ArcMap

Edge Source Properties

Résumé

Provides information about edge sources in a network dataset.

Propriétés

PropriétéExplicationType de données
name
(Lecture seule)

The name of the feature class associated with this network source.

String
sourceID
(Lecture seule)

The unique identifier of this network source within the network dataset.

Integer
sourceType
(Lecture seule)

The type of network source. This property returns the following keywords:

  • EdgeFeature
  • JunctionFeature
  • SystemJunction
  • TurnFeature
  • NetworkSource

String
elementType
(Lecture seule)

Network element type of the network source. This property returns the following keywords:

  • Edge
  • Junction
  • Turn

String
fromElevationFieldName
(Lecture seule)

The field name in the feature class associated with the given edge feature source that is used as the from elevation field when determining connectivity at coincident end vertices.

String
toElevationFieldName
(Lecture seule)

The field name in the feature class associated with the given edge feature source that is used as the to elevation field when determining connectivity at coincident end vertices.

String
connectivityPolicies
(Lecture seule)

The network dataset edge Connectivity Policies object. This object can be used to determine connectivity information, such as connectivity policies and connectivity groups, used by the edge sources of the network dataset.

Object
sourceDirections
(Lecture seule)

The Network Source Directions object. This object can be used to determine directions properties specific to a particular edge source. The sourceDirections property is available only if the network dataset supports directions which can be determined using the supportsDirections property.

Object

Exemple de code

Edge Source Properties example

Displays information for edge sources in a network dataset.

# Name: NDSAttributeProperties_ex01.py
# Description: Print the information about edge sources defined for the 
#              network dataset 

import arcpy
import sys

# Set workspace
arcpy.env.workspace = "C:/Data/Paris.gdb/Transportation"

# Create a Describe object from the network dataset
desc = arcpy.Describe("ParisMultimodal_ND")

justify = 35
print ("------- Edge sources") 

# Get all the edge sources for the network dataset
edgeSources = desc.edgeSources 

if not edgeSources: 
    print " %*s" % (justify, "(No edge sources)")    
    sys.exit(0) 

for edgeSource in edgeSources: 
    print (" %*s: %s" % (justify, "Source Name" , edgeSource.name))
    print (" %*s: %s" % (justify, "Source ID" , str(edgeSource.sourceID))) 
    print (" %*s: %s" % (justify, "Source Type", edgeSource.sourceType))
    print (" %*s: %s" % (justify, "Element Type", edgeSource.elementType))
    print (" %*s: %s" % (justify, "From Elevation Field",
                         edgeSource.fromElevationFieldName))
    print (" %*s: %s" % (justify, "To Elevation Field",
                         edgeSource.toElevationFieldName))
    print(" ")