comp.lang.idl-pvwave archive: archive

Home » Public Forums » archive » PLOT3D format input

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

Re: PLOT3D format input [message #90622 is a reply to message #90621]

Tue, 17 March 2015 20:17

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

Matthew Argall writes:

>
>> t=FINDGEN(5,200)
>> x = t(1,*)
>> y = t(2,*)
>> z = t(3,*)
>>
>> p = PLOT3D(x, y, z,'o')
>
>
> I have found that function graphics are particularly picky about whether you pass them a column vector or row vector. Problems arise when you pass data in as a row vector (a 1xN array, as you are doing above). The solution is to reform your data into a column vector (Nx1 array), like so
>
> x = reform(t[1,*])
> y = reform(t[2,*])
> z = reform(t[3,*])
>
> p = plot3d(x, y, z, 'o')

Actually, visa versa, but we get the idea. :-)

x = t[1,*] is a column vector.
y = Reform(t[2,*]) is a row vector.

Cheers,

David

--
David Fanning, Ph.D.
Fanning Software Consulting, Inc.
Coyote's Guide to IDL Programming: http://www.idlcoyote.com/
Sepore ma de ni thue. ("Perhaps thou speakest truth.")

Report message to a moderator

[Message index]

		PLOT3D format input By: lucesmm on Tue, 17 March 2015 18:04
		Re: PLOT3D format input By: Matthew Argall on Tue, 17 March 2015 19:49
		Re: PLOT3D format input By: David Fanning on Tue, 17 March 2015 20:17
		Re: PLOT3D format input By: Matthew Argall on Wed, 18 March 2015 06:11
		Re: PLOT3D format input By: Paul Van Delst[1] on Wed, 18 March 2015 12:38
		Re: PLOT3D format input By: lucesmm on Thu, 19 March 2015 16:24

Previous Topic:	ring in fg graphics
Next Topic:	IDL Array Indices Command

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Wed Oct 08 13:36:46 PDT 2025

Total time taken to generate the page: 0.00374 seconds