描述
Enables or modifies the referent fields so that you can manage referent information for the registered LRS event.
使用方法
The tool enables the referent fields by allowing you to register the existing fields as the referent fields.
If referent fields are already enabled, then by default, the tool will populate the existing fields so that they can be modified.
The existing data in the referent fields is not validated or updated when you enable or modify the referent fields.
To disable the referent fields, use the Disable Referent Fields tool.
语法
arcpy.locref.EnableReferentFields(in_feature_class, {from_referent_method_field}, {from_referent_location_field}, {from_referent_offset_field}, {to_referent_method_field}, {to_referent_location_field}, {to_referent_offset_field}, {offset_units})
参数 | 说明 | 数据类型 |
in_feature_class | The feature class that will be used for the LRS event. | Feature Layer |
from_referent_method_field (可选) | The From referent method field. | Field |
from_referent_location_field (可选) | The From referent location field. | Field |
from_referent_offset_field (可选) | The From referent offset field. | Field |
to_referent_method_field (可选) | The To referent method field. | Field |
to_referent_location_field (可选) | The To referent location field. | Field |
to_referent_offset_field (可选) | The To referent offset field. | Field |
offset_units (可选) | Specifies the offset units to be used. The default is feet.
| String |
派生输出
名称 | 说明 | 数据类型 |
out_feature_class | The updated event feature layer. | Feature Layer |
代码示例
The following Python window script demonstrates how to use the EnableReferentFields tool in immediate mode to enable referent fields for an existing LRS event.
# Name: Enable_Referent_Fields_ex1.py
# Description: Enable referent fields for an existing LRS Event that already has referent fields configured.
# Requires: ArcGIS Location Referencing
# Check out license
arcpy.CheckOutExtension("LocationReferencing")
# Local variables:
inputEventFC = r"c:\EnableReferent\Py\EnableReferent.gdb\LRS"
fromReferentMethodField = 'FromRefMethod'
fromReferentLocationField = 'FromRefLocation'
fromReferentOffsetField = 'FromRefOffset'
toReferentMethodField = 'ToRefMethod'
toReferentLocationField = 'ToRefLocation'
toReferentOffsetField = 'ToRefOffset'
offsetUnit = 'FEET'
# Execute the tool
arcpy.EnableReferentFields_locref(inputEventFC, fromReferentMethodField, fromReferentLocationField,
fromReferentOffsetField, toReferentMethodField, toReferentLocationField,
toReferentOffsetField, offsetUnit)
# Check in license
arcpy.CheckInExtension('LocationReferencing')
The following stand-alone Python script demonstrates how to use the EnableReferentFields tool to enable referent fields for an existing LRS event.
# Name: Enable_Referent_Fields_ex2.py
# Description: Enables referent fields for an existing LRS Event.
# Requires: ArcGIS Pipeline Referencing
# Import arcpy module
import arcpy
# Check out license
arcpy.CheckOutExtension("LocationReferencing")
# Local variables
inputEventFC = "c:\EnableReferent\Py\EnableReferent.gdb\LRS"
fromReferentMethodField = 'FromRefMethod'
fromReferentLocationField = 'FromRefLocation'
fromReferentOffsetField = 'FromRefOffset'
toReferentMethodField = 'ToRefMethod'
toReferentLocationField = 'ToRefLocation'
toReferentOffsetField = 'ToRefOffset'
offsetUnit = 'FEET'
# execute the tool
arcpy.EnableReferentFields_locref(inputEventFC, fromReferentMethodField, fromReferentLocationField,
fromReferentOffsetField, toReferentMethodField, toReferentLocationField,
toReferentOffsetField, offsetUnit)
# Check in license
arcpy.CheckInExtension('LocationReferencing')
The following stand-alone Python script demonstrates how to use the EnableReferentFields tool to modify referent fields for an existing LRS event that already has configured referent fields.
# Name: Enable_Referent_Fields_ex3.py
# Description: Modifies referent fields for an existing LRS Event that already has referent fields configured.
# Requires: ArcGIS Location Referencing
# Import arcpy module
import arcpy
# Check out license
arcpy.CheckOutExtension("LocationReferencing")
# Local variables:
inputEventFC = r"c:\EnableReferent\Py\EnableReferent.gdb\LRS"
toReferentMethodField = 'ToRefMethod2'
toReferentLocationField = 'ToRefLocation2'
toReferentOffsetField = 'ToRefOffset2'
# Execute the tool
arcpy.EnableReferentFields_locref(inputEventFC, '' , '' , '' , toReferentMethodField, toReferentLocationField, toReferentOffsetField)
# Check in license
arcpy.CheckInExtension('LocationReferencing')
环境
许可信息
- Basic: 需要 ArcGIS Location Referencing
- Standard: 需要 ArcGIS Location Referencing
- Advanced: 需要 ArcGIS Location Referencing