Network Dataset properties (arcpy)
Zusammenfassung
The Describe function returns the following properties for Network Datasets. Dataset Properties are also supported.
A Network Dataset returns a dataType of "NetworkDataset".
A network dataset is used to model transportation networks.
Eigenschaften
| Eigenschaft | Erläuterung | Datentyp |
| networkType (Schreibgeschützt) |
The type of workspace containing the network dataset. This property returns the following keywords:
| String |
| supportsTurns (Schreibgeschützt) |
Indicates if the network dataset supports turns. | Boolean |
| isBuildable (Schreibgeschützt) |
Indicates if the network dataset can be built. SDC-based network datasets cannot be built as they are read-only. | Boolean |
| catalogPath (Schreibgeschützt) |
The path of the network dataset. | String |
| attributes (Schreibgeschützt) |
Returns a Python list of Network Attribute objects. | Object |
| edgeSources (Schreibgeschützt) |
Returns a Python list of Edge Source objects. | Object |
| junctionSources (Schreibgeschützt) |
Returns a Python list of Junction Source objects. | Object |
| turnSources (Schreibgeschützt) |
Returns a Python list of Turn Source objects. | Object |
| systemJunctionSource (Schreibgeschützt) |
Returns a System Junction Source object defined for the network dataset. This property is not available with SDC-based network datasets as they do not support system junction sources. | Object |
| supportsDirections (Schreibgeschützt) | Indicates if the network dataset supports generating directions. | Boolean |
| directions (Schreibgeschützt) |
Returns a Network Directions object defined for the network dataset. This object can be used to get directions information at the network dataset level. The directions property is available only if the supportsDirections property returns true. | Object |
| sources (Schreibgeschützt) |
Returns a Python list of Network Source objects. This property returns all the sources for the network dataset. If you want to get a list of particular source type—for example, only the edge sources—use the edgeSources property. | Object |
| elevationModel (Schreibgeschützt) | The network elevation model used to refine the connectivity of the network dataset. This property returns the following keywords:
| String |
| timeZoneAttributeName (Schreibgeschützt) | The name of the time zone attribute. If the network dataset does not support time zones, this property returns an empty string. | String |
| timeZoneTableName (Schreibgeschützt) | The name of the time-zone table that stores the list of time zones used by the network dataset. | String |
| supportsHistoricalTrafficData (Schreibgeschützt) | Indicates if the network dataset supports the use of historical traffic information. | Boolean |
| historicalTrafficData (Schreibgeschützt) | Returns an Historical Traffic Data object defined for the network dataset. This object can be used to get historical traffic information such as the historical traffic tables used by the network dataset. This property is available only if the supportsHistoricalTrafficData property returns true. | Object |
| supportsLiveTrafficData (Schreibgeschützt) | Indicates if the network dataset supports the use of live traffic information. | Boolean |
| liveTrafficData (Schreibgeschützt) | Returns a Live Traffic Data object defined for the network dataset. This object can be used to get the information about live traffic properties such as traffic feed name used by the network dataset. This property is available only if the supportsLiveTrafficData property returns true. | Object |
Codebeispiel
Display some network dataset properties.
# Name: NDSProperties_ex01.py
# Description: Print some of the network dataset properties.
import arcpy
# Set the workspace
arcpy.env.workspace = "C:/Data/Paris.gdb/Transportation"
# Create Describe object for the network dataset
desc = arcpy.Describe("ParisMultimodal_ND")
# Print general network dataset properties
print "Network type: " + desc.networkType
print "Supports turns? " + str(desc.supportsTurns)
print "Supports directions? " + str(desc.supportsDirections)
print "Is buildable? " + str(desc.isBuildable)
print "Elevation model: " + desc.elevationModel
print "Supports historical traffic data: " + str(desc.supportsHistoricalTrafficData)
print "Time zone attribute name: " + desc.timeZoneAttributeName
print "Time zone table name: " + desc.timeZoneTableName