ArcMap

Flip Line

Summary

Reverses the from-to direction of line features.

You can view the orientation of line features by symbolizing line features with arrowheads.

Usage

  • Direction-dependent attributes, such as address ranges, are not flipped—only the geometry is flipped. For example, suppose a line feature has an LF-ADD attribute ('left from address') of 100 and an LT-ADD ('left-to address') of 198. These values will not change if the line is flipped.

  • When input is a feature layer with a selection, only selected features will be modified.

Syntax

FlipLine(in_features)
ParameterExplanationData Type
in_features

The input line feature class or layer.

Feature Layer

Derived Output

NameExplanationData Type
out_feature_class

The updated input features.

Feature Class

Code sample

FlipLine example 1 (Python window)

Shows, within the Python window, how to use Python command to flip lines.

import arcpy
arcpy.FlipLine_edit("C:/data/project.gdb/streams")
FlipLine example 2 (stand-alone script)

This example shows how to use Python stand-alone script to do in-place editing.

# Name: Flipline_Example.py
# Description: Flip line features

import arcpy
arcpy.env.workspace = "C:/data/project.gdb"

inFeatures = "streams"

arcpy.FlipLine_edit(inFeatures)

Environments

Licensing information

  • Basic: No
  • Standard: Yes
  • Advanced: Yes

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