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Re: How to programmatically access the Available Band List [message #65957 is a reply to message #65950] Mon, 30 March 2009 11:13 Go to previous message
jeffnettles4870 is currently offline  jeffnettles4870
Messages: 111
Registered: October 2006
Senior Member
On Mar 30, 12:24 pm, Leonardo Sbaraini <leonardo.computa...@gmail.com>
wrote:
> I need to bring up the band list automatically to chose 3 single-band
> images (already loaded) to create a RGB image.
> I tried to use:
>
> - RGB_GET_BANDS  (shows and allow selection but dont have button like
> "Load in a new display")
> - WIDGET_BAND_LIST
>
> The documentation about the WIDGET_BAND_LIST  is very poor, only have
> the parameters:
>
> WIDGET_BAND_LIST base ABL AUTO_MANAGE CONTEXT_EVENTS CONTEXT_ID FID
> FRAME MATCH_FID MAX_YSIZE MULTIPLE NO_SELECT POS PROMPT SCR_XSIZE
> SCR_YSIZE UVALUE XSIZE YSIZE
>
> I was clear about the question?  Someone can help ? Thanks...

I doubt ITTVIS intends for you to mess with the available bands list,
but you should be able to give the user the ability to pick three
images without too much trouble using other widgets. Have you tried
ENVI_SELECT? If nothing else, you could build a list of open images
yourself, make a list widget and let the user select the three from
that list, then display them with ENVI_DISPLAY_BANDS.

Jeff
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