comp.lang.idl-pvwave archive: archive » Re: XY position of subscripts

Home » Public Forums » archive » Re: XY position of subscripts

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

Re: XY position of subscripts [message #80182 is a reply to message #80181]

Fri, 11 May 2012 08:36

Mats Löfdahl
Messages: 263
Registered: January 2012

Senior Member

Den fredagen den 11:e maj 2012 kl. 17:14:27 UTC+2 skrev KH:
> Hello,
> I have a quick question I was hoping to get some help with.
>
> Assuming you have a 2D array and then use WHERE to find specific
> subscripts in the array, how can you convert those subscripts into X
> and Y coordinates?
>
> I feel like this is something I should know how to do, but I am
> drawing a blank right now.
> Thanks,
> Kim

Here's an example:

IDL> Ni=10
IDL> Nj=20
IDL> A=bytarr(Ni,Nj)
IDL> A[4,7]=1
IDL> indx=where(A eq 1)
IDL> print,A[indx mod Ni, indx / Ni]
1

Report message to a moderator

[Message index]

		Re: XY position of subscripts By: cgguido on Sun, 13 May 2012 17:09
		Re: XY position of subscripts By: Mats Löfdahl on Fri, 11 May 2012 10:01
		Re: XY position of subscripts By: KH on Fri, 11 May 2012 10:00
		Re: XY position of subscripts By: cgguido on Fri, 11 May 2012 09:56
		Re: XY position of subscripts By: KH on Fri, 11 May 2012 09:02
		Re: XY position of subscripts By: Mats Löfdahl on Fri, 11 May 2012 08:36

Previous Topic:	scalar system variable as single element array
Next Topic:	cgplot and the disappearing white axis

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Wed Dec 03 00:54:23 PST 2025

Total time taken to generate the page: 2.08071 seconds