Small errors in end tangents, by davelloyd

[_Aka_]

I was banning spam accounts, and accidentally banned a valid post by davelloyd. I am recreating this post to continue the initial discussion.

Basically davelloyd was wondering about the computation of the tangent of the last point on bezier splines.

The tangents in all splines are computed in a quick manner by computing the direction between two very close neighboring points. This direction can differ from the actual tangent computed via mathematical means (but slower means). I have some unreleased code from a previous version that adds the option to select whether to use fast tangent calculation or precise one for Bezier splines.

@davelloyd, I will send you the code via PM