System Junction Source

摘要

Provides information about system junction sources in a network dataset.

属性

属性	说明	数据类型
name （只读）	The name of the feature class associated with this network source.	String
sourceID （只读）	The unique identifier of this network source within the network dataset.	Integer
sourceType （只读）	The type of network source. This property returns the following keywords: EdgeFeature JunctionFeature SystemJunction TurnFeature NetworkSource	String
elementType （只读）	Network element type of the network source. This property returns the following keywords: Edge Junction Turn	String
elevationFieldName （只读）	The field name that is used as the elevation field when determining connectivity at coincident vertices.	String

代码示例

System Junction Source Properties Example

Displays information for system junction sources in the network dataset.

# Name: NDSSystemJunctionSourceProperties_ex01.py
# Description: Print the information about the system junction 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 ("------- System junction source")

#SDC network datasets do not have system junction source.
networktype = desc.networkType 
if networktype.lower() == "sdc": 
    print ("%*s" % (justify, "(No system junction source)")) 
    sys.exit(0)

#Get the system junction source for the network dataset.
sjSource = desc.systemJunctionSource 
if not sjSource: 
    print ("%*s" % (justify, "(No system junction sources)")) 
    sys.exit(0) 

print ("%*s: %s" % (justify, "Source Name" , sjSource.name)) 
print ("%*s: %s" % (justify, "Source ID" , str(sjSource.sourceID))) 
print ("%*s: %s" % (justify, "Source Type", sjSource.sourceType))
print ("%*s: %s" % (justify, "Element Type", sjSource.elementType))
print (" %*s: %s" % (justify, "Elevation Field",sjSource.elevationFieldName))
print (" ")