[R-sig-Geo] RE : determining suitable lakes for landing

[Karl Ove Hufthammer]

Karl Ove Hufthammer skreiv:

> Perhaps using a 2D Boyer–Moore-style algorithm on the raster could work?
> http://techreports.lib.berkeley.edu/accessPages/CSD-93-784.html
> 
> Of course, this doesn’t help with the orientation problem,

But this one does (I think):

Optimal Exact and Fast Approximate Two Dimensional 
Pattern Matching Allowing Rotations
http://www.cwr.cl/publicaciones/cpm02.1.pdf

-- 
Karl Ove Hufthammer
E-mail: karl at huftis.org
Jabber: huftis at jabber.no