Shields

摘要

网络数据集的盾形路牌符号对象将提供有关特定边源的方向盾形路牌符号的设置信息。

属性

属性	说明	数据类型
typeFieldName (只读)	其值包含街道类型的字段名称。	String
numberFieldName (只读)	其值包含门牌号的字段名称。	String
combinedFieldName (只读)	其值包含整个地址描述的字段名称。	String
descriptionCount (只读)	盾形路牌符号的数量。	Integer
description (只读)	盾形路牌符号描述对象。	Object

代码示例

盾形路牌符号属性示例

显示网络数据集中每个边源的方向盾形路牌符号信息。

# 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)"