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Re: getting GeoTiff Information [message #72195 is a reply to message #72190]

Mon, 16 August 2010 10:22

penteado
Messages: 866
Registered: February 2018

Senior Member
Administrator

On Aug 16, 2:04 pm, Steve McAlister <s.mcalist...@gmail.com> wrote:
> geotiff keyword from read_tiff will give me projection information in
> structure of GeoTiff like:
>
> MODELPIXELSCALETAG
> DOUBLE Array[3]
> MODELTIEPOINTTAG
> DOUBLE Array[6, 1]
> GTMODELTYPEGEOKEY
> INT 1
> GTRASTERTYPEGEOKEY
> INT 1
> GEOGLINEARUNITSGEOKEY
> INT 9001
> GEOGANGULARUNITSGEOKEY
> INT 9102
> PROJECTEDCSTYPEGEOKEY
> INT 26713
>
> But, I want something more sensible for users to read like:
>
> PCS: 'NAD83 / Massachusetts Mainland'
> Projection: 'SPCS83 Massachusetts Mainland zone (m)'
> MapSys: 'STATE_PLANE_83'
> Zone: 2001
> CTProjection: 'CT_LambertConfConic_2SP'
> ProjParm: [7x1 double]
> ProjParmId: {7x1 cell}
> GCS: 'NAD83'
> Datum: 'North American Datum 1983'
> Ellipsoid: 'GRS 1980'

Yes, the structure uses the numeric codes. Maybe David's geocoord
(http://www.dfanning.com/documents/programs.html#GEOCOORD) can be
useful in translating them into names.

Also, see

http://www.dfanning.com/map_tips/tiffoverlay.html

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[Message index]

		Re: getting GeoTiff Information By: Steve McAlister on Mon, 16 August 2010 13:01
		Re: getting GeoTiff Information By: penteado on Mon, 16 August 2010 10:22
		Re: getting GeoTiff Information By: Steve McAlister on Mon, 16 August 2010 10:04
		Re: getting GeoTiff Information By: penteado on Mon, 16 August 2010 09:47

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