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Re: Error when calling ENVI_WRITE_ENVI_FILE [message #86343 is a reply to message #86337]

Mon, 28 October 2013 18:07

Josh Sixsmith
Messages: 13
Registered: December 2012

Junior Member

> What you *really* want is the data tag from each structure:
>
> IDL> help, arrOfStr.data
>
> IDL> print, arrOfStr.data
>
>
>
> -------

Exactly what Phillip has mentioned. Use the tag names to get at the actual data array contained within the structure. The "data" argument to "ENVI_WRITE_ENVI_FILE" is the array itself, not a structure that contains the arrays.

You could pre-allocate an array that will contain all the bands.
eg

red_data = READ_ASCII(redfile, DATA_START = 6, DELIMITER = string(9B))
columns = 4000 ; or whatever it may be
rows = 4000
bands = 7
all_bands = FLTARR(columns, rows, bands)
all_bands[*,*,0] = red_data.data_tag_name ;data_tag_name could be data as in the example provided by Phillip.

and so on for all the necessary bands.

bnames=['1','2','3','4','5','6','7']

Then
ENVI_WRITE_ENVI_FILE, all_bands, bnames=bnames, nb=bands, nl=rows, ns=columns, out_name='my_envi_file'

Hope that helps.

Cheers
Josh

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[Message index]

		Error when calling ENVI_WRITE_ENVI_FILE By: Simon Mitchell on Fri, 25 October 2013 08:35
		Re: Error when calling ENVI_WRITE_ENVI_FILE By: Phillip Bitzer on Fri, 25 October 2013 09:02
		Re: Error when calling ENVI_WRITE_ENVI_FILE By: Josh Sixsmith on Fri, 25 October 2013 14:57
		Re: Error when calling ENVI_WRITE_ENVI_FILE By: Simon Mitchell on Mon, 28 October 2013 08:55
		Re: Error when calling ENVI_WRITE_ENVI_FILE By: Phillip Bitzer on Mon, 28 October 2013 09:34
		Re: Error when calling ENVI_WRITE_ENVI_FILE By: Josh Sixsmith on Mon, 28 October 2013 18:07
		Re: Error when calling ENVI_WRITE_ENVI_FILE By: Simon Mitchell on Fri, 01 November 2013 04:17

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