[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: Graphics: add missing axes properties
From: |
Shai Ayal |
Subject: |
Re: Graphics: add missing axes properties |
Date: |
Sat, 19 Jan 2008 07:49:44 +0200 |
On Jan 19, 2008 1:06 AM, Michael Goffioul <address@hidden> wrote:
> On 1/18/08, Shai Ayal <address@hidden> wrote:
> > Michael, what are the x_*transform properties?
>
> These are properties that store the various transformation
> matrices. In Matlab, they are hidden, so there's no compatibility
> issue. However they can be used by any graphics backend, so
> I think it's good to have them available and computed in a
> common way. The meaning of the various matrices are:
> - view : unit-cube transformation matrix (== rotation around axis)
> - projection : orthographic/perpective projection on camera plane
> - viewport : map camera plane to windows coordinates
> - normrender : viewport * projection * view
> - render : S * normrender, where S is the scaling/translation from
> actual axis limits to the unit-cube (taking into account aspect ratios)
>
> Michael.
>
Where do you get info on theses hidden properties? are they documented anywhere?
Shai