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Generating Hillshades in Arc

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#1
dveit

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Hi ,
I would like to know what Z factor people are using when generating hillshades using Arc Spatial/3-D Analyst in order to acheive that "real-life" feel. I am currently using 0.000011559 Thanks

#2
Crischan

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Actually the z-factor is there to make sure that vertical und horizontal date is equally spaced. then lighting angle and azimuth become key factors.
your value looks like you're matching degrees for horizontal and meters or feet for vertical units. for that case the right z-factor depends on latitude!

nevertheless, playing around with z-factors to exaggerate height for visually appealing shaded reliefs. so i'd say there's no general answer. depends on portrayed area then and mix of vertical and horizontal units.
Crischan Wygoda
http://wygoda.net

#3
DaveB

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You might also want to take a look at Setting the Z Factor Parameter Correctly on the ESRI Mapping Center. :D
Dave Barnes
Esri
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