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Re: Re: Extracting contour values from ContourPlot

• To: mathgroup at smc.vnet.net
• Subject: [mg100834] Re: [mg100808] Re: Extracting contour values from ContourPlot
• From: Syd Geraghty <sydgeraghty at me.com>
• Date: Mon, 15 Jun 2009 05:38:25 -0400 (EDT)
• References: <h12gg4$ect$1@smc.vnet.net> <200906150119.VAA11428@smc.vnet.net>

Hi,

After trying for a while to get the contour line 1  to be shown for  
0<x<~0.5 and 0<y<-0.5 with

ContourPlot[Cos[x*y], {x, -Pi, Pi}, {y, -Pi, Pi}]

It appears ContourPlot has a bug.

(The displayed contour line 1 is not symmetric in the vicinity of x=0,  
y=0)

I wonder if its my system or others noticed this.

I am sending it to Mathematica Bugs for them to confirm.

Cheers ... Syd


Syd Geraghty B.Sc, M.Sc.

sydgeraghty at mac.com

Mathematica 7.0.1 for Mac OS X x86 (64 - bit) (18th February 2009)
MacOS X V 10.5.6
MacBook Pro 2.33 GHz Intel Core 2 Duo  2GB RAM



On Jun 14, 2009, at 6:19 PM, Jens-Peer Kuska wrote:

> Hi,
>
> plt = ContourPlot[Cos[x*y], {x, -Pi, Pi}, {y, -Pi, Pi}];
>
> and
>
> Cases[plt, _Tooltip, Infinity] /. Tooltip[_, lbl_] :> lbl
>
> ?
>
> Regards
>   Jens

• Follow-Ups:
  • Re: Re: Re: Extracting contour values from ContourPlot
    • From: Curtis Osterhoudt <cfo@lanl.gov>

• References:
  • Re: Extracting contour values from ContourPlot
    • From: Jens-Peer Kuska <kuska@informatik.uni-leipzig.de>