3D lines

[MikeCusi]

How is 3D information stored for 3d polylines? Is it Z data for every vertex? If so, will "densifying" the line work as I expect it should, that is an interpolated Z value for every added vertex?

[XanderBakker]

In a 3D line all vertices have a Z. When using Desify the intermediate points will have their Z interpolated.

[MikeCusi]

If this 3D line is then converted to a polygon, how is the Z value derived for the resulting polygon?

[XanderBakker]

Does the polygon has a single Z value? Probably not. How would you like to retrieve the Z value of the polygon?

[VictorKlinkenberg]

Hi Mike,

Do you want all vertices in your new polygon to retain their Z? Perhaps first triangulate your polyline to a TIN and then to a MultiPatch or 3D (multipart) polygons.