On mercredi 3 décembre 2008, Charles Capaday wrote: > I'm interested in developing a graph object in Gambas to plot points, > curves etc. Are there language statements for coordinate transformations > such as to make, for example, the pixel locations of a rectangle into > x,y coordinate values? > > > Cheers, > > > Dr. Charles Capaday > Professor & Director > Brain and Movement Lab. > Dept. of Anatomy & Physiology > Faculty of Medicine, Laval University > http://www.brainandmovementlab.org/ > > Mailing address: > CRULRG F-6500 > Hopital Robert-Giffard > 2601 de la Canardiere, Beauport, QC > G1J 2G3 Canada > > Tel: +418-663-5747 (Sec.) > +418-663-5000 ext. 6736 (Off.) > +418-663-5000 ext. 6877 (Lab.) > Fax: +418-663-8756 >
No, because it is not very complex to do. Moreover, you have to use different algorithms according to what you are drawing. If you want to draw a curve, a simple matrix multiplication and a translation applied to point coordinates are enough. But if you want to implement a print preview (fox example), you will have to map positions and dimensions differently, to minimize drawing errors. Regards, -- Benoit Minisini ------------------------------------------------------------------------------ SF.Net email is Sponsored by MIX09, March 18-20, 2009 in Las Vegas, Nevada. The future of the web can't happen without you. Join us at MIX09 to help pave the way to the Next Web now. Learn more and register at http://ad.doubleclick.net/clk;208669438;13503038;i?http://2009.visitmix.com/ _______________________________________________ Gambas-user mailing list Gambas-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/gambas-user
