Mathematica 9 is now available
Services & Resources / Wolfram Forums
-----
 /
MathGroup Archive
2004
*January
*February
*March
*April
*May
*June
*July
*August
*September
*October
*November
*December
*Archive Index
*Ask about this page
*Print this page
*Give us feedback
*Sign up for the Wolfram Insider

MathGroup Archive 2004

[Date Index] [Thread Index] [Author Index]

Search the Archive

Re: Plotting a contour plot with cylindrical co-ordinates

  • To: mathgroup at smc.vnet.net
  • Subject: [mg50182] Re: Plotting a contour plot with cylindrical co-ordinates
  • From: mathma18 at hotmail.com ("G.L.Narasimham")
  • Date: Thu, 19 Aug 2004 06:28:14 -0400 (EDT)
  • References: <rrncfuxz67c5@legacy>
  • Sender: owner-wri-mathgroup at wolfram.com

If z=f(r,theta) is given, convert (r,theta) -> (x,y).  For example:
z[r_,theta_]= Sec[r*3]*(2*theta-1); x= r*Cos[theta];y=r*Sin[theta] 
ParametricPlot3D [{x,y,z[r,theta]},{r,1,6},{theta,0,6},
PlotPoints->{15,21}]

On 20 Jul 04 14:45:29 -0400 (EDT), Jake wrote:
>I have a set of data which corresponds to points on a circle. I have
>these values as a function of r and theta. Is there a way of plotting
>this in Mathematica? The ContourPlot function requires x and y
>co-ordinates.
>Please help if you know.
>thanks.


  • Prev by Date: GUIKit FileDialog Widget
  • Next by Date: Re: Simplify stuck in simple expression
  • Previous by thread: Re: GUIKit FileDialog Widget
  • Next by thread: Re: Plotting a contour plot with cylindrical co-ordinates