SymMAP.NET
SymMAP.NET is an open source project attempting to support symbol lang
A symbol language is designed to support common algebra-like symbols to operate on graphical objects, such as points and colors, for functions such as aggregation,coloring, or animation.
However, the initial support of SymMAP.NAT on symbol languages is very primitive. For now, only the following symbol operation are supported:
p(lat,lon) : define a point with lat and lon. The point name can be any name, preferrably lower case for the first letter.
A[p1, p2, ..., pn] : A represents one set...