| Re: How to export latlongs? [message #56206] |
Mon, 15 October 2007 10:09 |
envi35@yahoo.ca
Messages: 48
Registered: March 2005
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Member |
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Hi, you use ENVI output ROI as ASCII function to do that. first you
need to highlight all the image area as an ROI.
hope this helps,
Jenny
On Oct 13, 1:57 pm, Julio <ju...@cpa.unicamp.br> wrote:
> Hi there!
>
> I have some geotiff images which are being read into an array using
> read_tiff.
> I would like to export this array to ascii text files, using this
> structure:
>
> latitude, longitude, pixel value
>
> Three columns and 'n' lines, where 'n' is the number of pixels of the
> image. So, for each pixel, I have one line with the coords and the
> pixel value.
>
> I'm trying to do that using ENVI/IDL. That's a very usual problem...
> Does anybody have some code for that?
>
> Thanks,
> Julio
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| Re: How to export latlongs? [message #56220 is a reply to message #56206] |
Sun, 14 October 2007 04:57  |
d.poreh
Messages: 406
Registered: October 2007
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Senior Member |
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On Oct 13, 7:57 pm, Julio <ju...@cpa.unicamp.br> wrote:
> Hi there!
>
> I have some geotiff images which are being read into an array using
> read_tiff.
> I would like to export this array to ascii text files, using this
> structure:
>
> latitude, longitude, pixel value
>
> Three columns and 'n' lines, where 'n' is the number of pixels of the
> image. So, for each pixel, I have one line with the coords and the
> pixel value.
>
> I'm trying to do that using ENVI/IDL. That's a very usual problem...
> Does anybody have some code for that?
>
> Thanks,
> Julio
Hi, julio;
what i am gussing that you should do is using this tool:
*envi_convert_file_coordinates* and finally export your data in .shp
file.
ciao
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