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Re: Selecting data from two separate arrays [message #71512 is a reply to message #71511]

Mon, 21 June 2010 13:33

MarioIncandenza
Messages: 231
Registered: February 2005

Senior Member

On Jun 21, 12:57 pm, Fster <francis.colle...@live.co.uk> wrote:
> Would it be easier to combine them into one array? The issue is that
> one array is on the x and y axis, and the other is on x, y, z axis,
> BUT the x and y axis are the same for each of the arrays and equal
> number of grid points...

So, you want to select points from the XY array, and the extract the
corresponding data from the XYZ array, right?

There are quite a few ways to do this. Here's a simple one, not the
fastest, but the simplest code-wise:

DATA2 = <XY data>
DATA3= <XYZ data>
;Get size of Z dimension
NZ=(size(DATA3))[3]
; pick points from the XY data
F2 = WHERE(DATA2 ge VALUE,NF2)
; set up an array to hold the extracted 3D data
DATA3_EXTRACT = FLTARR(NF2,NZ)
; load the data into the array
for IZ=0l,NZ-1 do DATA3_EXTRACT[*,IZ]=(DATA3[*,*,IZ])[F2]

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[Message index]

		Re: Selecting data from two separate arrays By: Fster on Tue, 22 June 2010 03:20
		Re: Selecting data from two separate arrays By: Fster on Tue, 22 June 2010 02:21
		Re: Selecting data from two separate arrays By: MarioIncandenza on Mon, 21 June 2010 16:35
		Re: Selecting data from two separate arrays By: Fster on Mon, 21 June 2010 13:50
		Re: Selecting data from two separate arrays By: MarioIncandenza on Mon, 21 June 2010 13:33

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