Hi,
I think what you are seeing can be explained by the following -
It depends on the xy extents of the dataset.
If the xy ranges dimensions are (for example) 10x10 at 1meter,
and the z range is 0-10, then a z-scale of 1 will give a
proportionate ("equilateral") view.
If the xy scale is 1000x1000 and z range is still 0-10 then a
z-scale of 1 will give a very flat looking image. (10 m height range
spread over 1000 meter xy "range").
cheers
Mike
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED]]On Behalf Of Ken Hickey
> Sent: Thursday, 21 November 2002 7:35 AM
> To: [EMAIL PROTECTED]
> Subject: setting Z-scale
>
>
> g'day
>
> Does anyone know how the Z-scale % values relate to actual z-values in a height
>layer? I have a DEM that I am
> looking at in 3D perspective view (height values in meters), I want to set vertical
>exaggeration to 1, but I
> can't make sense of the z-scale values. Visually, a x1 vertical exaggeration seems
>to correspond to ~ 500% Z-scale
>
> cheers
> Ken Hickey
>
> ------------------------------------------------------------------
> Kenneth Hickey
> Mineral Deposit Research Unit (MDRU)
> Department of Earth and Ocean Sciences
> University of British Columbia
> 6339 Stores Rd, Vancouver, BC V6T 1Z4, Canada
> phone +1-604-822-3765; Fax +1-604-822-6088
> email: [EMAIL PROTECTED]
>
>
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