Aqeel,
Put your DEM in Height layers on the same surface as your Image layers. In
the Algorithm window, hit 3D perspective in the View Mode pull down bar. Use
Cell Coordinate, under the View menu, and the pointer tool to see elevation
values from picking on the 3D view.
Leo M. Romeijn
Geodetic Positioning Service, Inc.
Woodland, WA, USA 98674
(360) 225-0625 ~ (360) 225-0833 (Fax)
[EMAIL PROTECTED]
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On
Behalf Of Aqeel Kidwai
Sent: Tuesday, July 31, 2001 2:57 PM
To: [EMAIL PROTECTED]
Subject: Re: DEM Z Scale
Hello list,
Why my DEM does not show elevation? I can't see a 3D perspective view
Aqeel
----- Original Message -----
From: "Leo M. Romeijn" <[EMAIL PROTECTED]>
To: "ER Mapper List Server" <[EMAIL PROTECTED]>
Sent: Monday, July 30, 2001 3:02 PM
Subject: DEM Z Scale & Elevation incorrect
> List,
>
> I believe this got moved off of the list. I am sending it back to share
the
> fix, just in case anyone else runs into this problem.
>
>
>
> Yes!!! That did it. The elevations are now properly shown on the cell
> coordinate display in 3D perspective.
>
> Thanks!!!
>
> Leo M. Romeijn
> Geodetic Positioning Service, Inc.
> Woodland, WA, USA 98674
> (360) 225-0625 ~ (360) 225-0833 (Fax)
> [EMAIL PROTECTED]
>
> -----Original Message-----
> From: david.carter [mailto:[EMAIL PROTECTED]]
> Sent: Sunday, July 29, 2001 9:00 PM
> To: [EMAIL PROTECTED]
> Cc: beta
> Subject: RE: DEM Z Scale & Elevation incorrect
>
> Hi Leo,
>
> Have you tried deleting the transform on your height layer? If a
transform
> is applied to the height layer, this will affect the "Terrain Height"
value
> reported in the "Cell Coordinates" window, but will not affect the z
values
> displayed in the "Cell Values Profile" window. If this doesn't help you,
> could you please send us the data illustrating the problem, and also your
> machine configuration report. You can obtain your machine configuration
> report from the ER Mapper main menu:
>
> "Utilities -> Machine Configuration Report"
>
> Thanks,
>
> David Carter
> QA Officer - ER Mapper
> Earth Resource Mapping
>
> Introducing Raster and Vector Integration
> Image Web Server 1.6 Released
> www.EarthEtc.com
> ===========================================================
> Original Question:
>
> I have a DEM with Landsat TM 7 draped over the top. Both Files
are
> .ers (raster data files). When I go to 3D Perspective view the Z Scale (%)
> is at 7291, which makes the 3D image look like spikes. I change the Z
Scale
> (%) to 300, which makes it looks more realistic. When I use the Cell
> Coordinate command to check elevation values, the values are low +/- 500
> meters. When I check the cell values in the normal view mode the
elevations
> are correct. Does anyone know why this is happening?
>
> Thanks,
>
> Leo M. Romeijn
> Geodetic Positioning Service, Inc.
> Woodland, WA, USA 98674
> (360) 225-0625 ~ (360) 225-0833 (Fax)
> [EMAIL PROTECTED]
>
>
>
>
>
>
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