Summary
Creates a linear referencing system (LRS) in the specified workspace using existing datasets.
Usage
Minimum schema items are used for the centerline, centerline sequence, calibration point, and redline feature classes. They should be contained in the same geodatabase, should not be used by another LRS in the geodatabase, and should be empty.
Centerline, calibration point, and redline feature classes must reside in a feature dataset.
The spatial reference, tolerance, and resolution of the centerline, calibration points, and redline feature classes should be the same.
The centerline and calibration point feature classes should be z-enabled and can be m-enabled.
The redline feature class should not be z- or m-enabled.
Syntax
arcpy.locref.CreateLRSFromExistingDataset(lrs_name, centerline_feature_class, centerline_centerline_id_field, centerline_sequence_table, centerline_sequence_centerline_id_field, centerline_sequence_route_id_field, centerline_sequence_from_date_field, centerline_sequence_to_date_field, centerline_sequence_network_id_field, calibration_point_feature_class, calibration_point_measure_field, calibration_point_from_date_field, calibration_point_to_date_field, calibration_point_route_id_field, calibration_point_network_id_field, redline_feature_class, redline_from_measure_field, redline_to_measure_field, redline_route_id_field, redline_route_name_field, redline_effective_date_field, redline_activity_type_field, redline_network_id_field)
| Parameter | Explanation | Data Type |
lrs_name | The name of the LRS to create. The name for the LRS cannot already exist in the geodatabase. | String |
centerline_feature_class | The feature class to be used as the centerline in the LRS. | Feature Layer |
centerline_centerline_id_field | The GUID field containing the centerline ID. The field type must match the centerlineID field type in the centerline sequence table. | Field |
centerline_sequence_table | The table to be used as the centerline sequence in the LRS. | Table View |
centerline_sequence_centerline_id_field | The GUID field containing the centerline sequence ID. The field type must match the centerlineID field type and length in the centerline feature class. | Field |
centerline_sequence_route_id_field | The GUID or text field containing the centerline sequence route ID. The field type must match the routeID field type and length in the calibration point and redline feature classes. | Field |
centerline_sequence_from_date_field | A date field containing the centerline sequence from date. | Field |
centerline_sequence_to_date_field | A date field containing the centerline sequence to date. | Field |
centerline_sequence_network_id_field | The field containing the centerline sequence network ID. The short integer field type is supported. | Field |
calibration_point_feature_class | The feature class to be used as the calibration point in the LRS. | Feature Layer |
calibration_point_measure_field | The field containing the calibration point measure. The double field type is supported. | Field |
calibration_point_from_date_field | A date field containing the calibration point from date. | Field |
calibration_point_to_date_field | A date field containing the calibration point to date. | Field |
calibration_point_route_id_field | The field containing the calibration point route ID. GUID and text field types are supported. The field type must match the routeID field type and length in the centerline sequence table and Redline feature class. | Field |
calibration_point_network_id_field | The field containing the calibration point network ID. The short integer field type is supported. | Field |
redline_feature_class | The feature class to be used as the redline in the LRS. | Feature Layer |
redline_from_measure_field | The field containing the redline from measure. The double field type is supported. | Field |
redline_to_measure_field | The field containing the redline to measure. The double field type is supported. | Field |
redline_route_id_field | The field containing the redline route ID. GUID and text field types are supported. The field type must match the routeID field type and length in the calibration point feature class and centerline sequence table. | Field |
redline_route_name_field | A text field containing the redline route name. | Field |
redline_effective_date_field | A date field containing the redline effective date. | Field |
redline_activity_type_field | The field containing the redline activity type. The short integer field type is supported. | Field |
redline_network_id_field | The field containing the redline network ID. The short integer field type is supported. | Field |
Derived Output
| Name | Explanation | Data Type |
| out_path | The path of the newly created LRS Network. | Workspace |
Code sample
This script creates an LRS with existing minimum schema items using the CreateLRSFromExistingDataset function in the Python window.
# Name: Create_LRS_Existing_Dataset_ex1.py
# Description: Create an LRS using existing minimum schema items (Centerline, Centerline Sequence, Calibration Point, Redline) in a file or multiuser geodatabase.
# Requires: ArcGIS Location Referencing
# Check out license
arcpy.CheckOutExtension("LocationReferencing")
# Tool variables
lrs_name = "LRS"
centerline_feature_class = r"C:\Data\PipelineData.sde\LRS\Centerline"
centerline_centerline_id_field = "Centerline_ID"
centerline_sequence_table = r"C:\Data\PipelineData.gdb\CenterlineSequence"
centerline_sequence_centerline_id_field = "Centerline_ID"
centerline_sequence_route_id_field = "Route_ID"
centerline_sequence_from_date_field = "From_Date"
centerline_sequence_to_date_field = "To_Date"
centerline_sequence_network_id_field = "Network_ID"
calibration_point_feature_class = r"C:\Data\PipelineData.gdb\LRS\CalibrationPoint"
calibration_point_measure_field = "Measure"
calibration_point_from_date_field = "From_Date"
calibration_point_to_date_field = "To_Date"
calibration_point_route_id_field = "Route_ID"
calibration_point_network_id_field = "Network_ID"
redline_feature_class = r"C:\Data\PipelineData.gdb\LRS\Redline"
redline_from_measure_field = "From_Measure"
redline_to_measure_field = "To_Measure"
redline_route_id_field = "Route_ID"
redline_route_name_field = "Route_Name"
redline_effective_date_field = "Effective_Date"
redline_activity_type_field = "Activity_Type"
redline_network_id_field = "Network_ID"
# Set current workspace
arcpy.env.workspace = "C:\Data\PipelineData.sde"
# Execute the tool
arcpy.CreateLRSFromExistingDataset_locref(lrs_name, centerline_feature_class, centerline_centerline_id_field,
centerline_sequence_table, centerline_sequence_centerline_id_field,
centerline_sequence_route_id_field, centerline_sequence_from_date_field,
centerline_sequence_to_date_field, centerline_sequence_network_id_field,
calibration_point_feature_class, calibration_point_measure_field,
calibration_point_from_date_field, calibration_point_to_date_field,
calibration_point_route_id_field, calibration_point_network_id_field,
redline_feature_class, redline_from_measure_field, redline_to_measure_field,
redline_route_id_field, redline_route_name_field, redline_effective_date_field,
redline_activity_type_field, redline_network_id_field)
# Check in license
arcpy.CheckInExtension('LocationReferencing')This script creates an LRS with existing minimum schema items using the CreateLRSFromExistingDataset function in a stand-alone Python script.
# Name: Create_LRS_Existing_Dataset_ex2.py
# Description: Create an LRS using existing minimum schema items (Centerline, Centerline Sequence, Calibration Point, Redline) in a file or multiuser geodatabase.
# Requires: ArcGIS Location Referencing
# Import arcpy module
import arcpy
# Check out license
arcpy.CheckOutExtension("LocationReferencing")
# Local variables
lrs_name = "LRS"
centerline_feature_class = r"C:\Data\PipelineData.gdb\LRS\Centerline"
centerline_centerline_id_field = "CenterlineID"
centerline_sequence_table = r"C:\Data\PipelineData.gdb\CenterlineSequence"
centerline_sequence_centerline_id_field = "CenterlineID"
centerline_sequence_route_id_field = "RouteID"
centerline_sequence_from_date_field = "FromDate"
centerline_sequence_to_date_field = "ToDate"
centerline_sequence_network_id_field = "NetworkID"
calibration_point_feature_class = r"C:\DataPipelineData.gdb\LRS\CalibrationPoint"
calibration_point_measure_field = "Measure"
calibration_point_from_date_field = "FromDate"
calibration_point_to_date_field = "ToDate"
calibration_point_route_id_field = "RouteID"
calibration_point_network_id_field = "NetworkID"
redline_feature_class = r"C:\DataPipelineData.gdb\LRS\CalibrationPoint"
redline_from_measure_field = "FromMeasure"
redline_to_measure_field = "ToMeasure"
redline_route_id_field = "RouteID"
redline_route_name_field = "RouteName"
redline_effective_date_field = "EffectiveDate"
redline_activity_type_field = "ActivityType"
redline_network_id_field = "NetworkID"
# Execute the tool
arcpy.CreateLRSFromExistingDataset_locref(lrs_name, centerline_feature_class, centerline_centerline_id_field,
centerline_sequence_table, centerline_sequence_centerline_id_field,
centerline_sequence_route_id_field, centerline_sequence_from_date_field,
centerline_sequence_to_date_field, centerline_sequence_network_id_field,
calibration_point_feature_class, calibration_point_measure_field,
calibration_point_from_date_field, calibration_point_to_date_field,
calibration_point_route_id_field, calibration_point_network_id_field,
redline_feature_class, redline_from_measure_field, redline_to_measure_field,
redline_route_id_field, redline_route_name_field, redline_effective_date_field,
redline_activity_type_field, redline_network_id_field)
# Check in license
arcpy.CheckInExtension('LocationReferencing')Environments
Licensing information
- Basic: Requires ArcGIS Location Referencing
- Standard: Requires ArcGIS Location Referencing
- Advanced: Requires ArcGIS Location Referencing