BUG-000130018 for ArcGIS Pro

Bug ID Number	BUG-000130018
Submitted	April 9, 2020
Last Modified	June 25, 2025
Applies to	ArcGIS Pro
Version found	2.5
Operating System	N/A
Operating System Version	N/A
Status	As Designed

Additional Information

This issue is retested in ArcGIS Pro 3.2 through ArcGIS Pro 3.5. The minimum height extrusion behaves as designed, in that the minimum Z of all the vertices in the feature is used as the base for the 50-unit extrusion. This by definition results in some of the line being underground in the Grand Canyon. As to what is shown as the correct behavior in the attached video, that is actually base height extrusion; each VERTEX is used as the base for the 50m extrusion. Refer to this documentation: https://pro.arcgis.com/en/pro-app/latest/help/mapping/layer-properties/extrude-features-to-3d-symbology.htm for more information. The minimum extrusion is to add extrusion to each feature's minimum height. A z-value is calculated by adding the extrusion height to the minimum z-value of each feature. They are extruded to a flat top at that value. The base height is to add extrusion to each vertex of each feature's base height. A z-value is calculated for each vertex of the feature's base, and each feature is extruded to those z-values.