#include <FileMemRegions.h>

Detailed Description

template<long n = 2>
class Euclid::Fits::FileMemRegions< n >

Mapping between an in-file (FITS image data unit) region and an in-memory (raster) region for reading and writing image regions.

In-file and in-memory regions have the same shape. Both back positions cannot be -1 at the same index at the same time.

Public Member Functions
	FileMemRegions (const Position< n > &filePosition, const Region< n > &memoryRegion=Region< n >::whole())
	Create a mapping from an in-file position and an in-memory region. More...

	FileMemRegions (const Region< n > &fileRegion, const Position< n > &memoryPosition=Position< n >::zero())
	Create a mapping from an in-file region and an in-memory position. More...

const Region< n > &	file () const
	Get the in-file region.

Position< n >	fileToMemory () const
	Compute the translation vector from in-file region to in-memory region.

const Region< n > &	memory () const
	Get the in-memory region.

Position< n >	memoryToFile () const
	Compute the translation vector from in-memory region to in-file region.

void	resolve (const Position< n > &fileBack, const Position< n > &memoryBack)
	Resolve the unknown (-1) indices, given known in-file and in-memory back positions.

Related Functions
(Note that these are not member functions.)
template<long n>
FileMemRegions< n >	makeMemRegion (const Position< n > &memoryPosition)
	Create a `FileMemRegions` with whole in-file region.

template<long n>
FileMemRegions< n >	makeMemRegion (const Region< n > &memoryRegion)
	Create a `FileMemRegions` with in-file position at origin.

The documentation for this class was generated from the following file:

Public Member Functions