[mapserver-users] PHP Mapscript and querying/point conversion.

[Ben Logan]

Hi again,

I would like to perform queries with PHP Mapscript, but I can't quite
figure out how.  What I would like is for the user to click on the
map image, and my script to return info on the shape closest to the
click (for example a road, river, etc).  Can anyone give me pointers
on how to do this?

One thing that is confusing me, is that all of the query functions
take georeferenced coords as args, but I never know anything but the
pixel coords of a user click.  I haven't been able to figure out how
to convert between pixel and georeferenced coordinates.

Thanks for any help,
Ben

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Ben Logan: ben at wblogan dot net
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