>>If you can find a way to speed up this routine via pixel peeking and >>poking, instead of the moveto and lineto and region stuff I do, I >>sure would like to know about it. >> >>Many thanks for your review. >> >>tedd > >Tedd, I've enclosed an example program I did for my own insight into >various methods of displaying/plotting curves. It is a compilation of >various methods presented here by members of this group and was very >informative to me in deciding how to display curves. GWorlds are not >used here, but PIXEL plotting methods from RP and RC are included and >may help you get a handle on the techniques used. > >Code follows and be sure to read the directions at the top of the program. Dick: Wow! That's impressive!!! Now, if I can only figure it out in terms of: a) instead of using moveto, use xxx; b) instead of using lineto, use yyy. Thanks for the food for thought -- I'll spend the rest of the day trying to understand it. tedd PS: Not meaning to take away form that impressive piece of work, but the comments presented a lot of errors for me and I had to spend a considerable amount of time editing (removing "I"'s ). Also, the use of "#fn GetPortBounds" worked only after I changed it to "fn GetPortBounds" -- -------------------------------------------------------------------------------- http://sperling.com/