gdalgorithms-list

[Algorithms] How to derive transformation matrices

[Lorrimar <lor...@tr...>]

I'm curious on how to derive transformation matrices in 2d and 3d for things
like shear and rotate. I've had an attempt at the maths but it didn't really
work out. I'm wondering if anyone knows any internet resources that derive
these matrices, and not just provide them.

Cheers
/Rodney

Re: [Algorithms] How to derive transformation matrices

[<ro...@do...>]

Lorrimar  wrote:

>I'm curious on how to derive transformation matrices in 2d and 3d for things
>like shear and rotate. I've had an attempt at the maths but it didn't really
>work out. I'm wondering if anyone knows any internet resources that derive
>these matrices, and not just provide them.
>

Right.  The internet is not a good place to look for such elementary
derivations.  Fortunately, there are tons of math textbooks that give
them.  Check you  local library.

Re: [Algorithms] How to derive transformation matrices

[Stephen J B. <sj...@li...>]

On Sun, 23 Jul 2000, Lorrimar wrote:

> I'm curious on how to derive transformation matrices in 2d and 3d for things
> like shear and rotate. I've had an attempt at the maths but it didn't really
> work out. I'm wondering if anyone knows any internet resources that derive
> these matrices, and not just provide them.
 
Read this:

  http://web2.airmail.net/sjbaker1/matrices_can_be_your_friends.html

Steve Baker                      (817)619-2657 (Vox/Vox-Mail)
L3Com/Link Simulation & Training (817)619-2466 (Fax)
Work: sj...@li...           http://www.link.com
Home: sjb...@ai...       http://web2.airmail.net/sjbaker1