Enable COGO (Data Management)

Summary

Enables COGO on a line feature class and adds COGO fields and COGO-enabled labeling to a line feature class. COGO fields store dimensions that are used to create line features in relation to each other.

Usage

• Adds the following COGO fields to the selected line feature class: Arc Length, Direction, Distance, Radius, and Radius2. All fields are of type Double.

• Adds COGO-related labeling and symbology to the selected line feature class. Lines are drawn with added COGO symbology, and a label expression labels each line with its COGO dimensions if they exist.

• Run the Disable COGO geoprocessing tool to disable COGO on the line feature class. The COGO fields can be deleted.

• If one or more of the COGO fields already exist and are of the correct type, only the remaining, missing COGO fields are added.

• If a line feature class is COGO enabled, the Traverse tool populates the COGO fields with the entered dimensions.

  Learn more about the Traverse tool

• If a line feature class is COGO enabled, creating lines with the 2 Point Line tool using editing constraints populates the COGO fields with the constraint dimensions.

• The Direction field stores the direction (bearing) of the line from its start point to its endpoint.

• The Distance field stores the distance (length) of the line.

• The ArcLength field stores the arc distance between the start point and endpoint of a curved line.

• The Radius field stores the distance between the curve center point and the curve line.

• The Radius2 field stores the second radius for a spiral curve. This radius can be set to infinity.

Syntax

arcpy.management.EnableCOGO(in_line_features)

Parameter	Explanation	Data Type
in_line_features	The line feature class that will be COGO enabled.	Feature Layer

Derived Output

Name	Explanation	Data Type
updated_line_Features	The COGO enabled dataset.	Table View

Code sample

EnableCOGO example 1 (Python window)

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

import arcpy
arcpy.env.workspace = "E:\ArcGISXI\Mont\Montgomery.gdb"
arcpy.EnableCOGO_management("\Landbase\Road_cl")

EnableCOGO example 2 (stand-alone script)

The following stand-alone script demonstrates how to check for and enable COGO on a line feature class.

import arcpy

# Variable to contain the path of the feature class that is to be COGO Enabled
lineFeatureClass = r"d:\test.gdb\myLineFC"

# Check to see if the feature class is already enabled by using .isCOGOEnabled on a Describe
if arcpy.Describe(lineFeatureClass).isCOGOEnabled == False:
    # If it returns False, run EnableCOGO_management and pass the feature class
    arcpy.EnableCOGO_management(lineFeatureClass)
else:
    print("{} is already COGO Enabled".format(lineFeatureClass))

Environments

This tool does not use any geoprocessing environments.

Licensing information

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