Where can I find a spatialreference object in ArcGIS?
A SpatialReference object can also be accessed from existing datasets using the Describe spatialReference property. XY, Z, and M extents are not the same as spatial reference domains.
Can a spatial reference be accessed from an existing dataset?
A SpatialReference object can also be accessed from existing datasets using the Describe spatialReference property. XY, Z, and M extents are not the same as spatial reference domains. The XY, Z, and M domains in a spatial reference define the valid range of coordinate values that can be stored in a feature class.
What are the domains in a spatial reference?
The XY, Z, and M domains in a spatial reference define the valid range of coordinate values that can be stored in a feature class. The feature class extents reflect the actual range of coordinate values that exist in the feature class. These extents cannot be larger than the domains.
How to restore or update the spatial reference object?
Restore or update the spatial reference object using a WKT string. The exportToString method can be used to export a WKT string representation of the spatial reference. Using a WKT string with a horizontal coordinate system. Using a WKT string with a horizontal and vertical coordinate system.
What does the error message Unknown spatial reference mean?
Adding data to ArcMap which does not have the coordinate system or projection defined displays the following error message: “Unknown Spatial Reference. The following data sources you added are missing spatial reference information. This data can be drawn in ArcMap, but cannot be projected.”.
How is the spatial coordinate system in ArcGIS Pro created?
Because a projected coordinate system is based on a geographic coordinate system, projected coordinate system properties can be accessed from a geographic coordinate system via the GCS property. The horizontal coordinate system used to create the SpatialReference.