| Re: Help with envi_output_to_external_file [message #71038] |
Tue, 25 May 2010 07:06 |
lorenzo
Messages: 3
Registered: May 2010
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Junior Member |
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> Hi Lorenzo,
>
> out_lib is the problem here. You can't specify the data in this function
> (you could be using writeu directly though). Moreover, you use the fid
> of your original file. I believe you must get a fid for your output (i.e
> have out_lib as an Envi image, loaded in memory), and
> envi_output_to_external_format will convert this data to ascii.
>
> Jean
Hi Jean;
Thanks a lot for the advice. It did the trick! I used
envi_write_envi_file to write a file to memory and then
envi_output_to_external_format to retrieve that file and write it to
to an ASCII file. In the call I used the new file's id and added the
"dims" and "pos" keywords which I had forgotten to include too. I just
have to resize the arrays and do a couple of more things to get it all
right, but I am on my way now.
Lorenzo.
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| Re: Help with envi_output_to_external_file [message #71055 is a reply to message #71038] |
Mon, 24 May 2010 10:10  |
jeanh
Messages: 79
Registered: November 2009
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Member |
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> envi_select, fid=fid, dims=dims, pos=pos
> envi_output_to_external_format, /ascii, out_lib, field=array,
> dims=sub_dims, pos=pos, fid=fid, out_name ="spectra.txt"
Hi Lorenzo,
out_lib is the problem here. You can't specify the data in this function
(you could be using writeu directly though). Moreover, you use the fid
of your original file. I believe you must get a fid for your output (i.e
have out_lib as an Envi image, loaded in memory), and
envi_output_to_external_format will convert this data to ascii.
Jean
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