[SPAM] - Re: [Gdal-dev] Bathymetry data... - Email found in subject

[IMD Listuser]

Thanks for the tip Frank,

I am unfamiliar with the .aux format. How will it help me move the data
to geotiff?

Thanks 


Charlie Van Dusen
charlie at im-design.net

-----Original Message-----
From: gdal-dev-admin at remotesensing.org
[mailto:gdal-dev-admin at remotesensing.org] On Behalf Of Frank Warmerdam
Sent: Thursday, March 25, 2004 10:03 AM
To: gdal-dev at remotesensing.org
Subject: [SPAM] - Re: [Gdal-dev] Bathymetry data... - Email found in
subject

Frank Warmerdam wrote:
> So, I think the easiest thing would just be to write a .aux file for
this.
> Likely something like:
> 
> --- start of topo_8.2.aux ---
> AuxilaryTarget: topo_8.2.img
> RawDefinition: 10800 6336 1
> ChanDefinition-1: 16U 0 2 21600 Unswapped
> --- end of .aux file ---
> 
> I found the projection information kind of confusing, so I didn't try 
> to replicate that.

Folks,

Following up my own post, I found the data is actually signed so you
need to use 16S instead of 16U for the data type.  Also, I added the map
information and it seems to sort of work.  Not sure if it is accurate
though.

AuxilaryTarget: topo_8.2.img
RawDefinition: 10800 6336 1
ChanDefinition-1: 16S 0 2 21600 Unswapped
UpLeftX: 0
UpLeftY: 72.006
LoRightX: 360
LoRightY: -72.006
MapUnits: LAT D000

Best regards,
-- 
---------------------------------------+--------------------------------
---------------------------------------+------
I set the clouds in motion - turn up   | Frank Warmerdam,
warmerdam at pobox.com
light and sound - activate the windows | http://pobox.com/~warmerdam
and watch the world go round - Rush    | Geospatial Programmer for Rent

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