hiscale_mag_rate_stream::get_valid_systems

Source: stream/rate/Mag/Hiscale/hiscale_mag_rate_stream__get_valid_systems.pro

 hiscale_mag_rate_stream::get_valid_systems
        Return a list of valid coordinate systems for HISCALE mag
        plots.

 Usage:
        slist = strref -> get_valid_systems()

 History:
        Original: 7/7/00; SJT