I was wondering how I might automate a midi control using line. I've been able to assign it to go to 127 with a message and line, and then another message for 127 to 0. I'd like to have it ramp up and down continually, though, go from 0 to 127 to 0, indefinitely or until I stop it.
Any ideas? What I've tried, thus far, doesn't work.

Thanks in advance

I have been using [line] alot to make sure visuals move smoothly. Are you looking to send a message or bang a message to initiate the change?

[0( [127(
| /
| /
[pack f 500] This will make it ramp to the target over a period of 500 ms
|
|
[line]

I think that construction will work. I will try it here shortly and see if there are more solutions.

-Evan_

There's a number of way you could do this. One would be to fill an array with a triangle waveform and use [phasor~] to look it up via [tabread~] and use [snapshot~] to convert to message. This is basically an LFO approach. Or you could avoid audio altogether by using a [line] ramping up to lookup the array retriggering the ramp with [metro].

[metro 1000]
|
[t b b]
| |
[1023 1000( <--assuming arraysize is 1024
| |
| [0(
| /
| /
| /
[line]
|
[tabread array1]

Or it might just be easier to avoid the array altogether with this:

[metro 500]
|
[tgl]
|

• |
  [$1 500(
  |
  [line]

@StraitFire said:

I have been using [line] alot to make sure visuals move smoothly. Are you looking to send a message or bang a message to initiate the change?

[0( [127(
| /
| /
[pack f 500] This will make it ramp to the target over a period of 500 ms
|
|
[line]

I think that construction will work. I will try it here shortly and see if there are more solutions.

-Evan_

I use the midi control object. I can get it to ramp slowly up to 127 value and through a message I can get it to ramp down. But I haven't found away that will automate it. Essentially, when the value reaches 127, I'd like it to trigger the down ramp and devalue to 0, and then at 0 re-trigger the up-ramp--ad naseum. Thanks, for the suggestions, much appreciated.

Here is another way...

http://www.pdpatchrepo.info/hurleur/Continuous_Line.pd

Thank for your patch "ticihan"
very usefull to me

And yet another way of doing it attached

http://www.pdpatchrepo.info/hurleur/up-down-counter.pd