摘要
提供有关网络数据集中系统交汇点源的信息。
属性
属性 | 说明 | 数据类型 |
name (只读) | 与该网络源相关的要素类名称。 | String |
sourceID (只读) | 网络数据集内此网络源的唯一标识符。 | Integer |
sourceType (只读) | 网络源类型。此属性返回以下关键字:
| String |
elementType (只读) | 网络源的网络元素类型。此属性返回以下关键字:
| String |
elevationFieldName (只读) | 确定重合顶点处的连通性时,用作高程字段的字段名。 | String |
代码示例
显示网络数据集中系统交汇点源的信息。
# Name: NDSSystemJunctionSourceProperties_ex01.py
# Description: Print the information about the system junction sources
# defined for the network dataset
import arcpy
import sys
# Set workspace
arcpy.env.workspace = "C:/Data/SanFrancisco.gdb/Transportation"
#Create a Describe object from the network dataset
desc = arcpy.Describe("Streets_ND")
justify = 35
print("------- System junction source")
#SDC network datasets do not have system junction source.
networktype = desc.networkType
if networktype.lower() == "sdc":
print("%*s" % (justify, "(No system junction source)"))
sys.exit(0)
#Get the system junction source for the network dataset.
sjSource = desc.systemJunctionSource
if not sjSource:
print("%*s" % (justify, "(No system junction sources)"))
sys.exit(0)
print("%*s: %s" % (justify, "Source Name" , sjSource.name))
print("%*s: %s" % (justify, "Source ID" , str(sjSource.sourceID)))
print("%*s: %s" % (justify, "Source Type", sjSource.sourceType))
print("%*s: %s" % (justify, "Element Type", sjSource.elementType))
print(" %*s: %s" % (justify, "Elevation Field",sjSource.elevationFieldName))
print(" ")