Leo,
The cell values should not change with the Z scale.
I just tried it on examples/Functions_And_Features/3D/Landsat_over_DTM.alg
and it seemed to work correctly. The only things I can think of are that
the the current layer was changed in between swapping view modes, or maybe
something to do with the final transform.
Let me know if I have missed something, and/or you can get it to happen on
the alg quoted above (the water is a good bit to test).
cheers
Mike
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED]]On Behalf Of Leo M. Romeijn
> Sent: Thursday, 26 July 2001 1:35 AM
> To: ER Mapper List Server
> Subject: DEM Z Scale & Elevation incorrect
>
>
> Hi list,
>
> 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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