摘要
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