VTK/Examples/Cxx/Images/ImageSliceMapper
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ImageSliceMapper.cxx
#include <vtkVersion.h>
#include <vtkImageData.h>
#include <vtkSmartPointer.h>
#include <vtkRenderWindow.h>
#include <vtkRenderWindowInteractor.h>
#include <vtkInteractorStyleImage.h>
#include <vtkRenderer.h>
#include <vtkImageMapper.h>
#include <vtkImageSliceMapper.h>
#include <vtkImageSlice.h>
void CreateColorImage(vtkImageData*);
int main(int, char *[])
{
vtkSmartPointer<vtkImageData> colorImage = vtkSmartPointer<vtkImageData>::New();
CreateColorImage(colorImage);
vtkSmartPointer<vtkImageSliceMapper> imageSliceMapper = vtkSmartPointer<vtkImageSliceMapper>::New();
#if VTK_MAJOR_VERSION <= 5
imageSliceMapper->SetInputConnection(colorImage->GetProducerPort());
#else
imageSliceMapper->SetInputData(colorImage);
#endif
vtkSmartPointer<vtkImageSlice> imageSlice = vtkSmartPointer<vtkImageSlice>::New();
imageSlice->SetMapper(imageSliceMapper);
// Setup renderers
vtkSmartPointer<vtkRenderer> renderer = vtkSmartPointer<vtkRenderer>::New();
renderer->AddViewProp(imageSlice);
renderer->ResetCamera();
// Setup render window
vtkSmartPointer<vtkRenderWindow> renderWindow = vtkSmartPointer<vtkRenderWindow>::New();
renderWindow->SetSize(300, 300);
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;
}
void CreateColorImage(vtkImageData* image)
{
image->SetDimensions(10, 10, 1);
#if VTK_MAJOR_VERSION <= 5
image->SetNumberOfScalarComponents(3);
image->SetScalarTypeToUnsignedChar();
image->AllocateScalars();
#else
image->AllocateScalars(VTK_UNSIGNED_CHAR,3);
#endif
for(unsigned int x = 0; x < 10; x++)
{
for(unsigned int y = 0; y < 10; y++)
{
unsigned char* pixel = static_cast<unsigned char*>(image->GetScalarPointer(x,y,0));
pixel[0] = 255;
pixel[1] = 0;
pixel[2] = 255;
}
}
}
Please try the new VTKExamples website.
CMakeLists.txt
cmake_minimum_required(VERSION 2.8)
PROJECT(ImageSliceMapper)
find_package(VTK REQUIRED)
include(${VTK_USE_FILE})
add_executable(ImageSliceMapper MACOSX_BUNDLE ImageSliceMapper.cxx)
if(VTK_LIBRARIES)
target_link_libraries(ImageSliceMapper ${VTK_LIBRARIES})
else()
target_link_libraries(ImageSliceMapper vtkHybrid vtkWidgets)
endif()
Download and Build ImageSliceMapper
Click here to download ImageSliceMapper. and its CMakeLists.txt file.
Once the tarball ImageSliceMapper.tar has been downloaded and extracted,
cd ImageSliceMapper/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:
./ImageSliceMapper
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.