Using ZUnits in a polyline ZM shapefile

Discussion created by speaslee on Jun 2, 2011
I have a Python script that reads tracks from a GPX from my Garmin GPS and outputs to a polyline ZM shapefile with the original WGS 1984 coordinate system.

Does anyone know how I can define the ZUNIT as "METER" for the shapefile? I looked all over and was unable to find any documentation or examples of this. What about in a geodatabase featureclass, any different? I am using ArcGIS 9.3.1.

I would like to be able to use the elevation in ArcGlobe and ArcScene.