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I tried to identity thousands of points with millions polygon. ArcInfo work well but i have to get the result from Web Services.So i tried to implement the algorithm(Point in polygon) by myself,it doesn't work efficiently. Is there any faster algorithm or implementation for solve this?

Appreciate any suggestion.

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what algorithm are you using? Code would help. –  Kelso Apr 27 '12 at 4:15
What software you are using? In case you are using PostGIS, you can use ST_Contains : postgis.refractions.net/docs/ST_Contains.html which is quite an efficient function for point in polygon search. –  thelastray Apr 27 '12 at 4:34
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closed as unclear what you're asking by blah238, Paul, Jason Scheirer, Curlew, Fezter Oct 28 '13 at 1:26

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