Date: Wed, 10 Jan 2001 12:01:31 +0100
To: Chris Hecker <checker at d6.com>
Cc: Sven LUTHER <luther at dpt-info.u-strasbg.fr>, lablgtk at kaba.or.jp
Subject: Re: ortho viewing (was Re: resize event?)
Message-ID: <20010110120131.A2113 at lambda.u-strasbg.fr>
References: <4.3.2.7.2.20010105002151.00baf5c0 at shell16.ba.best.com> <4.3.2.7.2.20010105002151.00baf5c0 at shell16.ba.best.com> <20010109185300.A888 at lambda.u-strasbg.fr> <4.3.2.7.2.20010109125548.00bb5a90 at shell16.ba.best.com>
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In-Reply-To: <4.3.2.7.2.20010109125548.00bb5a90 at shell16.ba.best.com>; from checker at d6.com on Tue, Jan 09, 2001 at 01:04:39PM -0800
From: Sven LUTHER <luther at dpt-info.u-strasbg.fr>
Sender: Sven LUTHER <luther at lambda.u-strasbg.fr>

On Tue, Jan 09, 2001 at 01:04:39PM -0800, Chris Hecker wrote:
> 
> >  - the glarea being 600x400, this gives me an non-orthogonal view, which
> >    don't have correct 90° angles.
> 
> You need to work the aspect ratio into your orthographic projection.  I've attached a simple sample app that works with labltk and lablgl so you can see how it works.  It draws a unit triangle that should look isoceles on the screen.
> 

Thanks for the answer, will be trying it out.

That said i tried to do some hand ratio setting without much sucess, but
surely i did something wrong.

Friendly,

Sven Luther