[Development] Move math3d from QtGui to QtCore

[Uwe Rathmann]

On 07/05/2012 11:32 AM, Thiago Macieira wrote:

> Before that, you need to tell us if Eigen isn't enough:
>

This is not what - at least - I had in mind. I was thinking about 
algorithms like:

- Sutherland Hodgman
- Douglas Peucker
- Quadtrees, R-trees
- Interpolation ( bilinear, trilinear ... )
- CONREC
- stuff you find in QPainterPath ( what should better be "QShape" 
following GIS terminology )
- ...

All these algos have been implemented many, many times, but when you 
want to avoid to copy from and to Qt classes you will have to implement 
your own version. I'm pretty sure, that you will find redundant 
implementations when looking inside Qt, graphic libraries like libraries 
like Qwt and - of course - in any GIS related code.

Uwe