Extent missing in xml definition, but present in ArcMap

Question

Hi there,

I have this dataset, whose feature class (centroids) has a UTM projection, but the projection is not included in the xml definition itself. In this case, how do I go about extracting projection from the feature class? Is there such thing as default?

Attached is the dataset I've been looking at.. Thanks.

Montgomery.gdb.zip

LanceShipman · Answer

The Montgomery.gdb included in the Tutorial does not include a feature class named centroids. In any case the spatial reference information is stored in two locations. The data in both locations should be the same, but centroids case, it's not. This should never happen, so I'm trying to get an idea of what workflow created it. We are modifying the API to look in both locations when we output a feature class or feature dataset description.

The annotation feature class geometry type is always polygon.

Please note that annotation is not supported by the API. You can read the table, but insert or update is blocked.

eykim · Answer

On EDN portal I downloaded something called ArcGIS_Desktop10_Tutorial_121093.iso and in there was a folder called BuildingAGeodatabase.  I assume you have access to the portal.

I have another question for you. One of the feature class in that dataset is of Annotation feature class. Will the geometry type of annotation feature class always be polygons? Can they be multipoints?

Layer name: Distribution mains diameters

Data Type: File Geodatabase Feature Class 
Location: C:\output\bugzilla\847\Montgomery_ref.gdb
Feature Dataset: Water
Feature Class: DistDiam
Feature Type: Annotation
Geometry Type: Polygon

LanceShipman · Answer

How was the Centroids feature class created? The spatial reference is missing from its description. ArcGIS is getting the information from an alternate location. It should be in both locations.