Shields

Synthèse

The Network Dataset Shields object provides information about the directions shields settings for a given edge source.

Propriétés

Propriété	Explication	Type de données
combinedFieldName (Lecture seule)	The field name whose values contain the whole address description.	String
description (Lecture seule)	The Shields Description object.	Object
descriptionCount (Lecture seule)	The number of shields.	Integer
numberFieldName (Lecture seule)	The field name whose values contain the house number.	String
typeFieldName (Lecture seule)	The field name whose values contain the street type.	String
useCombinedField (Lecture seule)	Indicates whether the shield information is contained in a single field (True) or in two fields (False).	Boolean

Exemple de code

Shields Properties Example

Display the directions shields information for each edge source in the network dataset.

# Name: NDSShieldsProperties_ex01.py
# Description: Print information about directions shields for each edge source

import arcpy
import sys

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

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

#If the directions are not set for the network dataset, exit
if not desc.supportsDirections:
    print("No direction information")
    sys.exit()

print("Source Direction Information ----")

# Get all the edge sources
sources = desc.edgeSources

if not sources:
    print("No edge sources")
    sys.exit()
#Loop through all the edge sources
for source in sources:
    print("--------------------")
    print("Name: " , source.name)
    print("Source ID: " , source.sourceID)
    #Get the direction information specific to edge source
    sDir = source.sourceDirections
    #Get the shields for each source
    shields = sDir.shields
    if shields:
        print("Shield type field: " , shields.typeFieldName)
        print("Number field:" , shields.numberFieldName)
        print("Combined field: " , shields.combinedFieldName)
        print("Description count: " , shields.descriptionCount)
    else:
        print("(No shield information)")