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Re: shifted .kml created with IDL [message #81046 is a reply to message #80955]

Tue, 31 July 2012 00:09

titan
Messages: 59
Registered: March 2006

Member

On Monday, July 30, 2012 4:23:18 PM UTC+2, titan wrote:
> On Monday, July 30, 2012 3:13:24 PM UTC+2, David Fanning wrote:
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>> David Fanning writes:
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>>> I haven't made KML files, but when I work with Google Maps,
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>>> they always come back in a Mercator projection. I presume
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>>> that is what they are using.
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>> To navigate the Google Static Maps that I get from Google,
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>> I use a Mercator projection with a WGS84 datum:
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>> mapCoord = Obj_New('cgMap', 105, Datum=8)
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>> Cheers,
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>> David
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>> --
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>> David Fanning, Ph.D.
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>> Fanning Software Consulting, Inc.
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>> Coyote's Guide to IDL Programming: http://www.idlcoyote.com/
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>> Sepore ma de ni thui. ("Perhaps thou speakest truth.")
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> Thanks a lot David,
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> Tomorrow I will try using it as structure in the MAP_PROJ_INVERSE function and I will let you know as soon as possible
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> cheers

Hi David,
unfortunately it does not work or probably I'm still missing something :(
Using the following code I get coordinates that are pointing to an area near Corsica!!

mapCoord_Google_earth = MAP_PROJ_INIT('Mercator', Datum=8)
lonlat_Google_Earth = MAP_PROJ_INVERSE([xLL,yLL,xUR,yUR], MAP_STRUCTURE=mapCoord_Google_earth)

lon_range_Google_Earth=[lonlat_Google_Earth[0,0],lonlat_Goog le_Earth[0,1]]
lat_range_Google_Earth=[lonlat_Google_Earth[1,0],lonlat_Goog le_Earth[1,1]]

UL_lat_Google_Earth=lonlat_Google_Earth[1,1]
UL_lon_Google_Earth=lonlat_Google_Earth[0,0]

LR_lat_Google_Earth=lonlat_Google_Earth[1,0]
LR_lon_Google_Earth=lonlat_Google_Earth[0,1]

print ,'UL_lat_Google_Earth',UL_lat_Google_Earth
print ,'UL_lon_Google_Earth',UL_lon_Google_Earth
print ,'LR_lat_Google_Earth',LR_lat_Google_Earth
print ,'LR_lon_Google_Earth',LR_lon_Google_Earth

UL_lat_Google_Earth 47.512672
UL_lon_Google_Earth 4.4728665
LR_lat_Google_Earth 45.054882
LR_lon_Google_Earth 7.7499209

What I'm doing wrong?!?

thanks

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[Message index]

		shifted .kml created with IDL By: titan on Mon, 30 July 2012 05:25
		Re: shifted .kml created with IDL By: titan on Fri, 03 August 2012 06:21
		Re: shifted .kml created with IDL By: David Fanning on Thu, 02 August 2012 14:33
		Re: shifted .kml created with IDL By: titan on Thu, 02 August 2012 00:00
		Re: shifted .kml created with IDL By: David Fanning on Tue, 31 July 2012 09:36
		Re: shifted .kml created with IDL By: David Fanning on Tue, 31 July 2012 09:30
		Re: shifted .kml created with IDL By: titan on Tue, 31 July 2012 07:51
		Re: shifted .kml created with IDL By: David Fanning on Tue, 31 July 2012 04:56
		Re: shifted .kml created with IDL By: titan on Tue, 31 July 2012 00:09

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