trapezoidal distortion in X

[Kalle Vahlman]

2013/4/2 Magnus Kessler <Magnus.Kessler at gmx.net>
> What you describe here is referred to as "keystone correction" in the xorg
> documentation. In particular, you might want to have a look at the man page
> for xrandr. Look for the "--transform" option
>
> http://www.x.org/archive/current/doc/man/man1/xrandr.1.xhtml#heading4
>
> While the documentation doesn't give the exact recipe for keystone correction,
> all the underlying maths have been implemented for quite some time already.

The examples section seems to have a keystone correction xrandr
command to start playing with.

--
Kalle Vahlman, zuh at iki.fi
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