[PD] Graphical envelope generator with breakpoints

Fred Jan Kraan fjkraan at xs4all.nl
Sun Jan 8 13:06:32 CET 2017

Fred Jan

On 08-01-17 12:39, Liam Goodacre wrote:
> There is [envgen] from the ggee library, but you're probably looking for
> a Vanilla solution.
The tof library contains [breakpoints] and [breakpoints~], which are 
derived from [envgen].

> I would also like to see this done in data structures. Extra points if
> it can define a Bezier curve.

The filterview object from Hans Steiner did bezier curves, but he used 
Tcl/Tk code to make it happen. It would be cool if it could be used in 
other objects. https://puredata.info/downloads/filterview.

Fred Jan
> ------------------------------------------------------------------------
> *From:* Pd-list <pd-list-bounces at lists.iem.at> on behalf of Roman
> Haefeli <reduzent at gmail.com>
> *Sent:* 08 January 2017 11:00
> *To:* pd-list at mail.iem.at
> *Subject:* [PD] Graphical envelope generator with breakpoints
> Hey all
> I'm wondering if someone implemented a graphical envelope generator
> with mouse-draggable breakpoints. I think it probably could be done
> using data structures, however my stumbling block is that I can't think
> of a way to disallow point movement to x(n) > x(n+1), respectively x(n)
> < x(n-1).
> Preferably, it would allow to create new breakpoints in between
> existing breakpoints (as opposed to new breakpoints being appended to
> the end of the list).
> I'm not so much looking for the perfect solution, but wondering what is
> already there.
> Cheers
> Roman
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