Hi Daniele  the offset distance required for a particular angle and extrusion height can be calculated by this formula: Offset dist = Height x Tan( angle )
Could you maybe answer a few questions on how you'd expect a tapered extrude to work? This would help me when I get a chance to work on it.
Do you expect a positive angle to go "outwards" and a negative angle to go inwards?
I mean like a positive 18 degrees would give this:
And 18 degrees would give this:
Or is that reversed from what you'd expect?
The angle is measured with the straight extrusion direction being 0 degrees, right?
Do these things always happen on planar curves, or is there some construction that you would expect to be able to do on a nonplanar curve?
Are these always done on a closed loop, or do you need to do them on some open curves like a line segment?
On things with sharp corners, how would you expect the corners to be filled in? Like for example in this situation:
Should those corners be filled in with a little round arc type piece, or should they fill in with a straight extension to make a new sharp corner there? Is it important to switch between either one of these corner methods?
Thanks,
 Michael
