# Controls for the WXGUI waterfall widget

**URL:** <https://www.ruby-forum.com/t/controls-for-the-wxgui-waterfall-widget/231017>\
**Category:** GNU Radio\
**Created:** [July 17, 2014, 4:06pm UTC](https://www.ruby-forum.com/t/controls-for-the-wxgui-waterfall-widget/231017 "2014-07-17T16:06:28Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![addis\_a](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/c4cdca/32.png) [@addis\_a](https://www.ruby-forum.com/u/addis_a)\
**Post date:** [July 17, 2014, 4:06pm UTC](https://www.ruby-forum.com/t/controls-for-the-wxgui-waterfall-widget/231017/1 "2014-07-17T16:06:28Z")

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**Author:** ![unknown](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/u/4bbf92/32.png) [@unknown](https://www.ruby-forum.com/u/unknown)\
**Post date:** [July 17, 2014, 4:36pm UTC](https://www.ruby-forum.com/t/controls-for-the-wxgui-waterfall-widget/231017/2 "2014-07-17T16:36:55Z")

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On Thu, Jul 17, 2014 at 9:56 AM, [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote:

> actual call and arguments would be.
> 
> Jim

Have you tried the QTGUI waterfall sink? You have a number of color map  
options with that, including “Other” that you can call from the runtime  
menu to allow you to set your own upper and lower intensity colors.

Tom