  Simplification is one of the fundamental operations used in geoinformation
science (GIS) to reduce size or representation complexity of geometric objects.
Although different simplification methods can be applied depending on one's
purpose, a simplification that many applications employ is designed to preserve
their spatial properties after simplification. This article addresses one of
the 2D simplification methods, especially working well on human-made structures
such as 2D footprints of buildings and indoor spaces. The method simplifies
polygons in an iterative manner. The simplification is segment-wise and takes
account of intrusion, extrusion, offset, and corner portions of 2D structures
preserving its dominant frame.
