Inspects each feature in a feature class for problems with its geometry. Upon discovery of a problem, a fix will be applied, and a one-line description will identify the feature, as well as the geometry problem that was fixed.
This tool uses the same logic as the Check Geometry tool to repair geometry problems.
This tool modifies the input data. See Tools that modify or update the input data for more information and strategies to avoid undesired data changes.
Valid input formats are shapefiles and feature classes stored in a file or enterprise geodatabase. For feature classes stored in an enterprise geodatabase, the following spatial types are supported:
The Enable Undo toggle button is not valid for inputs from an enterprise geodatabase.
Below is the list of geometry problems and the corresponding fix that will be performed by the tool:
Below is the list of geometry problems that may occur from data stored in an enterprise geodatabase and the corresponding fix that will be performed by the tool:
Some problems associated with data stored in an enterprise database may not be repairable with ArcGIS tools.
After applying a fix, the tool will reevaluate the resulting geometry and if another problem is discovered, the relevant fix will be performed for that problem. For example, the result of fixing a geometry with the Incorrect ring ordering problem may yield a geometry with the Null geometry problem.
There is no fix in Repair Geometry for bad dataset extent. To resolve this problem, run the Recalculate Feature Class Extent tool on the dataset.
The Esri validation method ensures that geometry is topologically legal using the Esri Simplify method. The Esri validation is only available for data stored in an enterprise geodatabase.
The Open Geospatial Consortium (OGC) validation method ensures that geometry complies with the OGC specification as defined in OpenGIS Implementation Standard for Geographic information – simple feature access – Part 1: common architecture.
After a feature's geometry is repaired using the OGC option, any subsequent edit or modification may cause the geometry to no longer comply with the OGC specification. After feature modification, run the Check Geometry tool to check for new geometry issues. If necessary, rerun the Repair Geometry tool.
OGC simplify does not support nonlinear segments such as Bézier curves, circular arcs, and elliptic arcs. These types of segments must be densified using the Densify tool on the input dataset before running Repair Geometry. To avoid irreversibly changing nonlinear segments when running the Densify tool, make a copy of the data first. Then use Repair Geometry on the copy. To determine if your data has nonlinear segments, use the Add Geometry Attributes tool.
| Label | Explanation | Data Type |
Input Features | The feature class or layer to be processed. | Feature Layer |
Delete Features with Null Geometry (Optional) | Specifies whether features with null geometries will be deleted.
| Boolean |
Validation Method (Optional) | Specifies which geometry validation method will be used to identify geometry problems.
| String |
| Label | Explanation | Data Type |
| Repaired Input Features | The updated input features. | Feature Layer |
arcpy.management.RepairGeometry(in_features, {delete_null}, {validation_method})| Name | Explanation | Data Type |
in_features | The feature class or layer to be processed. | Feature Layer |
delete_null (Optional) | Specifies whether features with null geometries will be deleted.
Note:Only KEEP_NULL is valid for inputs from an enterprise geodatabase. | Boolean |
validation_method (Optional) | Specifies which geometry validation method will be used to identify geometry problems.
| String |
| Name | Explanation | Data Type |
| out_feature_class | The updated input features. | Feature Layer |
The following Python window script demonstrates how to use the RepairGeometry function in immediate mode on a shapefile.
import arcpy
arcpy.RepairGeometry_management("c:/data/sketchy.shp")The following stand-alone script is an example of how to apply the RepairGeometry function in scripting.
# Description:
# Goes through the table generated by the Check Geometry tool and does
# the following
# 1) backs-up all features which will be 'fixed' to a "_bad_geom" feature class
# 2) runs repairGeometry on all feature classes listed in the table
import arcpy
import os
# Table that was produced by Check Geometry tool
table = r"c:\temp\data.gdb\cg_sample1"
# Create local variables
fcs = []
# Loop through the table and get the list of fcs
for row in arcpy.da.SearchCursor(table, ("CLASS")):
# Get the class (feature class) from the cursor
if not row[0] in fcs:
fcs.append(row[0])
# Now loop through the fcs list, backup the bad geometries into fc + "_bad_geom"
# then repair the fc
print("> Processing {0} feature classes".format(len(fcs)))
for fc in fcs:
print("Processing " + fc)
lyr = 'temporary_layer'
if arcpy.Exists(lyr):
arcpy.Delete_management(lyr)
tv = "cg_table_view"
if arcpy.Exists(tv):
arcpy.Delete_management(tv)
arcpy.MakeTableView_management(table, tv, ("\"CLASS\" = '%s'" % fc))
arcpy.MakeFeatureLayer_management(fc, lyr)
arcpy.AddJoin_management(lyr, arcpy.Describe(lyr).OIDFieldName, tv, "FEATURE_ID")
arcpy.CopyFeatures_management(lyr, fc + "_bad_geom")
arcpy.RemoveJoin_management(lyr, os.path.basename(table))
arcpy.RepairGeometry_management(lyr)