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Is there way in ArcEditor (10.0) to adjust all the vertices z values by an offset? (translate in z axis?)

I have many polylines which need to be lowered (eg: subtract 1m from every vertex z-value).

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up vote 5 down vote accepted

You could look at the Adjust 3D Z Geoprocessing Tool.

The help mentions

adjust_value : A value to apply to all Z-values. To decrease the Z-values for the entire feature class, enter a negative number. To increase, enter a positive value.

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