[PyX-devel] Re: [PyX-user] Some geometry thoughts

[Andre W. <wo...@us...>]

Hi,

I'm moving my posting to pyx-devel ... I think its a much better place
to post the following code. (Magnus, you're listing here, don't you? I
think I remember your name from when I looked at the subscriber list
quite some time ago.)

On 27.07.04, Andre Wobst wrote:
> Beside that my main concern is, whether its enough to stick on this
> strict assignments. This is quite a limitation. We can't compete to
> MetaPost by that (but we want, don't we?). I'm not sure whether its
> possible to cook it all down to an Equality-function:
> 
>     Equal(b, a + Point(10, 0))

I just couldn't resist: A linear equation solver can be easily build
like this. Find some code enclosed. You may consider to go along that
line (just in case you want to spend some time on this issue). I
think, a 2d-point can be build on top of this already by combining two
variables. The same for higher dimension points. I'm not totally sure
whether a transformation can be easily integrated in that concept. My
grasp tells me, that a transformation contains another set of
variables (6 for a 2d->2d affine transformation). When multiplying
with a (lazy) point (two variables) the system becomes non-linear. I'm
kind of confused at the moment ... ;-)


André

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