comp.lang.idl-pvwave archive: archive » Re: Map to data coordinate conversion

Home » Public Forums » archive » Re: Map to data coordinate conversion

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

Re: Map to data coordinate conversion [message #84034 is a reply to message #83925]

Mon, 22 April 2013 05:20

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

Fabien writes:

>
> On 04/18/2013 05:12 PM, Chris Torrence wrote:
>> i = image(FILEPATH('boulder.tif',SUBDIR=['examples','data']))
>> print, i.mapforward(-105,40)
>
> Wait. Does that mean that IDL now supports geotiff projections?
>
> How do I get the Geotiff projection parameters without image() ?
> Can I get a map structure?
>
> Something like:
> g = geotiff(FILEPATH('boulder.tif',SUBDIR=['examples','data']))
>
> map = g->getMap()
> truelat = g->getTrueLat()
>
> etc.
>
> ???

Something like this has been available with cgImage for quite some time,
too.

IDL> file = 'AF03sep15b.n16-VIg.tif'
IDL> cgImage, Filename=file, MapCoord=map
IDL> Help, map
MAP OBJREF = <ObjHeapVar11(CGMAP)>

Cheers,

David
--
David Fanning, Ph.D.
Fanning Software Consulting, Inc.
Coyote's Guide to IDL Programming: http://www.idlcoyote.com/
Sepore ma de ni thue. ("Perhaps thou speakest truth.")

Report message to a moderator

[Message index]

		Re: Map to data coordinate conversion By: PMan on Thu, 18 April 2013 08:27
		Re: Map to data coordinate conversion By: Fabzi on Thu, 18 April 2013 08:20
		Re: Map to data coordinate conversion By: PMan on Thu, 18 April 2013 08:15
		Re: Map to data coordinate conversion By: chris_torrence@NOSPAM on Thu, 18 April 2013 08:12
		Re: Map to data coordinate conversion By: David Fanning on Thu, 18 April 2013 07:40
		Re: Map to data coordinate conversion By: David Fanning on Mon, 22 April 2013 05:20
		Re: Map to data coordinate conversion By: chris_torrence@NOSPAM on Fri, 19 April 2013 16:06

Previous Topic:	I need to bulid a digital phantom urgently, Thanks for help!
Next Topic:	How to use IDL routines to estimate entropy

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Fri Oct 10 22:53:19 PDT 2025

Total time taken to generate the page: 0.55904 seconds