Usually you will get a better response if you post a working snippet that describes the problem.... if you ask people to flesh out your code to make it run, they just skip to the next node. :-)

I can't really say I understand your question, but remember, these GD graph modules are very basic; if you want alot of functionality in your graphs, you should look at the bigger graph modules, like Gnuplot and gnuplot.

I usually go right to the Tk::Canvas when I want a special graph.... it gives you total control.