Overlay Events (Location Referencing)

Disponible avec la licence Location Referencing.

Résumé

Overlays one or more linear event feature layers onto a target network and outputs a feature class or table that represents the dynamic segmentation of the inputs.

Utilisation

• All input Event Layers must be line events.

• The Event Layers parameter can only include linear event feature classes registered with an ArcGIS Location Referencing network.

• If the input events use different linear referencing methods (LRM), they will be translated using the LRM of the target network.

• This tool supports selection sets.

• This tool supports definition filters.

• This tool supports input Event Layers that are configured to contain events that span multiple routes. The output will still dynamically segment at the route level of the target network using the Network Fields parameter.

• This tool supports temporal segmentation (time slicing). This will occur by default and can be overridden by creating a time-based definition query or applying a selection set to the inputs.

• This tool supports including one or more fields from the network feature class in the output using the Network Fields parameter.

• The output can be saved as either a table or a feature class.

• If saved as a table or feature class, the output will have the following indexes and fields:

  Index	Field
  Route_ID	Route_ID
  Rid_Dates_Me	Route_ID From_Date To_Date From_Measure To_Measure

• If the target LRS Network is configured as a line network with support for a multifield route ID, the following parameters are not required for appending routes:

  • Route Name Field
  • Line Name Field

• This tool supports the Gas Utility Network Configuration pipeline feature layer as an input event layer if this feature class has been configured for use with an LRS using the Configure Utility Network Feature Class tool.

• If more than one LRS Network exists in the Gas Utility Network Configuration, the measures for the input event layers will match the measures shown in the right column of the table below.

  If the LRS with the Gas Utility Network Configuration contains	The measures in the PipelineLine feature class belong to
  Line network, nonline network	Line network
  Line network	Line network
  More than one line network	Line network that has the derived network
  More than one line network with no derived network	Line network that has the lowest number in the coded-value domain, dLRSNetworks
  More than one line network with derived networks	Line network that has the lowest number in the coded-value domain, dLRSNetworks
  One nonline network	Nonline network
  More than one nonline network	Network that has the lowest number in the coded-value domain, dLRSNetworks

• This tool supports physically gapped routes and events as input routes and input events, respectively.

Syntaxe

arcpy.locref.OverlayEvents(in_route_features, event_layers, output_dataset, {include_geometry}, {network_fields})

Paramètre	Explication	Type de données
in_route_features	The target network onto which the event layers will be dynamically segmented.	Feature Layer
event_layers [event_layers,...]	The event layers to be dynamically segmented together onto a target network.	Feature Layer
output_dataset	The table or feature class to be created, containing the output event records.	Table
include_geometry (Facultatif)	Specifies whether the output_dataset will include event geometry. EXCLUDE_GEOMETRY —The output_dataset will not include event geometry. Event records will be stored as a table. This is the default. INCLUDE_GEOMETRY —The output_dataset will include event geometry. Event records will be stored as a feature class.	Boolean
network_fields [network_fields,...] (Facultatif)	Fields from the network layer that will be included in the output.	Field

Exemple de code

OverlayEvents example 1 (Python window)

The following Python window script demonstrates how to use the OverlayEvents tool in the Python window.

# Name: OverlayEvents_ex1.py
# Description: Overlays linear event feature layers against a target network and output a feature class or table that represents the dynamic segmentation of those inputs.
# Requirements: ArcGIS Location Referencing

# Check out license
arcpy.CheckOutExtension("LocationReferencing")

# tool variables
in_route_features = r"C:\Data\NY_Data.gdb\LRS\LRSN_MilePoint"
event_layers = [r"C:\Data\NY_Data.gdb\LRS\LRSE_Access_Control", r"C:\Data\NY_Data.gdb\LRS\LRSE_Functional_Class"]
output_dataset = r"C:\Data\NY_Data.gdb\LRS\Output"
include_geometry = "EXCLUDE_GEOMETRY"
network_fields = ""

# Set current workspace
arcpy.env.workspace = "C:\Data\NY_Data.gdb"

# Execute the tool
arcpy.OverlayEvents_locref(in_route_features, event_layers, output_dataset, include_geometry, network_fields)

# Check in license
arcpy.CheckInExtension('LocationReferencing')

OverlayEvents example 2 (stand-alone script)

The following Python script demonstrates how to use the OverlayEvents tool in a stand-alone Python script:

# Name: OverlayEvents_ex2.py
# Description: Overlay linear event feature layers against a target network then output a feature class or table that represents the dynamic segmentation of those inputs.
# Requires: ArcGIS Location Referencing
 
# Import arcpy module
import arcpy
 
# Check out license
arcpy.CheckOutExtension("LocationReferencing")

# Local variables:
Network = r"C:\Data\NY_Data.gdb\LRS\LRSN_MilePoint"
Events = [r"C:\Data\NY_Data.gdb\LRS\LRSE_Access_Control", r"C:\Data\NY_Data.gdb\LRSE_Functional_Class"]
Output_Dataset = r"C:\Data\NY_Data.gdb\LRS\Output"
Geometry = "EXCLUDE_GEOMETRY"
Network_Fields = ""

# Process: Overlay Events
arcpy.OverlayEvents_locref(Network, Events, Output_Dataset, Geometry, Network_Fields)

# Check in license
arcpy.CheckInExtension('LocationReferencing')

OverlayEvents example 3 (stand-alone script)

The following stand-alone script demonstrates how to use the OverlayEvents tool in a feature service:

# Name: OverlayEvents_Pro_Ex3.py
# Description: Overlay events using a feature service. It is recommended to work in a version and post to the default version.
# Requires: ArcGIS Location Referencing
 
# Import arcpy module
import arcpy
 
# Check out license
arcpy.CheckOutExtension("LocationReferencing")

#Input LRS network and events are in feature service. Portal signi is required to access the feature service.
arcpy.SignInToPortal('https://yourdomain.com/portal', 'username', 'password')

# Map the input LRS network and events from the feature service. Here, 1 corresponds to the input LRS network and 2 and 3 corresponds to input events.
in_network  = r"https://yourdomain.com/server/rest/services/FeatureServiceName/FeatureServer/1"
event1 = r"https://yourdomain.com/server/rest/services/FeatureServiceName/FeatureServer/2"
event2 = r"https://yourdomain.com/server/rest/services/FeatureServiceName/FeatureServer/3"
in_events = [event1, event2]

# Set tool variables
Output_Dataset = r"C:\Data\LocationReferencing.gdb\LRS\output"
Geometry = "EXCLUDE_GEOMETRY"
Network_Fields = ""

# Process: Overlay Events.
arcpy.OverlayEvents_locref(in_network, in_events, Output_Dataset, Geometry, Network_Fields)

# Check in license
arcpy.CheckInExtension('LocationReferencing')

Environnements

Espace de travail courant

Informations de licence

• Basic: Requiert ArcGIS Location Referencing
• Standard: Requiert ArcGIS Location Referencing
• Advanced: Requiert ArcGIS Location Referencing