描述
街道名称字段对象提供一些字段的信息,这些字段包含了在报告行驶方向时所用的街道名称。
属性
| 属性 | 说明 | 数据类型 | 
| prefixDirectionFieldName (只读) | 用于前缀方向的字段名称。 | String | 
| prefixTypeFieldName (只读) | 用于前缀类型的字段名称。 | String | 
| streetNameFieldName (只读) | 用于街道名称的字段名称。 | String | 
| suffixDirectionFieldName (只读) | 用于后缀方向的字段名称。 | String | 
| suffixTypeFieldName (只读) | 用于后缀类型的字段名称。 | String | 
| priority (只读) | 何时使用这些街道名称字段的优先级。默认值为 1。 | Integer | 
| fullNameFieldName (只读) | 用于存储整个街道名称的字段名称。 | String | 
| highwayDirectionFieldName (只读) | 用于高速公路方向的字段名称。 | String | 
| languageFieldName (只读) | 用于存储街道名称语言的字段名称。 | String | 
代码示例
街道名称字段属性示例
显示在行驶方向中所用的街道名称字段的相关信息。
# Name: NDSStreetNameFieldsProperties_ex01.py
# Description: Print information about field names used to generate street names
#              in directions  
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  
    #Print the direction information specific to edge source    
    sDir = source.sourceDirections
    # Get the street name fields for each source
    sStreetFields = sDir.streetNameFields 
    for sStreetField in sStreetFields:
        print "Prefix direction field: " , sStreetField.prefixDirectionFieldName
        print "Prefix type field: " , sStreetField.prefixTypeFieldName
        print "Street name field: " , sStreetField.streetNameFieldName
        print "Suffix direction field: " , sStreetField.suffixDirectionFieldName 
        print "Suffix type field: " , sStreetField.suffixTypeFieldName 
        print "Priority: " , sStreetField.priority
        print "Full name field: " , sStreetField.fullNameFieldName
        print "Highway direction field: ",sStreetField.highwayDirectionFieldName
        print "Language field: " , sStreetField.languageFieldName