2015-03-17 15:52 GMT+01:00 Kevin Barry <address@hidden>: > If I knew more about mathematics I might know how to calculate the >tangent to a > bezier curve at the end point (to know how much to rotate the arrowhead) >and the > function wouldn't be such a hack.
The tangent to a bezier curve at the endpoint is the line that goes from the endpoint to the control point. It's really easy to get if you have the bezier definition. So for a bezier that goes from (0,0) through (1,1) and (2,1) to (3,0), the outward tangent at the first end is in the direction (-1,-1), and the outward tangent at the second end is (1,-1). HTH, Carl _______________________________________________ lilypond-user mailing list lilypond-user@gnu.org https://lists.gnu.org/mailman/listinfo/lilypond-user
