read readRegion readRegionTo readShape readSize readTo readTo readTypeid reinit updateShape write writeRegion

readTo() [2/2] template<typename T , long n = 2> void Euclid::Fits::ImageRaster::readTo ( Subraster< T, n > &  subraster ) const Read the whole data unit into an existing Subraster. There are several options to read the whole data unit: as a new VecRaster object; by filling an existing Raster object; by filling an existing Subraster object. In the last two cases, the raster or subraster is assumed to already have a conforming shape. Warning Filling a Subraster is much slower than filling a Raster.