On Mit, 2013-04-10 at 22:28 +0200, Cyrille Henry wrote: > hello, > > you just have to put the gemhead in the gemlist befor the glBegin. > see attachement.
Got it. Thanks. Roman > Le 10/04/2013 22:11, Roman Haefeli a écrit : > > On Mit, 2013-04-03 at 11:59 +0200, Cyrille Henry wrote: > >> hello, > >> > >> you have lot's of solution to draw a sinus curve in Gem. > > > > [...] > > > >> you can also do like in openGL : using GEMglBegin, GEMglVextex (many > >> of them thanks to an iterative loop), and GEMglEnd > > > > I'm interested in understanding that approach. So far I was able to draw > > a simple line: > > > > [gemhead] > > | > > [GEMglBegin GL_LINES] > > | > > [GEMglVertex2d -2 -2] > > | > > [GEMglVertex2d 2 2] > > | > > [GEMglEnd] > > > > But how are you creating an iterative loop out of this? I tried after > > GEMglBegin: > > > > [t a b a] > > | | \ > > | [20( \ > > | | \ > > | [until]\ > > | | \ > > | [gemlist ] > > | | <- put the two [GEMglVertex2d] here. > > | > > [GEMglEnd] > > > > However, this causes an error on every frame: > > GL: invalid operation > > > > What is the correct way to do this? > > > > Roman > > > > > > > >> Le 02/04/2013 23:18, Alexandros Drymonitis a écrit : > >>> I want to build this visual http://processing.org/learning/trig/ in Pd, > >>> but I want the sine curve to be drawn dynamically with every circle spin. > >>> It seems quite hard though. > >>> > >>> I don't know which object would be best. I tried either [curve] but the > >>> parameters are way too many and I'm not sure if precision is really > >>> possible. Then I tried [square 0.008] in combination with [repeat] but > >>> also doesn't work. > >>> Anyone knows how to do this? > >>> > >>> > >>> _______________________________________________ > >>> Pd-list@iem.at mailing list > >>> UNSUBSCRIBE and account-management -> > >>> http://lists.puredata.info/listinfo/pd-list > >>> > >> > >> _______________________________________________ > >> Pd-list@iem.at mailing list > >> UNSUBSCRIBE and account-management -> > >> http://lists.puredata.info/listinfo/pd-list > > > > > > > > _______________________________________________ > > Pd-list@iem.at mailing list > > UNSUBSCRIBE and account-management -> > > http://lists.puredata.info/listinfo/pd-list > > > _______________________________________________ > Pd-list@iem.at mailing list > UNSUBSCRIBE and account-management -> > http://lists.puredata.info/listinfo/pd-list _______________________________________________ Pd-list@iem.at mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list