minetestmapper-numpy: new command line option --facing (down=default, up, north, south, east and west) to draw cross-sections as well as top-down views of the map. all views are no drawn as if standing at the edge of the box defined by --region, --minheight and --maxheight (e.g. as if sitting on top of the box for --facing=down, as if look at the box from the northern side (highest z axis value of the box) for south). required considerable refactoring of the database lookup code
minetestmapper-numpy: execute bit
minetestmapper-numpy: tweaked command line arguments (default max and min height, desciptions)
minetestmapper-numpy.py: 1. fix rendering of north and east (incorrect default maxy value for those direciton) 2. better fog implementation (including command line args --fog for fog strength and --fogcolor to set it's color)
minetestmapper-numpy: correct drop shading calculation for north and east facing cross-sections