Zusammenfassung
This object provides access to a network dataset's properties, attributes, attribute values, and elements.
Diskussion
A NetworkQuery object is provided as a parameter to the attach method, and other methods can use self.networkQuery to this object. A NetworkQuery object can be used to get various properties of a network dataset or query a network dataset for attributes, elements, and so on.
Eigenschaften
| Eigenschaft | Erläuterung | Datentyp |
| networkName (Schreibgeschützt) | The name of the network. | String |
| sourceNames (Schreibgeschützt) | The names of the sources referenced by the network. This is of type string. | Iterable |
Methodenübersicht
| Methode | Erläuterung |
| attribute (attribute_name) | Returns an attribute of the specified attribute name. |
| attributeUsage (attribute) | Returns the usage type of the specified attribute. |
| attributeParameters (attribute) | Returns the parameters of the specified attribute. |
| fromJunction (edge) | Returns the from junction for the specified edge. |
| toJunction (edge) | Returns the to junction for the specified edge. |
| atJunction (turn) | Returns the junction that connects the first and second edges of the turn. |
| turns (junction) | Returns the turns for the specified junction where the junction connects the first and second edges of each turn. |
| edges (element) | Returns the edges that are connected to the specified element. |
| edgePositions (edge) | Returns the from and to positions along the source feature for the specified edge. This method uses the digitization direction of the source feature. The values can range from 0.0 to 1.0 |
| edgeAzimuths (edge) | Returns the from and to azimuths for the specified edge. |
| sourceInfo (element) | Returns source information for the specified network element. |
| attributeValue (element, attribute, time_usage, local_time) | The attribute value for a specified element, with optional time. |
Methoden
attribute (attribute_name)
| Parameter | Erläuterung | Datentyp |
attribute_name | The name of the network attribute. | String |
| Datentyp | Erläuterung |
| Attribute | An attribute object. If the attribute name is not found, None will be returned. |
attributeUsage (attribute)
| Parameter | Erläuterung | Datentyp |
attribute | The attribute ID as an attribute object. | Attribute |
| Datentyp | Erläuterung |
| AttributeUsage | An attribute usage enumeration. |
attributeParameters (attribute)
| Parameter | Erläuterung | Datentyp |
attribute | The attribute ID as an attribute object. | Attribute |
| Datentyp | Erläuterung |
| AttributeParameter | An iterable of attribute parameters. |
fromJunction (edge)
| Parameter | Erläuterung | Datentyp |
edge | The edge that will get the from junction. | Edge |
| Datentyp | Erläuterung |
| Junction | The from junction for the specified edge. |
toJunction (edge)
| Parameter | Erläuterung | Datentyp |
edge | The edge that will get the to junction. | Edge |
| Datentyp | Erläuterung |
| Junction | The to junction for the specified edge. |
atJunction (turn)
| Parameter | Erläuterung | Datentyp |
turn | An iterable consisting of turn with the first and second edges. | Turn |
| Datentyp | Erläuterung |
| Junction | The junction that connects the first and second edges of the turn. |
turns (junction)
| Parameter | Erläuterung | Datentyp |
junction | The junction that will get the turns. | Junction |
| Datentyp | Erläuterung |
| Turn | An iterable of turns for the specified junction where the junction connects the first and second edges of each turn. |
edges (element)
| Parameter | Erläuterung | Datentyp |
element | The element the edges are connected to. The element can be a junction or a turn. | Object |
| Datentyp | Erläuterung |
| Edge | An iterable of edges that are connected to the specified element. |
edgePositions (edge)
| Parameter | Erläuterung | Datentyp |
edge | The edge that will get the from and to positions. | Edge |
| Datentyp | Erläuterung |
| tuple | The from and to positions along the source feature for the specified edge. The tuple consists of float values. |
edgeAzimuths (edge)
| Parameter | Erläuterung | Datentyp |
edge | The edge that will get the from and to azimuths. | Edge |
| Datentyp | Erläuterung |
| tuple | The from and to azimuths for the specified edge. The tuple consists of float values. |
sourceInfo (element)
| Parameter | Erläuterung | Datentyp |
element | The element that will get the source information. The element can be a Junction, an edge, or a turn. | Object |
| Datentyp | Erläuterung |
| Integer | A tuple of network source ID and network source object ID. |
attributeValue (element, attribute, time_usage, local_time)
| Parameter | Erläuterung | Datentyp |
element | The element that the attribute value will be applied to. The element can be an edge, a junction, or a turn. | Object |
attribute | The attribute that the value will be applied to. | Attribute |
time_usage | The time usage type. (Der Standardwert ist NetworkTimeUsage.Unused) | NetworkTimeUsage |
local_time | The time that will be used with the specified element. (Der Standardwert ist None) | DateTime |
| Datentyp | Erläuterung |
| Object | The attribute value for a specified element at a given time. This could be an integer, a float or a boolean. |