground(colors->GetColor3d("White").GetData()); ren3->SetBackground(colors->GetColor3d("White").GetData()); // draw the resulting scene renWindow1->Render(); renWindow2->Render(); iren1->Start(); return EXIT_SUCCESS; }
CMakeLists.txt¶
cmake_minimum_required(VERSION 3.3 FATAL_ERROR) project(Model) find_package(VTK COMPONENTS vtkCommonColor vtkCommonCore vtkFiltersSources vtkInteractionStyle vtkRenderingCore vtkRenderingFreeType vtkRenderingOpenGL2 QUIET) if (NOT VTK_FOUND) message("Skipping Model: ${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(Model MACOSX_BUNDLE Model.cxx ) target_link_libraries(Model PRIVATE ${VTK_LIBRARIES}) else () # include all components add_executable(Model MACOSX_BUNDLE Model.cxx ) target_link_libraries(Model PRIVATE ${VTK_LIBRARIES}) # vtk_module_autoinit is needed vtk_module_autoinit( TARGETS Model MODULES ${VTK_LIBRARIES} ) endif ()
Download and Build Model¶
Click here to download Model and its CMakeLists.txt file. Once the tarball Model.tar has been downloaded and extracted,
cd Model/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:
./Model
WINDOWS USERS
Be sure to add the VTK bin directory to your path. This will resolve the VTK dll's at run time.