Re: Building lists
- To: mathgroup at smc.vnet.net
- Subject: [mg22328] Re: Building lists
- From: Brian Higgins <bghiggins at ucdavis.edu>
- Date: Fri, 25 Feb 2000 21:13:17 -0500 (EST)
- References: <892pmg$pkl@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
In article <892pmg$pkl at smc.vnet.net>,
"Tom De Vries" <tdevries at shop.westworld.ca> wrote:
> Hello,
>
> The graphics command below builds a simple bull's eye. (I used it for
a
> probability question in my math class) It does what I want it to, but
with
> all the repetition I know that it is probably possible to do it more
simply.
> It isn't so long but I figured I could learn something by seeing how
this
> command could be duplicated in different ways. I was looking at
Thread but
> couldn't quite manage to get things to work out. The specific colors
> aren't really important, but I did want to get each disk to be a
different
> color.
>
> Thanks for any suggestions you might have.
>
> Sincerely,
>
> Tom De Vries
>
> Needs["Graphics`Colors`"]
>
> Show[Graphics[{
>
> {Blue, Disk[{0, 0}, 200]},
> {Red, Disk[{0, 0}, 180]},
> {Purple, Disk[{0, 0}, 160]},
> {Plum, Disk[{0, 0}, 140]},
> {Gold, Disk[{0, 0}, 120]},
> {Olive, Disk[{0, 0}, 100]},
> {Pink, Disk[{0, 0}, 80]},
> {Navy, Disk[{0, 0}, 60]},
> {Mint, Disk[{0, 0}, 40]},
> {Black, Disk[{0, 0}, 20]}
>
> }], AspectRatio -> Automatic, PlotRange -> All,
> DefaultFont -> {"Times", 18}];
>
>Tom, Here is a possibility based on defining a color function for the
bull's eye:
Needs["Graphics`Colors`"]
colfunc = {Blue, Red, Purple, Plum, Gold, Olive , Pink, Navy, Mint,
Black}
Show[Graphics[
Map[{_#, Disk[{0, 0}, #]} &, Reverse[Range[20, 200, 20]]] /.
Thread[ _ Reverse[Range[20, 200, 20]] -> colfunc],
AspectRatio -> Automatic, PlotRange -> All, DefaultFont ->
{"Times", 18}]];
Brian
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