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Re: [Q] How does one EXPAND an ARRAY in IDL ? i.e opposite of sub-array [message #3500 is a reply to message #3419]

Thu, 26 January 1995 10:15

velt
Messages: 19
Registered: June 1994

Junior Member

In article <1995Jan25.181418.25048@ptolemy-ethernet.arc.nasa.gov>, mombasa@kronos.arc.nasa.gov (Tarang Kumar Patel) writes:

>
> I am dealing with an ARRAY of structures, but the question applies to all
> arrays. I know one can take subarrays to shrink an array, but how about if one
> wants to extend the size of one how does one achive this.

The basic expansion:

mydata = [mydata, newstructure]

adds one element to the array mydata.

For general expansions you can always use temporary variables.
For example, for a 2-dimensional array of integers:

tmp = intarr( newx, newy)
tmp( 0, 0)= mydata
mydata = tmp

(You may want to clean up tmp afterwards)

Robert Velthuizen (velt@rad.usf.edu),
Digital Medical Imaging Program of the
H. Lee Moffitt Cancer Center and Research Institute at the
University of South Florida, Tampa FL 33612.

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		[Q] How does one EXPAND an ARRAY in IDL ? i.e opposite of sub-array By: mombasa on Wed, 25 January 1995 10:14
		Re: [Q] How does one EXPAND an ARRAY in IDL ? i.e opposite of sub-array By: velt on Thu, 26 January 1995 10:15

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