| Re: ENVI trying to open files from USGS/EROS [message #72433] |
Sun, 12 September 2010 21:32 |
David Fanning
Messages: 11724
Registered: August 2001
|
Senior Member |
|
|
Nata writes:
> I will read the documentation more carefully. Do you have an article
> talking about some kind of data from USGS/EROS (GTOPO30, land
> coverage, etc)? Which source if data are you using ?
I don't have any articles. These are just flat binary files.
If you know how many columns and rows (read samples and lines)
and what kind of data you have, these files are read in
about 5 seconds. I've never seen a Data Documentation
page that didn't have this information. (This kind of
information, by the way, is what you put into an ENVI
header file.)
> And, by the way, why you are not in your "pilgrimage" ?
No one warned me that I could get sick on a pilgrimage!
I got some kind of stomach thing that made it, uh,
difficult to travel. It happens. I don't think it was
from drinking bad water, because I was very careful with
that. But, genteel manners are not the norm on the
trail, either. :-)
I'm still taking antibiotics, but I'm mostly recovered,
although still moving slowly and deliberately. It's
harder than I thought to come back to the real world.
> I thought you left the IDL world and you where in some lost part of
> the world...
Yeah, the world is full of surprises. It's a mystery, really.
Apparently I've been using a map where are the trails lead back
to IDL. :-(
Cheers,
David
P.S. Let's just say I've thought of another reason to
learn how to use a GPS receiver. :-)
--
David Fanning, Ph.D.
Fanning Software Consulting, Inc.
Coyote's Guide to IDL Programming: http://www.dfanning.com/
Sepore ma de ni thui. ("Perhaps thou speakest truth.")
|
|
|
|
| Re: ENVI trying to open files from USGS/EROS [message #72434 is a reply to message #72433] |
Sun, 12 September 2010 17:01  |
natha
Messages: 482
Registered: October 2007
|
Senior Member |
|
|
Hey David,
I will read the documentation more carefully. Do you have an article
talking about some kind of data from USGS/EROS (GTOPO30, land
coverage, etc)? Which source if data are you using ?
And, by the way, why you are not in your "pilgrimage" ?
I thought you left the IDL world and you where in some lost part of
the world...
Thanks anyway,
nata
On 12 sep, 14:15, David Fanning <n...@dfanning.com> wrote:
> nata writes:
>> I'm trying to open some *.img files fromhttp://edc2.usgs.gov/glcc/glcc_version1.php#NorthAmerica
>> The problem I have when I try to open those files is that ENVI asks me
>> for a hdr file and I don't know where I can find it.
>> Without the header file, ENVI asks me for the number of bands, lines,
>> etc. and I don't know this information.
>
> I suggest you read the Data Description page a little
> more closely. The information you are looking for is
> found there. :-)
>
> Cheers,
>
> David
>
> --
> David Fanning, Ph.D.
> Fanning Software Consulting, Inc.
> Coyote's Guide to IDL Programming:http://www.dfanning.com/
> Sepore ma de ni thui. ("Perhaps thou speakest truth.")
|
|
|
|
| Re: ENVI trying to open files from USGS/EROS [message #72435 is a reply to message #72434] |
Sun, 12 September 2010 11:15 |
David Fanning
Messages: 11724
Registered: August 2001
|
Senior Member |
|
|
nata writes:
> I'm trying to open some *.img files from http://edc2.usgs.gov/glcc/glcc_version1.php#NorthAmerica
> The problem I have when I try to open those files is that ENVI asks me
> for a hdr file and I don't know where I can find it.
> Without the header file, ENVI asks me for the number of bands, lines,
> etc. and I don't know this information.
I suggest you read the Data Description page a little
more closely. The information you are looking for is
found there. :-)
Cheers,
David
--
David Fanning, Ph.D.
Fanning Software Consulting, Inc.
Coyote's Guide to IDL Programming: http://www.dfanning.com/
Sepore ma de ni thui. ("Perhaps thou speakest truth.")
|
|
|
|
comp.lang.idl-pvwave archive
Members
Search
Help
Login
Home
