I have a package that queries for a set of map coordinates, renders
them using a package called Generic Mapping Tool (GMT), and eventually
displays an image in
a web page along with the text-based data. Yes, it is a scary kludge
when you do a lot of work to
generate a postscript file then turn around and turn it into a PNG. For
frequent requests, I'd like to cache the image. Where's an appropriate
place in the file system for this sort of thing? Is there a way to
tell the request
processor to "look here" so to speak? Since this package can be
installed multiple times, I need a namespace that won't collide on
different package ids.
I am open to other workable alternatives to GMT if you've got any
suggestions. It was never designed for this sort of application.