ITK  5.3.0
Insight Toolkit
SphinxExamples/src/Core/Common/CreateAnImageOfVectors/Code.cxx
/*=========================================================================
*
* Copyright NumFOCUS
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0.txt
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*=========================================================================*/
#include "itkVector.h"
#include "itkImage.h"
int
main(int, char *[])
{
using PixelType = itk::Vector<float, 3>;
using ImageType = itk::Image<PixelType, 3>;
// Then the image object can be created
ImageType::Pointer image = ImageType::New();
// The image region should be initialized
const ImageType::IndexType start = { { 0, 0, 0 } }; // First index at {X,Y,Z}
const ImageType::SizeType size = { { 200, 200, 200 } }; // Size of {X,Y,Z}
region.SetSize(size);
region.SetIndex(start);
// Pixel data is allocated
image->SetRegions(region);
image->Allocate();
// The image buffer is initialized to a particular value
ImageType::PixelType initialValue;
// A vector can initialize all its components to the
// same value by using the Fill() method.
initialValue.Fill(0.0);
// Now the image buffer can be initialized with this
// vector value.
image->FillBuffer(initialValue);
const ImageType::IndexType pixelIndex = { { 27, 29, 37 } }; // Position {X,Y,Z}
ImageType::PixelType pixelValue;
pixelValue[0] = 1.345; // x component
pixelValue[1] = 6.841; // y component
pixelValue[2] = 3.295; // x component
image->SetPixel(pixelIndex, pixelValue);
ImageType::PixelType value = image->GetPixel(pixelIndex);
std::cout << value << std::endl;
return EXIT_SUCCESS;
}
itk::Vector
A templated class holding a n-Dimensional vector.
Definition: itkVector.h:62
itk::GTest::TypedefsAndConstructors::Dimension2::SizeType
ImageBaseType::SizeType SizeType
Definition: itkGTestTypedefsAndConstructors.h:49
itkImage.h
itk::GTest::TypedefsAndConstructors::Dimension2::IndexType
ImageBaseType::IndexType IndexType
Definition: itkGTestTypedefsAndConstructors.h:50
itk::GTest::TypedefsAndConstructors::Dimension2::RegionType
ImageBaseType::RegionType RegionType
Definition: itkGTestTypedefsAndConstructors.h:54
itkVector.h
itk::Image
Templated n-dimensional image class.
Definition: itkImage.h:88
itk::ImageRegion::SetSize
void SetSize(const SizeType &size)
Definition: itkImageRegion.h:174