ArcMap

Validate Topology

Summary

Validates a geodatabase topology.

Validate Topology performs the following operations:

  • Cracking and clustering of feature vertices to find features that share geometry (have common coordinates)
  • Inserting common coordinate vertices into features that share geometry
  • Running a set of integrity checks to identify any violations of the rules that have been defined for the topology

Usage

  • If you validate an enterprise geodatabase topology in ArcCatalog, the feature dataset that the topology is within must not be registered as versioned.

  • This tool will only process dirty areas. For details on dirty areas, see Topology_in_ArcGIS.

  • If the tool is being used in ArcMap, the Visible Extent parameter can be used to limit validation to the extent visible in the map display.

Syntax

ValidateTopology_management (in_topology, {visible_extent})
ParameterExplanationData Type
in_topology

The geodatabase topology to be validated.

Topology Layer
visible_extent
(Optional)

In ArcMap, determines whether to use the current visible extent of the map or the full extent of the topology. If run in ArcCatalog or in a Python script, the entire extent of the topology will be validated regardless of this parameter setting.

  • Full_Extent —The entire extent of the topology will be validated. This is the default.
  • Visible_Extent —Only the current visible extent will be validated.
Boolean

Code sample

ValidateTopology example stand-alone script

The following stand-alone script demonstrates how to use the ValidateTopology function.

# Name: ValidateTopology_Example.py
# Description: Validates a topology

import arcpy
from arcpy import env

arcpy.ValidateTopology_management("D:\Calgary\Trans.mdb\Streets\Street_Topo")

Environments

Licensing information

  • ArcGIS Desktop Basic: No
  • ArcGIS Desktop Standard: Yes
  • ArcGIS Desktop Advanced: Yes

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