| Re: IDL with SRTM/hgt data [message #40516] |
Fri, 13 August 2004 19:19 |
David Fanning
Messages: 11724
Registered: August 2001
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Senior Member |
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Nuno Gil writes:
> When trying to display the image using "TV" is is displayed flipped,
> only when using the keywork /ORDER I have it right. I thought this was
> because of the 0,0 pixel convention in hgt (LL pixel), but the
> ORIENTATION keywork in the "read_tiff" instruction is 1.
I've never known the ORIENTATION keyword in TIFF files
to make a damn bit of difference. Either use the ORDER
keyword, or rotate the image (what I do, generally,
since then user interaction with the image makes a LOT
more sense to me!):
newimage = Rotate(image, 7)
> I would also like to display an elevation model (surface) dereived
> directly from the image, it is a 2 D array. I'm trying to use
> "SURFACE" and "SHADE_SURF" but no progress. Any help?
No progress in what way?
Cheers,
David
--
David Fanning, Ph.D.
Fanning Software Consulting, Inc.
Coyote's Guide to IDL Programming: http://www.dfanning.com/
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