Re: [pygtk] Curves, splines and libart
Thanks all three of you for your answers. I've already implemented an algorithm using the method I described in my mail, if anyone is interrested in it... I'ts a but funny though, but gives interresting results, probably has best use in interactive demos :) . Cheers... Christian / Cybolic ___ pygtk mailing list [EMAIL PROTECTED] http://www.daa.com.au/mailman/listinfo/pygtk Read the PyGTK FAQ: http://www.async.com.br/faq/pygtk/
Re: [pygtk] Curves, splines and libart
On Ter, 2003-03-04 at 15:16, [EMAIL PROTECTED] wrote: Does anyone know how to draw an spline-curve? Or any other fancy type of curve that the user can drag and tweak? Is using art (libart) an option? libart in python? no, sorry. Maybe you should try gnomeprint. If you want interactivity, you should use gnome.canvas. They are both in the gnome-python package. Cheers... Christian / Cybolic ___ pygtk mailing list [EMAIL PROTECTED] http://www.daa.com.au/mailman/listinfo/pygtk Read the PyGTK FAQ: http://www.async.com.br/faq/pygtk/ -- Gustavo João Alves Marques Carneiro [EMAIL PROTECTED] [EMAIL PROTECTED] ___ pygtk mailing list [EMAIL PROTECTED] http://www.daa.com.au/mailman/listinfo/pygtk Read the PyGTK FAQ: http://www.async.com.br/faq/pygtk/
Re: [pygtk] Curves, splines and libart
libart in python? no, sorry. Okay, but does anyone know _how_ one can create a curve? I've though about using four x,y coordinates, start_x, start_y, modify_left_x, modify_left_y, modify_right_x, modify_right_y, and end_x, end_y, and then calculating a straight line from start_x,start_y to end_x,end_y, modifying the line afterwards, but I can't quite get my head wrapped around how. Maybe you should try gnomeprint. If you want interactivity, you should use gnome.canvas. They are both in the gnome-python package. I'll look, but does it handle curves? And also, I'd rather use something in Gtk or program it myself to avoid to many dependencies. Cheers... Cybolic ___ pygtk mailing list [EMAIL PROTECTED] http://www.daa.com.au/mailman/listinfo/pygtk Read the PyGTK FAQ: http://www.async.com.br/faq/pygtk/
Re: [pygtk] Curves, splines and libart
On Wed, 5 Mar 2003 [EMAIL PROTECTED] wrote: Okay, but does anyone know _how_ one can create a curve? You need to go get a basic computer graphics textbook. Computer Graphics: Principles and Practice in C (2nd Edition) by Foley, et al. is one of the canonical references. Splines require that you play with the derivatives and match those up as well. Normally, the control points are related to concavity changes on the derivatives. Good luck, -a ___ pygtk mailing list [EMAIL PROTECTED] http://www.daa.com.au/mailman/listinfo/pygtk Read the PyGTK FAQ: http://www.async.com.br/faq/pygtk/
[pygtk] Curves, splines and libart
Does anyone know how to draw an spline-curve? Or any other fancy type of curve that the user can drag and tweak? Is using art (libart) an option? Cheers... Christian / Cybolic ___ pygtk mailing list [EMAIL PROTECTED] http://www.daa.com.au/mailman/listinfo/pygtk Read the PyGTK FAQ: http://www.async.com.br/faq/pygtk/
