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Re: getting GeoTiff Information [message #72190]

Mon, 16 August 2010 13:01

Steve McAlister
Messages: 3
Registered: August 2010

Junior Member

On Aug 16, 11:22 am, Paulo Penteado <pp.pente...@gmail.com> wrote:
> 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

Thank you Paul! David's code was very helpful.

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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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