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Re: Dynamic GUI problem II.

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  • Subject: [mg89476] Re: Dynamic GUI problem II.
  • From: zac <replicatorzed at>
  • Date: Tue, 10 Jun 2008 03:43:24 -0400 (EDT)
  • References: <g2fub0$2fs$> <g2j0ab$558$>

Thank you for the reply, it partly solves my problem, but what if I
want to control the length of the array 'vars' as well with a slider?
Here is my proposed - not working - layout, based on your code:

Remove[vars, a, x, v, n];
{Slider[Dynamic[n], {1, 5, 1}], Dynamic[n]}
a = Table[RandomReal[], {n}]
vars = Dynamic /@ Array[v, {n}];
x = (Slider[#, ImageSize -> 50] & /@ vars)
MapThread[Set[Evaluate[#1[[1]]], #2] &, {vars, a}];

Clearly the problem starts when variables 'a' and 'vars' do not update
with the change of n. Of course, if I wrap the Table[...] and Array[]
expressions into Dynamics, MapThread won't recognize them as lists. Is
there any way to define 'n' as an always-dynamic-variable (other than
incorporating the whole thing into a Manipulate)?
Any ideas?


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