A region consists of one or more polygons. Each polygon is uniquely defined. In an MIF/MID file, you do not need to close a polygon. The last point in the polygon automatically attaches to the first point in a polygon with a line segment. The format for a region object is as follows:
REGION #pgons numpts1
x1 y1 x2 y2
.
.
numpts2 x1 y1 x2 y2
.
.