Hatched Map The basic appearance of maps is controlled by device files, which define sets of colours, fonts, line types, polygon fill types etc. Many device files are provided with OzGIS and you can set up your own. Sets of device files are provided for 16 and 256 colour video boards, for hatching on line devices or for colour simulation on plotters. Hardcopy maps can be output to several devices. Under WINDOWS maps can be output directly to a printer. The OzMap program can output maps to printers, plotters and various types of graphics meta-files (using a suitable device file).