[Pipmak-Devel] Would like to make a small addition to Pipmak

[rivenwanderer <riv...@ya...>]

I'm not that familiar with Pipmak's source code, nor with Lua in general. 
However, I'd like to add the option to specify handle locations in terms of the
center of the rectangle (with perhaps parameters name [caz, cel] or something
similar).  Internally, this could hopefully just be mapped back to the regular
representation (az=caz-w/2, el=cel+h/2) in a seamless way so that the rest of
the treatment of handles would be unaffected.

Can anyone point me at the portion of the source where this could be
accomplished?  In general, is there any documentation of the overall structure
of Pipmak's architecture?

Thanks!
-rivenwanderer