comp.lang.idl-pvwave archive: archive » polar

Home » Public Forums » archive » polar_contour with log coordinates

Show: Today's Messages :: Show Polls :: Message Navigator
E-mail to friend

polar_contour with log coordinates [message #89688]

Sat, 15 November 2014 07:03

Andrea[1]
Messages: 7
Registered: November 2010

Junior Member

Hi, I'm using polar_contour to plot data from a simulation in spherical coordinates.
I replaced the contour command with cgcontour in polar_contour, so basically and example is

nr = 50; number of radii
nt = 50 ; number of Thetas
; Create a vector of radii:
r = FINDGEN(nr)/(nr-1)
; Create a vector of Thetas:
theta = !PI * fINDGEN(nt)/(nt-1)
; Create some data values to be contoured:
z = COS(theta*3) # (r-0.5)^2
; Create the polar contour plot:
POLAR_CONTOUR, z, theta,r, /cell_FILL, nlevels=10, /win, aspect=0.5

everything is ok, but I would like to have the radial axis in log, since I ahve different order of magnitues in the radius of the real data.
How can I do this?

Report message to a moderator

[Message index]

		polar_contour with log coordinates By: Andrea[1] on Sat, 15 November 2014 07:03
		Re: polar_contour with log coordinates By: David Fanning on Tue, 18 November 2014 09:58

Previous Topic:	cgDrawVectors over map problem?
Next Topic:	CGHISTOPLOT - How to make inward X-axis tick marks?

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Wed Oct 08 16:02:31 PDT 2025

Total time taken to generate the page: 0.00281 seconds