TexturedSphere
VTKExamples/Cxx/Texture/TexturedSphere
Code
TexturedSphere.cxx
#include <vtkSmartPointer.h>
#include <vtkRenderWindowInteractor.h>
#include <vtkRenderWindow.h>
#include <vtkRenderer.h>
#include <vtkActor.h>
#include <vtkPolyDataMapper.h>
#include <vtkTransformTextureCoords.h>
#include <vtkTexture.h>
#include <vtkTextureMapToSphere.h>
#include <vtkImageReader2Factory.h>
#include <vtkImageReader.h>
#include <vtkTexturedSphereSource.h>
int main (int argc, char *argv[])
{
if (argc < 2)
{
std::cout << "Usage: " << argv[0]
<< " texture(.png)"
<< " [translate]" <<std::endl;
return EXIT_FAILURE;
}
double translate[3];
if (argc > 2)
{
translate[0] = atof(argv[2]);
}
else
{
translate[0] = 0.0;
}
translate[1] = 0.0;
translate[2] = 0.0;
std::cout << translate[0] << ", "
<< translate[1] << ", "
<< translate[2] << "\n";
// Create a sphere with texture coordinates
vtkSmartPointer<vtkTexturedSphereSource> source =
vtkSmartPointer<vtkTexturedSphereSource>::New();
// Read texture file
vtkSmartPointer<vtkImageReader2Factory> readerFactory =
vtkSmartPointer<vtkImageReader2Factory>::New();
vtkImageReader2 *imageReader =
readerFactory->CreateImageReader2(argv[1]);
imageReader->SetFileName(argv[1]);
// Create texture
vtkSmartPointer<vtkTexture> texture =
vtkSmartPointer<vtkTexture>::New();
texture->SetInputConnection(imageReader->GetOutputPort());
vtkSmartPointer<vtkTransformTextureCoords> transformTexture =
vtkSmartPointer<vtkTransformTextureCoords>::New();
transformTexture->SetInputConnection(source->GetOutputPort());
transformTexture->SetPosition(translate);
vtkSmartPointer<vtkPolyDataMapper> mapper =
vtkSmartPointer<vtkPolyDataMapper>::New();
mapper->SetInputConnection(transformTexture->GetOutputPort());
vtkSmartPointer<vtkActor> actor =
vtkSmartPointer<vtkActor>::New();
actor->SetMapper( mapper );
actor->SetTexture( texture );
vtkSmartPointer<vtkRenderer> renderer =
vtkSmartPointer<vtkRenderer>::New();
renderer->AddActor(actor);
renderer->SetBackground(.1, .2, .3);
vtkSmartPointer<vtkRenderWindow> renderWindow =
vtkSmartPointer<vtkRenderWindow>::New();
renderWindow->AddRenderer( renderer );
vtkSmartPointer<vtkRenderWindowInteractor> renWinInteractor =
vtkSmartPointer<vtkRenderWindowInteractor>::New();
renWinInteractor->SetRenderWindow( renderWindow );
renderWindow->Render();
renWinInteractor->Start();
imageReader->Delete();
return EXIT_SUCCESS;
}
CMakeLists.txt
cmake_minimum_required(VERSION 2.8)
PROJECT(TexturedSphere)
find_package(VTK REQUIRED)
include(${VTK_USE_FILE})
add_executable(TexturedSphere MACOSX_BUNDLE TexturedSphere.cxx)
target_link_libraries(TexturedSphere ${VTK_LIBRARIES})
Download and Build TexturedSphere
Click here to download TexturedSphere and its CMakeLists.txt file. Once the tarball TexturedSphere.tar has been downloaded and extracted,
cd TexturedSphere/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:
./TexturedSphere
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.