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Re: ColorData etc.

  • To: mathgroup at smc.vnet.net
  • Subject: [mg82313] Re: ColorData etc.
  • From: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
  • Date: Wed, 17 Oct 2007 04:07:54 -0400 (EDT)
  • References: <ff1pie$8t7$1@smc.vnet.net>

Hi,

I'm not sure if I understand what you want but

Graphics[With[{h = 0.01},
   Table[{Hue[x], Tooltip[Rectangle[{x, 0}, {x + h, 1}], x]}, {x, 0, 1,
      h}]
   ], AspectRatio -> 0.125, Frame -> True,
  FrameTicks -> {Automatic, None}
  ]

May help to make a legend.

Regards
   Jens

P_ter wrote:
> Hello,
> I am not clear how ColorData etc. works.
> Now I color an interval according to its integer length.
> I would like to make a legend for that.
> No idea how to do that.
> My format of each element of a list is: Hue[(55-53)/max], Line[{{53, 4}, {55, 4}}]
> In this case max = 5 for the whole list.
> It means that a horizontal line is drawn with Hue[2/5] from {53,4} to {55,4}
> I would like to make a legend of the colors. There are in this case only 5 colors. Hue[1] corresponds to 5, Hue[4/5] corresponds to 4 etc.
> The examples in the documentation do not help me. I am sorry to say that because there are many examples. 
> My general question is that I would like to place at each line the length of that line as a number, just above it.
> Or by clicking on the line, getting such a number.
> I am lost at this. Can anyone help here? Maybe there is no need for the explicit Hue in this case and all could be done with just a list of Lines. No idea.
> But all the examples in the documentation do not fit to my problem. I apologize for my question: I am not clear how ColorData etc. works.
> with friendly greetings,
> P_ter
> 


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