Forums > Jitter

list to multislider issue


drewmcm
Apr 02 2014 | 12:05 am

Hi there,

I’m trying to output the list created from tracking in the camera to a multislider. Keep getting an error –
multislider: Slider 0 Out of Range.

also sliders don’t seem to behave as the list should dictate,
Another issue is that the list has numbers up o 254 when the window is only 320×240.

so, a few issues from my novice attempt to translate tracking data into a list and multislider. I want to control the gain controls on a noise filter.

any help appreciated

thanks

drew

Attachments:
  1. colour-track-list.maxpat

Peter Castine
Apr 02 2014 | 10:01 am

The ‘set’ message behaves differently from what you seem to expect. When in doubt, take a look at the Friendly Reference Manual.

The long answer is to send the output from jit.spill straight into the multislider’s left inlet. You can then safely lose the [prepend], [button], and message box. A [t b l] object would have been cleaner than the first two items, anyway.


Fixrobert
Apr 02 2014 | 12:51 pm

use set if you want to setup the value of one slider with a two elements list (index, value).
use a long list (no "set" message prepended) if you want to setup the values of all the sliders in once, multislider considers the list has a list of value, the first element for the first slider, the second element for the second slider and so on.
and also, multislider is counting from 1, not 0.


drewmcm
Apr 02 2014 | 3:07 pm

thanks guys, really appreciate it, didn’t quite understand from help/reference

ta

drew

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