TexturePlane
VTKExamples/Cxx/Texture/TexturePlane
Description¶
Simple example of texture mapping.
Info
See Figure 7-33 in Chapter 7 in the VTK Textbook.
Other Languages
See (Python)
Code¶
TexturePlane.cxx
#include <vtkActor.h> #include <vtkCamera.h> #include <vtkImageReader2.h> #include <vtkImageReader2Factory.h> #include <vtkNamedColors.h> #include <vtkPlaneSource.h> #include <vtkPolyDataMapper.h> #include <vtkRenderWindow.h> #include <vtkRenderWindowInteractor.h> #include <vtkRenderer.h> #include <vtkTexture.h> // // This simple example shows how to do basic texture mapping. // // // Load in the texture map. A texture is any unsigned char image. If it // is not of this type, you will have to map it through a lookup table // or by using vtkImageShiftScale. // int main (int argc, char *argv[]) { // Verify input arguments if ( argc != 2 ) { std::cout << "Usage: " << argv[0] << " Filename" << std::endl; return EXIT_FAILURE; } vtkSmartPointer<vtkImageReader2Factory> readerFactory = vtkSmartPointer<vtkImageReader2Factory>::New(); vtkSmartPointer<vtkImageReader2> textureFile = readerFactory->CreateImageReader2(argv[1]); textureFile->SetFileName(argv[1]); textureFile->Update(); vtkSmartPointer<vtkTexture> atext = vtkSmartPointer<vtkTexture>::New(); atext->SetInputConnection(textureFile->GetOutputPort()); atext->InterpolateOn(); // Create a plane source and actor. The vtkPlanesSource generates // texture coordinates. // vtkSmartPointer<vtkPlaneSource> plane = vtkSmartPointer<vtkPlaneSource>::New(); vtkSmartPointer<vtkPolyDataMapper> planeMapper = vtkSmartPointer<vtkPolyDataMapper>::New(); planeMapper->SetInputConnection(plane->GetOutputPort()); vtkSmartPointer<vtkActor> planeActor = vtkSmartPointer<vtkActor>::New(); planeActor->SetMapper(planeMapper); planeActor->SetTexture(atext); // Create the RenderWindow, Renderer and both Actors vtkSmartPointer<vtkNamedColors> colors = vtkSmartPointer<vtkNamedColors>::New(); vtkSmartPointer<vtkRenderer> renderer = vtkSmartPointer<vtkRenderer>::New(); vtkSmartPointer<vtkRenderWindow> renWin = vtkSmartPointer<vtkRenderWindow>::New(); renWin->AddRenderer(renderer); vtkSmartPointer<vtkRenderWindowInteractor> iren = vtkSmartPointer<vtkRenderWindowInteractor>::New(); iren->SetRenderWindow(renWin); // Add the actors to the renderer, set the background and size renderer->AddActor(planeActor); renderer->SetBackground(colors->GetColor3d("SlateGray").GetData()); renWin->SetSize(640, 480); // render the image renWin->Render(); renderer->ResetCamera(); renderer->GetActiveCamera()->Elevation(-30); renderer->GetActiveCamera()->Roll(-20); renderer->ResetCameraClippingRange(); renWin->Render(); iren->Start(); return EXIT_SUCCESS; }
CMakeLists.txt¶
cmake_minimum_required(VERSION 2.8) PROJECT(TexturePlane) find_package(VTK REQUIRED) include(${VTK_USE_FILE}) add_executable(TexturePlane MACOSX_BUNDLE TexturePlane.cxx ) target_link_libraries(TexturePlane ${VTK_LIBRARIES})
Download and Build TexturePlane¶
Click here to download TexturePlane and its CMakeLists.txt file. Once the tarball TexturePlane.tar has been downloaded and extracted,
cd TexturePlane/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:
./TexturePlane
WINDOWS USERS
Be sure to add the VTK bin directory to your path. This will resolve the VTK dll's at run time.