Hi to all, im developing a filleting LPE tool [1]. For the moment and based in the work in powerstroke i have a LPE that:

* Create a Knot for each cusp node, with movement restricted to a curve. * Update Knots at path change/add/sustract/reverse/append/erase

Any body can point me about the usage of arcTo from Geom::Path?

The points i know are: start of arc, and end of arc, and think allways is 180ª arc. Other points/values need to be calculated. I have something in my mind but i want to have a expertice opinion.

Thanks for our time reading, Jabier.

[1] https://code.launchpad.net/~jabiertxof/inkscape/fillet