Thread:Fandyllic/@comment-27075564-20170724155029/@comment-1077307-20171025035552

http://vignette.wikia.nocookie.net/central/images/0/0b/Witcher-Map_Module-Lightbox_Image_Aribtrarty_Map_Coordiate_Extents_-_No_more_0-100_only.png/revision/latest/scale-to-width-down/900

Note the coords in the upper left corner, the ones you see when you hover the mouse over the map. Non 100% style coords. Then can be set per map. In this case the mouse cursor was lower-right on the map when the screenshot was made.

This is necessary for maps that have existing well known coordinates and necessary for allowing maps to be cut-up or used which don't fit perfect 0-100. To use existing Witcher data for example there's no 0 - 100. The coords can also be negative, like is needed for Witcher maps.