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Re: Symbols using Prolog

  • To: mathgroup at smc.vnet.net
  • Subject: [mg33695] Re: Symbols using Prolog
  • From: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
  • Date: Tue, 9 Apr 2002 01:01:56 -0400 (EDT)
  • Organization: Universitaet Leipzig
  • References: <a8m2rl$oa4$1@smc.vnet.net>
  • Reply-to: kuska at informatik.uni-leipzig.de
  • Sender: owner-wri-mathgroup at wolfram.com

Hi,

you can't replace the Point[] primitive in ListPlot[]
by the prolog option. You can hook Point[] with

Block[{Point},
  Point[a_] := Text["\[EmptyCircle]", a];
  ListPlot[data]
  ]


or replace it later

gr = ListPlot[data, DisplayFunction -> Identity] /. 
      Point[a_] :> Text["\[EmptyCircle]", a];
Show[gr, DisplayFunction -> $DisplayFunction]

You can use the Prolog in Plot[]

Plot[Sin[x],{x,0,2Pi},Prolog->{Text["\[EmptyCircle]", #] & /data}]

Regards
  Jens

David Robinson wrote:
> 
> Excuse a question from a beginner.
> 
> There has been some discussion about using graphics primatives to show
> symbols on plots.  However, it wasn't clear from the discussion how to
> change the symbol using the Prolog option within, for example ListPlot.
> 
> ListPlot[list , PlotRange->{0.,1.0} , AxesOrigin->{0,0.0} ,
> Prolog->{.....?....}]
> 
> Any one have any insights out there?
> 
> Dave Robinson
> 
> --
> 
> -------------------------------------------------------------------------------
> 
> Prediction is very difficult, especially about the future.
>                                                    -- Neils Bohr


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