W3C home > Mailing lists > Public > wai-xtech@w3.org > May 2008

Re: rangeslider, a "Tale of Two Thumbs"

From: Chris Blouch <cblouch@aol.com>
Date: Mon, 12 May 2008 16:37:53 -0400
Message-ID: <4828AAA1.6020703@aol.com>
To: David Bolter <david.bolter@utoronto.ca>
CC: wai-xtech@w3.org
Here are screen shots of three and four thumb sliders currently in use 
in Photoshop.


This three thumb slider shows a histogram of the range of colors in a 
photo. Moving the end sliders chops out the dark and light areas while 
the middle thumb shifts the brightness of the overall image lighter or 
darker.


This is a four thumb slider. Like the previous one we can compress the 
range of colors by modifying the end points but this one has two middle 
thumbs which does something magic that as a non-artist I can't really 
describe. Something to do with how many degrees around the color wheel 
the palette is shifted, or something.

CB

David Bolter wrote:
>
> Someone in the #dojo channel (on freenode) asked today about what 
> keystroke interaction to use for a range slider. It seems this widget, 
> a slider with two thumbs, is becoming less rare. Are we looking at 
> keyboard interaction for this beast?
>
> cheers,
> David
>
>
Received on Monday, 12 May 2008 20:38:48 GMT

This archive was generated by hypermail 2.2.0+W3C-0.50 : Friday, 27 April 2012 13:15:49 GMT