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Programming > IDL > envi: reading v...
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envi: reading vector attribute table

by "Jelle Ferwerda" <jelle.ferwerda@[EMAIL PROTECTED] > Mar 30, 2007 at 02:45 AM

Hi All,

ENVI got me a bit surprised here..

I have a stack of locations in a shp file, which I converted to EVF
for convenience. When in IDL I try to read those points, using the
ENVI functions can easily acces the locations; say for the second
position:

 file = 'D:\_current_projects\SEARS\datasets\elephants_mali\evf
\all_utm_wgs84_.evf'
 vectors = envi_evf_open(file)
 record = envi_evf_read_record(vectors, 2)

However, these positions have a timestamp as well. This is stored in
the attribute table 'D:\_current_projects\SEARS\datasets\elephants_mali
\evf\all_utm_wgs84_.dbf'.
How do I retrieve that information? I cannot find any ENVI or IDL
commands that let me read it, although it must be there, as the ENVI
vector plot gives me the information.

I could use either the .shp or the .evf files as a source; ideally I
do the whole thing in IDL, but as I have ENVI using that is no problem
either.

Thanks guys,

Jelle.
 




 1 Posts in Topic:
envi: reading vector attribute table
"Jelle Ferwerda"  2007-03-30 02:45:14 

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