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VARY

VARY

Name


      VARY

Purpose


      Execute IDL code varying parameters using sliders.

Category


Calling Sequence


      vary

Inputs


Keyword Parameters


Keywords


        /LAST execute last setup if any.

Outputs


Common Blocks


      vary_com

Notes


      Notes: Useful to execute IDL code or a routine using
      a number of parameters with various values. The parameters
      may be given sliders that can vary their values. Also
      up to 5 existing variable may be specified as part of
      the IDL code to execute. The variables and slider
      parameters are indicated in the IDL code text using special
      characters to tag each: variables start with # and
      slider parameters start with $. Example IDL code:
        tv,shift(#img1,$xshift,$yshift),chan=2
      The image in img1 will be shifted by xshift and yshift
      (controlled by 2 sliders) and displayed in the green channel.
      This routine will prompt for the IDL code text and the
      min, max, and default for each slider parameter.
      The IDL code may also be a call to a procedure, so complex
      operations are possible. The entered IDL code will be
      modified: the variables will be replaced with P1, P2, ...
      and the $ tags for the parameters will be dropped when
      the code is displayed in the slider widget.

Modification History


      R. Sterner, 2005 May 13
      R. Sterner, 2005 Jul 11 --- Added /uniq to slider param call.
  Copyright (C) 2005, Johns Hopkins University/Applied Physics Laboratory
  This software may be used, copied, or redistributed as long as it is not
  sold and this copyright notice is reproduced on each copy made. This
  routine is provided as is without any express or implied warranties
  whatsoever. Other limitations apply as described in the file disclaimer.txt.



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