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? > > > > > > _______________________________________________ > > [email protected] mailing list > > UNSUBSCRIBE and account-management -> > > http://lists.puredata.info/listinfo/pd-list > > > > _______________________________________________ > [email protected] mailing list > UNSUBSCRIBE and account-management -> > http://lists.puredata.info/listinfo/pd-list _______________________________________________ [email protected] mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list
