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Re: how to orient Polar Plot 0 Degrees at the North Pole

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  • Subject: [mg128836] Re: how to orient Polar Plot 0 Degrees at the North Pole
  • From: Bob Hanlon <hanlonr357 at gmail.com>
  • Date: Thu, 29 Nov 2012 06:07:07 -0500 (EST)
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  • References: <20121128081614.65AFF6881@smc.vnet.net>

PolarPlot[
 Exp[Cos[t]] - 2 Cos[4 t],
  {t, 0, 2 \[Pi]},
 PolarAxes -> True]

PolarPlot[
 Evaluate[
  (Exp[Cos[t]] - 2 Cos[4 t]) /.
   t -> t - Pi/2],
  {t, 0, 2 \[Pi]},
 PolarAxes -> True,
 PolarTicks -> {
   Table[
    {t, FunctionExpand[Mod[(t - Pi/2), 2 Pi]/Degree]},
    {t, 0, 2 Pi - Pi/12, Pi/12}],
   Automatic}]


Bob Hanlon


On Wed, Nov 28, 2012 at 3:16 AM, mathgroup <fizzymath at knology.net> wrote:
>
> Sometimes I want the 0 Degree  direction of  PolarPlot to be at the
> North Pole......I have been able to do this by applying  Rotate to the
> PolarPlot, e.g....
>
>
> Rotate[PolarPlot[expr...],Pi/2]
>
> but this also Rotates the numbers for the Degrees, etc.  which I
> don't want.....
>
>
> is there another way ?....I looked at the Options to see if there was
> one which allowed you to do this but, if there is such an Option, I
> didn't see it....
>
>
> Thanks.....Jerry Blimbaum
>
>



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