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Re: Graphics: add missing axes properties
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From: |
Michael Goffioul |
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Subject: |
Re: Graphics: add missing axes properties |
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Date: |
Sat, 19 Jan 2008 00:06:09 +0100 |
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.