Summary
Creates a linear referencing system (LRS) and minimum schema items in a specified workspace.
Usage
The minimum schema items created are the Centerline, Centerline Sequence, Calibration Point, and Redline feature classes.
The names for the LRS, centerline, calibration point, redline, and centerline sequence should be unique and not already exist in the geodatabase.
The spatial reference, tolerance, and resolution inputs will be applied to all output feature classes.
If the input location is a feature dataset, the spatial reference, tolerance, and resolution of the feature dataset must match that of the inputs for the tool.
The xy- and z-tolerance must be at least twice as large as the xy- and z-resolution.
Syntax
arcpy.locref.CreateLRS(in_workspace, lrs_name, centerline_feature_class_name, calibration_point_feature_class_name, redline_feature_class_name, centerline_sequence_table_name, spatial_reference, {xy_tolerance}, {z_tolerance}, {xy_resolution}, {z_resolution})| Parameter | Explanation | Data Type |
in_workspace | The file or multipurpose geodatabase where the LRS and minimum schema will be created. | Workspace; Feature Dataset |
lrs_name | The name of the output LRS. | String |
centerline_feature_class_name | Name of the output centerline feature class. | String |
calibration_point_feature_class_name | Name of the output calibration point feature class. | String |
redline_feature_class_name | Name of the output redline feature class. | String |
centerline_sequence_table_name | Name of the output centerline sequence table. | String |
spatial_reference | The spatial reference for the output feature classes. When executing from a Python script, you can use the Well Known ID (WKID) for the spatial reference. | Spatial Reference |
xy_tolerance (Optional) | The xy-tolerance of the output feature classes. | Linear Unit |
z_tolerance (Optional) | The z-tolerance of the output feature classes. | Linear Unit |
xy_resolution (Optional) | The xy-resolution of the output feature classes. | Linear Unit |
z_resolution (Optional) | The z-resolution of the output feature classes. | Linear Unit |
Derived Output
| Name | Explanation | Data Type |
| out_workspace | The updated LRS workspace. | Workspace; Feature Dataset |
| out_centerline_feature_class | The updated centerline feature layer. | Feature Class |
| out_calibration_point_feature_class | The updated calibration point feature layer. | Feature Class |
| out_redline_feature_class | The updated redline feature layer. | Feature Class |
| out_centerline_sequence_table | Updated centerline sequence table. | Table |
Code sample
Demonstrates how to use the CreateLRS tool in immediate mode.
# Name: Create_LRS_ex1.py
# Description: Create an LRS and minimum schema items (Centerline, Centerline Sequence, Calibration Point, Redline).
# Requires: ArcGIS Location Referencing
# Check out license
arcpy.CheckOutExtension("LocationReferencing")
# Tool variables
in_workspace = r"C:/Data/PipelineData.gdb/"
lrs_name = "LRS"
centerline_feature_class_name = "Centerline"
calibration_point_feature_class_name = "Calibration_Point"
redline_feature_class_name = "Redline"
centerline_sequence_table_name = "Centerline_Sequence"
spatial_reference = "26111"
xy_tolerance = "0.01 Meters"
z_tolerance = "0.01 Meters"
xy_resolution = "0.001 Meters"
z_resolution = "0.001 Meters"
# Set current workspace
arcpy.env.workspace = "C:/Data/PipelineData.gdb"
# execute the tool
arcpy.CreateLRS_locref(in_workspace, lrs_name, centerline_feature_class_name, calibration_point_feature_class_name,
redline_feature_class_name, centerline_sequence_table_name, spatial_reference, xy_tolerance,
z_tolerance, xy_resolution, z_resolution)
# Check in license
arcpy.CheckInExtension('LocationReferencing')Demonstrates how to use the CreateLRS tool as a stand-alone Python script.
# Name: Create_LRS_ex2.py
# Description: Create an LRS and minimum schema items (Centerline, Centerline Sequence, Calibration Point, Redline).
# Requires: ArcGIS Location Referencing
# Import arcpy module
import arcpy
# Check out license
arcpy.CheckOutExtension("LocationReferencing")
# Local Variables
in_workspace = r"C:\Data\PipelineData.gdb"
lrs_name = "LRS"
centerline_feature_class_name = "Centerline"
calibration_point_feature_class_name = "CalibrationPoint"
redline_feature_class_name = "Redline"
centerline_sequence_table_name = "CenterlineSequence"
spatial_reference = "NAD83 Albers Equal Area, 48 States, Panhandle, US Foot"
xy_tolerance = "0.001 Feet"
z_tolerance = "0.001 Feet"
xy_resolution = "0.0001 Feet"
z_resolution = "0.0001 Feet"
arcpy.CreateLRS_locref(in_workspace, lrs_name, centerline_feature_class_name, calibration_point_feature_class_name,
redline_feature_class_name, centerline_sequence_table_name, spatial_reference, xy_tolerance,
z_tolerance, xy_resolution, z_resolution)
# Check in license
arcpy.CheckInExtension('LocationReferencing')Environments
Licensing information
- Basic: Requires ArcGIS Location Referencing
- Standard: Requires ArcGIS Location Referencing
- Advanced: Requires ArcGIS Location Referencing