js-object timing issue


    Nov 29 2011 | 2:40 pm
    hey list,
    i just made a js script, wich does a pretty simple thing:
    creating a ramp from 0 to n-1 with a delay(ms) after each
    increment. (of course something similar is already done as
    max externals, but for now i like to understand and recap things with scripting)
    when adjusting a very small ms delay value (as argument of the js object)
    i get irregular output of js object. it ramps, but not to the
    expected value (n-1). in the appended patch i like to ramp to the value 1999. with 20ms everthing working fine, but the smaller the interval gets the bigger the difference between n-1 and the outputs gets. for example:
    each time i ramp with 2 ms it stop at different vals. 1976, 1997 etc.
    why is it?
    is this because the js stuff is executed at low priority at the max sheduler?
    i also looked for an alternative to the "task"-way,
    but settimeout does not seem to work within the js object…
    any workarround within javascript?
    here is the patch and i append the javascript file:
    BTW. iam on a macbook 10.6.8 with max 5.1.9.
    thanks for your help,
    greetings.
    johannes

    • Nov 29 2011 | 5:09 pm
      thanks vanille,
      "rep.immediate = 1;" fixed it. i made a test where i count from 0 to 1.000.000 with 2 ms delay and it absolutly matches!
      nice,
      j
    • Apr 06 2015 | 4:12 pm
      I don't suppose you have the solution to this that you're willing to share.
      I've got a similar problem with the timing issue where I want to subtract one from a number every three milliseconds.
      Can you help me out please?