[postgis] polygon intersection function

[simon mercier]

hi

I need a function that give area from intersection of polygon geometry
in Postgres.  From previous comment of Dave B., we see that polygon
overlay function is style in the TODO list... :(  Is there someone
already work on this type of function? I find in mapserver list
archive(from Stephen Lime)  a C library to do this function.

http://www.cs.man.ac.uk/aig/staff/alan/software/gpc.html

Is there other library to do this or anything else to help me?

--
Simon Mercier
Direction des technologies de l'information
La Financière agricole du Québec
5825, rue Saint-Georges
Lévis, Québec,Canada G6V 4L2
http://www.financiereagricole.qc.ca/




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