Network Analyst Locator (arcpy)

摘要

提供用于确定网络位置的类的源、捕捉类型和搜索查询信息。

讨论

定位器对象的 source、snapType 和 searchQuery 属性是动态的。也就是说，给定的定位器对象支持的属性总数取决于 locatorCount 属性。例如，如果 locatorCount 属性的值为 2，则定位器对象会支持 source0、source1、snapType0、snapType1、searchQuery0 和 seacrhQuery1 属性。

属性

属性	说明	数据类型
sourceX (只读)	The name of a particular class used by the locator.	String
snapTypeX (只读)	An underscore-separated string containing the snap types used for a given class in the locator. The possible snap types are NONE SHAPE MIDDLE END	String
searchQueryX (只读)	A query to restrict the search to a subset of the features within a given class in the locator.	String

代码实例

网络分析定位器示例

显示网络分析图层的定位器属性。

# Name: NALayerLocatorProperties_ex01.py
# Description: Prints the source name and snap type information
#              for the locators used by a network analysis layer

import arcpy

in_layer = "C:/Data/Route.lyr" 

# Create a Describe object from layer file.
desc = arcpy.Describe(in_layer) 

count = desc.locatorCount 
locators = desc.locators 

#print locator information
print "Total Locators: ", count 
for i in range(0, count): 
    sourceName = getattr(locators,"source" + str(i))
    snapType = getattr(locators,"snapType" + str(i))
    query = getattr(locators, "searchQuery" + str(i))
    print "%s : %s : %s" % (sourceName,snapType, query)