[PD] how to know line~ has finished

[Roman Haefeli]

hi jasch and thomas

this approach has some disadvantages. first, [line~] does execute
messages only on block boundaries, that means the start is floating
somwewhere around between now and 1.45ms later (with blocksize of 64 @
44100Hz sr), though i don't know if [line~]'s endpoint is quantized to a
block boundary as well. however, [threshold~] does send 'bang's on
blockboundaries as well. further, if possible, i would avoid 'measuring'
the output of [line~] with [threshold~], since that means converting a
message to signal and then back from siglal to a message again. this
isn't necessary at all here, because [delay] does exactly what you want
(see andy's post about the 'why'). 
to have it _really_ (even subsample) accurate, you could use [vline~].
[vline~] uses scheduled messages (that are generated by [delay], [metro]
and probably other objects) to start a ramp at an arbitrary time, not
only on the blockboundaries. 
using a [vline~]/[delay] construction is far the best solution for your
needs, i'd say, jasch; and both objects are internals.

roman

   
 
On Sun, 2007-07-15 at 16:18 -0400, Thomas O Fredericks wrote:
> Line~ is not the same as line~
> But you can simulate Line~'s behavior with Pd's basic objects. See the
> attached patch.
> 
> Tom
> 
> On 7/15/07, jasch <j at jasch.ch> wrote:
> > hmm, errm, yes well, i'm actually running PDa on an ARM procesor ;=)
> >
> > anybody wants to port cyclone to PDa ? (hello fixed point DSP...)
> >
> > /*j  {chuckles}
> >
> > > You can also use Line~ or curve~, both from the cyclone lib and
> > > included in Pd Extended.
> >
> >
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> 
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