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MathGroup Archive 1999

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Re: drawing tilted ellipses?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg20504] Re: [mg20412] drawing tilted ellipses?
  • From: Jean-Marie Thomas <jmt at agat.net>
  • Date: Wed, 27 Oct 1999 02:05:02 -0400
  • Organization: TeA
  • References: <199910260433.AAA05881@smc.vnet.net.>
  • Sender: owner-wri-mathgroup at wolfram.com

You could use a polar definition :
r=1/(1+1/2 Cos[theta+Pi/6])

<<Graphics`Graphics`

PolarPlot[r,{theta,0,2 Pi}]

jmt


On Tue, 26 Oct 1999, Joe Strout wrote:
> Is it possible to draw an ellipse in Mathematica that is not orthogonal
> to the XY axes?  E.g., leaning over 30 degrees?
> 
> I thought perhaps I could specify it orthogonally and then apply a
> rotation transformation, but the only transformations available seem to
> be scaling (Scaled) and translation (Offset).
> 
> Of course I could use a series of line segments, but I want this to be
> smooth even when printed on a high-resolution printer.  Any tips?
> 
> Thanks,
> -- Joe
> 
> -- 
> ,------------------------------------------------------------------.
> |    Joseph J. Strout           Biocomputing -- The Salk Institute |
> |    joe at strout.net             http://www.strout.net              |
> `------------------------------------------------------------------'
> Check out the Mac Web Directory!    http://www.strout.net/macweb.cgi


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