This represents the box datatype within org.postgresql.
This represents org.postgresql's circle datatype, consisting of a point and a radius
This implements a line represented by the linear equation Ax + By + C = 0
This implements a lseg (line segment) consisting of two points
This implements a path (a multiple segmented line, which may be closed)
It maps to the point datatype in org.postgresql.
This implements the polygon datatype within PostgreSQL.
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