readRaster readRasterTo readRasterTo readRegion readRegionTo readRegionTo readShape readTypeid updateShape writeRaster writeRegion writeRegion

readRegionTo() [2/2] template<typename T , long m, long n> void Euclid::Cfitsio::ImageIo::readRegionTo ( fitsfile *  fptr, const Fits::Region< n > &  region, Fits::Subraster< T, m > &  destination  ) Read a region of the current image HDU into a pre-existing subraster. Parameters region The source region destination The destination subraster Similarly to a blit operation, this method reads the data line-by-line directly in a destination subraster.