Re: What to do wanting a 4th order Bézier?

[Urs Liska]

Am 19.09.2016 um 20:50 schrieb David Kastrup:
> Urs Liska <address@hidden> writes:
> 
> [...]
> 
> You are working with slopes here.  Don't.  They don't support vertical
> lines.
> 

Yes, that's what I realized ...

> Please take a look at the recently added functions
> 
>    ly:length ly:angle ly:directed
> 
> They will usually make it easy to do the operations you want.  In
> particular ly:directed can also use a vector as a direction without ever
> calculating its angle.

Thanks! From looking at the docs it seems they'll do exactly what I want
(and had partially implemented in Scheme). Can't wait to return to my
LilyPond computer :-)

-- 
Urs Liska
www.openlilylib.org