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MathGroup Archive 2004

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Re: ParametricPlot2D

  • To: mathgroup at smc.vnet.net
  • Subject: [mg46816] Re: ParametricPlot2D
  • From: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
  • Date: Tue, 9 Mar 2004 04:31:02 -0500 (EST)
  • Organization: Universitaet Leipzig
  • References: <c2hdui$agv$1@smc.vnet.net>
  • Reply-to: kuska at informatik.uni-leipzig.de
  • Sender: owner-wri-mathgroup at wolfram.com

Hi,


pp = ParametricPlot3D[{u - v^2, u v, 0}, {u, -1, 1}, {v, -1, 1}, 
    ViewPoint -> {0, 0, 4}];

Show[Graphics[
    pp[[1]] /. {x_?NumericQ, y_?NumericQ, _} :> {x, y} /. 
      Polygon[pnts_] :> Line[Append[pnts, First[pnts]]]]]

Regards
  Jens

"Narasimham G.L." wrote:
> 
> Is it possible to plot like :)  ParametricPlot2D {x,y}=f(u,v), where
> u,v are two parameters? At present, I am plotting by setting z=0 in a
> 3D plot e.g.,
> ParametricPlot3D[{u-v^2,u v,0},{u,-1,1},{v,-1,1},ViewPoint->{0,0,4}] ;
> But it adds colour to the domain that would have become a surface in
> 3D had z been non-zero. Actually I like to see clean plots, no matter
> if there are self-intersections.What is the simplest plot command
> recommended in such cases?


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