Update Annotation Reference Scale (Cartography)


Updates the reference scale of an existing annotation or dimension feature class.


  • Before a feature class can have its reference scale updated, it must be upgraded to the current release using the Upgrade Dataset tool.

  • Caution:

    This tool modifies the input data. See Tools that do not create output datasets for more information and strategies to avoid undesired data changes.

  • Versioned feature classes cannot have their reference scale updated.

  • Changing the reference scale of a feature class is an intensive operation that requires an update of every feature's bounding box geometry.

  • An ArcGIS Desktop Standard or ArcGIS Desktop Advanced license is required to update the reference scale of a feature-linked annotation feature class.


UpdateAnnotationReferenceScale(in_anno_features, reference_scale)
ParameterExplanationData Type

The input annotation or dimension features.

Annotation Layer; Dimension Layer

The feature class reference scale to be updated.


Derived Output

NameExplanationData Type

The updated annotation or dimensions.

Annotation Layer; Dimension Layer

Code sample

UpdateAnnotationReferenceScale example (Python window)

The following Python window script demonstrates how to use the UpdateAnnotationReferenceScale tool in immediate mode.

import arcpy


This tool does not use any geoprocessing environments.

Licensing information

  • Basic: Yes
  • Standard: Yes
  • Advanced: Yes

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