If your data values for your negative strand values are actually negative
below zero, use the altColor setting to define the color for negative values.
See also:  http://genome.ucsc.edu/goldenPath/help/wiggle.html

--Hiram

Minho Chae wrote:
> Hello,
> 
> I cannot control the color of bigWig files by using "color" parameter
> in the track line.
> I used the following:
> 
> track type=bigWig name="E2_0m+" db=hg18 visibility=2
> windowingFunction=maximum viewLimits=0:100 autoScale=off color=255,0,0
> bigDataUrl=http://server/data/E20m_Plus.bw
> track type=bigWig name="E2_0m-" db=hg18 visibility=2
> windowingFunction=maximum viewLimits=-100:0 autoScale=off
> color=0,0,255 bigDataUrl=http://server/data/E20m_Minus.bw
> 
> The plus strand (first line) is perfectly fine showing red color
> according to the RGB value of 255,0,0
> But for the minus strand (second line) does not show blue rather it
> shows paled blue.
> I tried with other colors, but all the colors I used for the minus
> strand I am getting tone-down version of color.
> How can I display proper colors for the minus strand?
> 
> I would very appreciate any help regarding this problem.
> 
> Thank you.
> 
> Minho Chae
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