VTK/Examples/Cxx/Images/ImageGridSource

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VTK Examples Baseline Images TestImageGridSource.png

ImageGridSource.cxx

#include <vtkSmartPointer.h>
#include <vtkImageGridSource.h>
#include <vtkImageMapper3D.h>
#include <vtkRenderWindow.h>
#include <vtkRenderWindowInteractor.h>
#include <vtkInteractorStyleImage.h>
#include <vtkRenderer.h>
#include <vtkImageActor.h>
#include <vtkImageCast.h>
 
int main(int, char *[])
{
  // Create an image
  vtkSmartPointer<vtkImageGridSource> source =
    vtkSmartPointer<vtkImageGridSource>::New();
  source->SetFillValue(122);
  source->Update();
 
  vtkSmartPointer<vtkImageCast> castFilter =
    vtkSmartPointer<vtkImageCast>::New();
  castFilter->SetInputConnection(source->GetOutputPort());
  castFilter->SetOutputScalarTypeToUnsignedChar();
  castFilter->Update();
 
  // Create an actor
  vtkSmartPointer<vtkImageActor> actor =
    vtkSmartPointer<vtkImageActor>::New();
  actor->GetMapper()->SetInputConnection(castFilter->GetOutputPort());
 
  // Setup renderer
  vtkSmartPointer<vtkRenderer> renderer =
    vtkSmartPointer<vtkRenderer>::New();
  renderer->AddActor(actor);
  renderer->ResetCamera();
 
  // Setup render window
  vtkSmartPointer<vtkRenderWindow> renderWindow =
    vtkSmartPointer<vtkRenderWindow>::New();
  renderWindow->AddRenderer(renderer);
 
  // Setup render window interactor
  vtkSmartPointer<vtkRenderWindowInteractor> renderWindowInteractor =
    vtkSmartPointer<vtkRenderWindowInteractor>::New();
  vtkSmartPointer<vtkInteractorStyleImage> style =
    vtkSmartPointer<vtkInteractorStyleImage>::New();
 
  renderWindowInteractor->SetInteractorStyle(style);
 
  // Render and start interaction
  renderWindowInteractor->SetRenderWindow(renderWindow);
  renderWindowInteractor->Initialize();
 
  renderWindowInteractor->Start();
 
  return EXIT_SUCCESS;
}

CMakeLists.txt

cmake_minimum_required(VERSION 2.8)
 
PROJECT(ImageGridSource)
 
find_package(VTK REQUIRED)
include(${VTK_USE_FILE})
 
add_executable(ImageGridSource MACOSX_BUNDLE ImageGridSource.cxx)
 
if(VTK_LIBRARIES)
  target_link_libraries(ImageGridSource ${VTK_LIBRARIES})
else()
  target_link_libraries(ImageGridSource vtkHybrid vtkWidgets)
endif()

Download and Build ImageGridSource

Click here to download ImageGridSource. and its CMakeLists.txt file.

Once the tarball ImageGridSource.tar has been downloaded and extracted,

cd ImageGridSource/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:

./ImageGridSource

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.