How do I find the rgb values for colors defined by their name: e.g. blue, green, yellow etc.
Peter Haworth
pete at lcsql.com
Tue Dec 10 17:25:46 EST 2013
Whoops, really? I read it the other way round. Which was it Jim?
Pete
lcSQL Software <http://www.lcsql.com>
On Tue, Dec 10, 2013 at 1:42 PM, J. Landman Gay <jacque at hyperactivesw.com>wrote:
> On 12/10/13 3:09 PM, Jan Schenkel wrote:
>
>>
>> There's an even faster method, based on the fact that the graphic effects
>> always convert colour names to rob triplets.
>> See: <http://quality.runrev.com/show_bug.cgi?id=10253>
>>
>> Here's a script to compare the average speed of the colorOverlay["color"]
>> method versus the effective backPixel method:
>> ##
>> on mouseUp
>> local tColorName, tColorRGB1, tColorRGB2, tStart, tTime1, tTime2
>> repeat for each line tColorName in the colorNames
>> put the milliseconds into tStart
>> set the colorOverlay["color"] of the templateGraphic to tColorName
>> put the colorOverlay["color"] of the templateGraphic into
>> tColorRGB1
>> put the milliseconds - tStart & comma after tTime1
>> put the milliseconds into tStart
>> set the backgroundColor of the templateGraphic to tColorName
>> set the backgroundPixel of the templateGraphic to the effective
>> backgroundPixel of the templateGraphic
>> put the backgroundColor of the templateGraphic into tColorRGB2
>> put the milliseconds - tStart & comma after tTime2
>> end repeat
>> delete char -1 of tTime1
>> delete char -1 of tTime2
>> --
>> answer "colorOverlay[color]" && average(tTime1) & return & \
>> "backgroundPixel" && average(tTime2)
>> end mouseUp
>> ##
>>
>
> These are great scripts, they're going into my scrapbook.
>
> The original question though was how to convert an RGB value to the
> nearest colorname. I don't think you can.
>
> --
> Jacqueline Landman Gay | jacque at hyperactivesw.com
> HyperActive Software | http://www.hyperactivesw.com
>
>
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