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Re: Mathematica 7: PieChart: opacity of a sector label?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg93916] Re: [mg93878] Mathematica 7: PieChart: opacity of a sector label?
  • From: Syd Geraghty <sydgeraghty at me.com>
  • Date: Fri, 28 Nov 2008 05:10:09 -0500 (EST)
  • References: <200811271034.FAA08900@smc.vnet.net>

Hi Gordon,

No luck after 20 minutes of deciphering options.

I thought maybe Style would override as in:-

Style[m1, {Bold, Black}]

But no luck.

Looks like the label style is linked to the sector.

The only positive suggestion is to use a different color function that  
gives the soft colours you desire.

Cheers ... Syd


Syd Geraghty B.Sc, M.Sc.

sydgeraghty at mac.com

Mathematica 7.0.0 for Mac OS X x86 (64 - bit) (21st November, 2008)
MacOS X V 10.5.4
MacBook Pro 2.33 Ghz Intel Core 2 Duo  2GB RAM









On Nov 27, 2008, at 2:34 AM, Gordon Robertson wrote:

> Could I ask for help with the following? In Mathematica 6, a  
> sector's label was
> automatically dark (very readable) text, independent of the  
> Opacity[] of its
> sector. In Mathematica 7, at this point I'm finding that a pie  
> sector's label has the
> opacity of its sector. For example, the following has a pale blue  
> sector
> with an 'm1' label -- but both the blue and the label have an  
> opacity of
> 0.5. Putting Opacity[1] into the BaseStyle Directive does not change  
> this.
>
> PieChart[{0.3, 1 - 0.3},
>
> ChartLabels -> Placed[{m1, ""}, "RadialCallout"],
>
> ChartStyle -> {
>  Directive[Darker[Blue], Opacity[0.5]],
>  Directive[Gray, Opacity[0.2]]},
>
> BaseStyle -> Directive[FontFamily -> "Helvetica", 12],
> ImageSize -> 200]
>
> I've studied the PieChart help documentation for some time without  
> finding a
> way to declare the label as opaque i.e. dark. I'm probably simply  
> not seeing
> what I need to see.
>
> Thanks in advance for your help. I'm on an Intel Mac with OS X 10.5.5.
>
> G
> -- 
> Gordon Robertson
> Gene Regulation Informatics
> Canada's Michael Smith Genome Sciences Centre
> Vancouver BC Canada
> www.bcgsc.ca
>
>
>



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