Re: [PyOpenGL-Users] OpenContext and orthogonal view

[Mike C. F. <mcf...@ro...>]

OpenGLContext really wasn't designed for use with Orthographic views (it 
wasn't designed to exclude them, but it has no explicit support for 
them).  The relevant places to stick your fingers would likely be the 
viewplatform and the viewplatformmixin modules.  The ViewPlatformMixin 
class is a mix-in to have the context delegate viewpoint and 
projection-matrix setup to a ViewPlatform object.  The default 
ViewPlatform object is pretty simple to follow, you'll likely want to 
sub-class it, change the navigation mechanisms and then use the 
appropriate glOrtho instead of gluPerspective call in the render method.

If you're just trying to do this for a simple demo/test, however (i.e. 
you don't want keyboard navigation in your ortho view), you may find 
overriding the whole of the Viewpoint method on your Context serves your 
needs (the mix-in class just overrides this and delegates to the platform).

HTH,
Mike

Nicolas Charpentier wrote:

> Hi,
> I'm new to pyOpengl and OpenContext. I'm trying to build an orthogonal 
> view. Without OpenContext, I can use glOrtho() to build the view but 
> how  can I do with OpenContext.
> by advance, thanks for your help.
>
> Nicolas Charpentier

 
________________________________________________
  Mike C. Fletcher
  Designer, VR Plumber, Coder
  http://members.rogers.com/mcfletch/
  blog: http://zope.vex.net/~mcfletch/plumbing/