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MathGroup Archive 2008

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How to preserve a slider setting between notebook sessions?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg89671] How to preserve a slider setting between notebook sessions?
  • From: Hannes Kessler <HannesKessler at hushmail.com>
  • Date: Tue, 17 Jun 2008 00:38:33 -0400 (EDT)

Hello,

is it possible to preserve the value of a global dynamic variable in a
slider between different notebook sessions?

At the beginning of a notebook, I have some sliders (or other elements
as popup menues etc.) for quick modifications of the dynamic variables
to be used further in the notebook calculations. However, the slider
settings are always lost between different notebook sessions which is
inconvenient.
Embedding the slider in a DynamicModule preserves the seetting between
different sessions, but then,  the dynamic slider variables cannot be
referenced outside the dynamic module.

Here are 2 examples:
{Slider[Dynamic[t1]], Dynamic[t1]} --> slider position is lost between
sessions
DynamicModule[{t2}, {Slider[Dynamic[t2]], Dynamic[t2]}]  --> slider
variable cannot be used in the notebook outside the dynamic module

Best regards,
Hannes Kessler


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