[Geowanking] Simple formula for calculating if points are included in an irregularly-shaped polygon Open Layers w/ Open Street Map?
William J. Spat
wspat at ioto.ca
Wed Sep 16 07:23:47 PDT 2009
I wanted to pick the collective, dissociated geowanking brain on a problem
that has me stumped.
I need to set a region in Open Layers using Open Street Map, and then
automatically determine if a given point falls within that region.
I've come up with a simple formula that works with a quadrilateral-shaped
boxed region, but some possible regions are more complicated than that,
having more than four sides and not being exactly box shaped.
Does anyone have any suggestions for a more robust formula that would work
for a greater range of region shapes? Or a clever work-around?
Thanks in advance,
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