ArcMap

Remove Self Intersections

Available with Production Mapping license.

Summary

This tool removes self-intersecting portions of features beyond their vertices of intersection in an input line or polygon feature class.

Illustration

Remove Self Intersections illustration

Usage

  • This tool modifies the input features.

Syntax

arcpy.production.RemoveSelfIntersections(Input_Features, {Maximum_Removal_Length}, {Remove_Self_Intersections_at_End_Point}, {Check_for_Errors_Only}, {Output_Table})
ParameterExplanationData Type
Input_Features

The polyline or polygon feature class from which this tool will remove self-intersections. This feature class (or layer) will be modified.

Feature Layer
Maximum_Removal_Length
(Optional)

The maximum length for input lines or polygons. Features within maximum length are deleted.

Linear unit
Remove_Self_Intersections_at_End_Point
(Optional)

Indicates if this tool will remove, or avoid removing, any self-intersections whose end point is snapped on itself.

  • REMOVE_SNAPPED —Self-intersections will be removed.
  • IGNORE_SNAPPED —Any feature that has an end point that snaps to itself will not be removed. An example is a cul-de-sac. This is the default.
Boolean
Check_for_Errors_Only
(Optional)

Indicates if this tool will report errors only or remove self-intersections.

  • REPORT_ONLY —Self-intersections will not be removed and the records will be added to the Output_Table.
  • REPAIR_ONLY —Self-intersections will be removed. This is the default.
Boolean
Output_Table
(Optional)

The table that will be created containing all errors if REPORT_ONLY is selected in the Check_For_Errors_Only parameter.

Feature Layer

Code sample

RemoveSelfIntersections example 1 (stand-alone script)

The following stand-alone sample script demonstrates how to use the RemoveSelfIntersections tool.

# Name: RemoveSelfIntersections_Example.py
# Description: Remove the self-intersections in the roads feature class that are under 50 meters long.  No warnings or errors will be recorded in a table.

# Import system modules
import arcpy

# Check out extension
arcpy.CheckOutExtension("Foundation")

# Define variables
input_features = r"C:\data\Edit_Sample.gdb\Roads"
maximum_removal_length = "50 Meters"

# Execute Remove Self Intersections
arcpy.RemoveSelfIntersections_production(input_features, maximum_removal_length, "REMOVE_SNAPPED", "REPAIR_ONLY", "#")

# Check in Production Mapping license
arcpy.CheckInExtension("Foundation")

Environments

Licensing information

  • Basic: No
  • Standard: Requires Production Mapping
  • Advanced: Requires Production Mapping

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