# GX_BOX_ADD_REFMAP
## Description
Adds the reference map to the box structure. The map will be cut out to
to have th field of view 10% larger then that of the box's basemap.
Spatial resolution of the remains the same as in given FITS
## Parameters
* *box* - GX-Simulator Compatible box structure
* *FITS_file* - file name of the FITS containing the base map
## Keywords
* *id* - ID of the reference map (e.g. "Bz reference")