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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
/**
* @class vtkMetaImageWriter
* @brief write a binary UNC meta image data
*
* One of the formats for which a reader is already available in the toolkit is
* the MetaImage file format. This is a fairly simple yet powerful format
* consisting of a text header and a binary data section. The following
* instructions describe how you can write a MetaImage header for the data that
* you download from the BrainWeb page.
*
* The minimal structure of the MetaImage header is the following:
*
* NDims = 3
* DimSize = 181 217 181
* ElementType = MET_UCHAR
* ElementSpacing = 1.0 1.0 1.0
* ElementByteOrderMSB = False
* ElementDataFile = brainweb1.raw
*
* * NDims indicate that this is a 3D image. ITK can handle images of
* arbitrary dimension.
* * DimSize indicates the size of the volume in pixels along each
* direction.
* * ElementType indicate the primitive type used for pixels. In this case
* is "unsigned char", implying that the data is digitized in 8 bits /
* pixel.
* * ElementSpacing indicates the physical separation between the center of
* one pixel and the center of the next pixel along each direction in space.
* The units used are millimeters.
* * ElementByteOrderMSB indicates is the data is encoded in little or big
* endian order. You might want to play with this value when moving data
* between different computer platforms.
* * ElementDataFile is the name of the file containing the raw binary data
* of the image. This file must be in the same directory as the header.
*
* MetaImage headers are expected to have extension: ".mha" or ".mhd"
*
* Once you write this header text file, it should be possible to read the
* image into your ITK based application using the itk::FileIOToImageFilter
* class.
*
*
*
* @sa
* vtkImageWriter vtkMetaImageReader
*/
#ifndef vtkMetaImageWriter_h
#define vtkMetaImageWriter_h
#include "vtkIOImageModule.h" // For export macro
#include "vtkImageWriter.h"
namespace vtkmetaio
{
class MetaImage;
} // forward declaration
VTK_ABI_NAMESPACE_BEGIN
class VTKIOIMAGE_EXPORT vtkMetaImageWriter : public vtkImageWriter
{
public:
vtkTypeMacro(vtkMetaImageWriter, vtkImageWriter);
void PrintSelf(ostream& os, vtkIndent indent) override;
/**
* Construct object with FlipNormals turned off and Normals set to true.
*/
static vtkMetaImageWriter* New();
/**
* Specify file name of meta file
*/
void SetFileName(VTK_FILEPATH const char* fname) override;
VTK_FILEPATH VTK_FUTURE_CONST char* GetFileName() VTK_FUTURE_CONST override
{
return this->MHDFileName;
}
///@{
/**
* Specify the file name of the raw image data.
*/
virtual void SetRAWFileName(VTK_FILEPATH const char* fname);
virtual VTK_FILEPATH VTK_FUTURE_CONST char* GetRAWFileName() VTK_FUTURE_CONST;
///@}
virtual void SetCompression(bool compress) { this->Compress = compress; }
virtual bool GetCompression() { return this->Compress; }
// This is called by the superclass.
// This is the method you should override.
void Write() override;
protected:
vtkMetaImageWriter();
~vtkMetaImageWriter() override;
vtkSetFilePathMacro(MHDFileName);
char* MHDFileName;
bool Compress;
private:
vtkMetaImageWriter(const vtkMetaImageWriter&) = delete;
void operator=(const vtkMetaImageWriter&) = delete;
vtkmetaio::MetaImage* MetaImagePtr;
};
VTK_ABI_NAMESPACE_END
#endif
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