Thanks, mate!

That is certainly moving me in the right direction. Sorry I have no merit badges to offer you, but perhaps the last three XP I had to share today might help. I also opened a list of your posts and if the XP genies come back around before my browser runs my system out of memory again, I'd be happy to share a few more your way.

My next step will be to make all the image sizes a function of the image's overall deminsions. As it is, when I tried to scale the image down to a usuable size, it cut off most of the content as outside it bounds. This is something I hope to make use of for years to come. Perhaps your code might serve as the basis for a new method / module as GD::Graph::thermometer, if the GD::Graph maintainer will have it. Otherwise I intend to maintain a personal version.

Thanks again. This moves a data cruncher so close to delivering on a graphical requirement that I see light at the end of this tunnel.

-- Hugh