ArcMap

Turn Source

Résumé

Provides information about turn 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

Exemple de code

Turn Source Properties example

Displays information for turn sources in the network dataset.

# Name: NDSTurnSourceProperties_ex01.py
# Description: Print the information about the turn sources defined for the 
#              network dataset

import arcpy
import sys

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

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

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

#Get all the turn sources for the network dataset
turns = desc.turnSources

#Not all network datasets can have turn sources.
if not turns:
    print ("%*s" % (justify, "(No turn sources)")) 
    sys.exit(0)

for turnSource in turns: 
    print ("%*s: %s" % (justify, "Source Name" , turnSource.name)) 
    print ("%*s: %s" % (justify, "Source ID" , str(turnSource.sourceID))) 
    print ("%*s: %s" % (justify, "Source Type", turnSource.sourceType))
    print ("%*s: %s" % (justify, "Element Type", turnSource.elementType))
    print (" ")