comp.lang.idl-pvwave archive: archive

Home » Public Forums » archive » GeoTiff- grid

Show: Today's Messages :: Show Polls :: Message Navigator
E-mail to friend

Re: GeoTiff- grid [message #58307 is a reply to message #58167]

Thu, 24 January 2008 05:40

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

robinson.inj@gmail.com writes:

> well, my 0.00000000001% was:
> mrcMap=3Dmap_projetion_init('Mercator', DATUM=3D8, /GCTP, $
> SEMIMAJOR_AXIS=3D0, SEMIMINOR_AXIS=3D0, $; porbably datum 8 deals
> with this
> CENTER_LONGITUDE=3D-96.5, TRUE_SCALE_LATITUDE=3D20, $
> FALSE_EASTING=3D0, FALSE_NORTHING=3D0)

Well, now. I think this is a *little* more important than
that!

Of course, I ran into the same problem. There are two
"Mercator" projections available in IDL, and they take
different keywords. Moreover, they give you results that
differ by 20+ degrees of latitude. Aren't you just the
least little bit curious about that? I know I am. :-)

Plus, the one that apparently "works" is the one I can't
get to work from my knowledge of what is in the GeoTiff
file. It seems specialized knowledge has been called into
play here. I'd like to know how I was suppose to discover
that. Anyone have any ideas?

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.")

Report message to a moderator

[Message index]

		GeoTiff- grid By: robinson.inj on Mon, 21 January 2008 13:59
		Re: GeoTiff- grid By: David Fanning on Wed, 23 January 2008 11:00
		Re: GeoTiff- grid By: robinson.inj on Wed, 23 January 2008 23:35
		Re: GeoTiff- grid By: robinson.inj on Wed, 23 January 2008 10:52
		Re: GeoTiff- grid By: David Fanning on Wed, 23 January 2008 07:49
		Re: GeoTiff- grid By: David Fanning on Wed, 23 January 2008 07:29
		Re: GeoTiff- grid By: robinson.inj on Wed, 23 January 2008 07:15
		Re: GeoTiff- grid By: robinson.inj on Wed, 23 January 2008 05:08
		Re: GeoTiff- grid By: David Fanning on Tue, 22 January 2008 15:31
		Re: GeoTiff- grid By: David Fanning on Tue, 22 January 2008 15:17
		Re: GeoTiff- grid By: robinson.inj on Tue, 22 January 2008 15:01
		Re: GeoTiff- grid By: David Fanning on Thu, 24 January 2008 06:48
		Re: GeoTiff- grid By: robinson.inj on Thu, 24 January 2008 06:29
		Re: GeoTiff- grid By: David Fanning on Thu, 24 January 2008 05:40

Previous Topic:	Re: Travel Destination: Holland
Next Topic:	t-testing in IDL

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Sun Oct 12 12:23:36 PDT 2025

Total time taken to generate the page: 1.60092 seconds