Michael A. Peters wrote:
I'm curious as to whether or not anyone is aware of existing php code to
plot data on a map.
Specifically - I'd like to divide the county I live in into hexagons,
feed various GPS coordinates to the php script, and the hexagon
containing the long/lat coordinated gets filled in (entire hexagon).
Purpose is to make a range map within my county of confirmed wild
reptiles/amphibians by species without providing the precise coordinates
for where the specimen was found.
I'm hoping there is already some existing php code I can adapt for this
kind of thing (hexagons are better than squares for this type of thing,
but I'm guessing a little more complex in the math to figure out which
hexagon a coordinate belongs to).
Any pointers appreciated.
I think you are looking at GIS data processing. I have looked at this
just in passing for another project but it may be useful.
http://opensourcegis.org/
http://www.qgis.org/
This is an OOo macro that may help you as well.
http://nothickmanuals.info/doku.php/articles:ooohg
--
Robin Laing