Line algorithim for python and numeric

[Fredrik Lundh]

Theerasak Photha wrote:

> I'm not in kolluge yet and I just learned about linear interpolation
> today---although I don't think it would necessarily apply to this
> problem, where the increments set by the grid might be more discrete
> than the line itself

that's usually solved by stepping along the grid in one direction, and 
interpolating in the other.

</F>