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Problem National Map Viewer

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DaveL

Post subject: Problem National Map Viewer

Posted: 01 Sep 2012 18:04

Joined: 19 May 2011 16:53
Posts: 14
Location: Greenville,CA

[ Admin edit: split from viewtopic.php?f=8&t=20 ]

Hi Phil,

A TIF that I just got from the above source will not load in TDem.
The complaint is it cannot handle 32 bit samples......

Knowing me, I have not done something correctly !!

Dave

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geophil

Post subject: Re: Geo Data - USA

Posted: 01 Sep 2012 19:03

Joined: 05 Jan 2011 16:45
Posts: 1465

Are you opening this .tif as a DEM or as a raster map - and which one is it supposed to be?

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DaveL

Post subject: Re: Geo Data - USA

Posted: 01 Sep 2012 20:56

Joined: 19 May 2011 16:53
Posts: 14
Location: Greenville,CA

Only as a raster map.
I thought I downloaded a GeoTiff.......

Dave

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geophil

Post subject: Re: Geo Data - USA

Posted: 02 Sep 2012 06:51

Joined: 05 Jan 2011 16:45
Posts: 1465

You will usually get this error when you try to open an NED DEM as a raster map. GeoTIFF is legal for both, however, the NED DEM will have a single "colour" band with 32 bit samples which won't make much sense as a raster image.

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DaveL

Post subject: Re: Geo Data - USA

Posted: 02 Sep 2012 17:17

Joined: 19 May 2011 16:53
Posts: 14
Location: Greenville,CA

Thanks Roland,
The file opened as a DEM.

Dave

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