Chuckk Hubbard ha scritto:

> I agree that would be great.
> Incidentally, have you considered using canvases to draw your envelope?
>

nope. I ca't imagine how...
looking at the [cnv] help doesn't suggest me anything.

however, this is what I did: http://xaero.ath.cx/cms/en/adsr-new.html
it can be useful for graphing an ADSR, not for editing it.

>
>     I appreciate recently added datastructs new features.
>
>     however I think they still miss a big functionality:
>     often, to graphically represent a structure of data, are needed
>     various
>     type of calculations; it is pretty unuseful i.e. draw a polygon
>     with all
>     coordinates referred to 0,0 (object's center).
>
>     in order to paint a simple adsr struct, in addition to the
>     template, I
>     have to create a "data-controller", which prepares *ALL* points of the
>     adsr-graph ( e.g.: x1,y1,x2,y2,....), *NOT* only the a,d,s,r.
>
>     i guess this feature has been requested many times, but, wouldn't be
>     better have the ability of making additions,subtractions,etc directly
>     inside the drawpolygon declaration?
>
>     in that case, plotting that adsr line it's just:
>     [drawpolygon 0 900 0 0 a 100 (a+d) s (a+d+100) s (a+d+100+r) 0]
>
>     what pd developers says about this?
>
>     --
>     ciao
>     Federico