NetworkQuery

Resumen

This object provides access to a network dataset's properties, attributes, attribute values, and elements.

Debate

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.

Propiedades

Propiedad	Explicación	Tipo de datos
networkName (Sólo lectura)	The name of the network.	String
sourceNames (Sólo lectura)	The names of the sources referenced by the network. This is of type string.	Iterable

Descripción general del método

Método	Explicación
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.

Métodos

attribute (attribute_name)

Parámetro	Explicación	Tipo de datos
attribute_name	The name of the network attribute.	String

Valor de retorno

Tipo de datos	Explicación
Attribute	An attribute object. If the attribute name is not found, None will be returned.

attributeUsage (attribute)

Parámetro	Explicación	Tipo de datos
attribute	The attribute ID as an attribute object.	Attribute

Valor de retorno

Tipo de datos	Explicación
AttributeUsage	An attribute usage enumeration.

attributeParameters (attribute)

Parámetro	Explicación	Tipo de datos
attribute	The attribute ID as an attribute object.	Attribute

Valor de retorno

Tipo de datos	Explicación
AttributeParameter	An iterable of attribute parameters.

fromJunction (edge)

Parámetro	Explicación	Tipo de datos
edge	The edge that will get the from junction.	Edge

Valor de retorno

Tipo de datos	Explicación
Junction	The from junction for the specified edge.

toJunction (edge)

Parámetro	Explicación	Tipo de datos
edge	The edge that will get the to junction.	Edge

Valor de retorno

Tipo de datos	Explicación
Junction	The to junction for the specified edge.

atJunction (turn)

Parámetro	Explicación	Tipo de datos
turn	An iterable consisting of turn with the first and second edges.	Turn

Valor de retorno

Tipo de datos	Explicación
Junction	The junction that connects the first and second edges of the turn.

turns (junction)

Parámetro	Explicación	Tipo de datos
junction	The junction that will get the turns.	Junction

Valor de retorno

Tipo de datos	Explicación
Turn	An iterable of turns for the specified junction where the junction connects the first and second edges of each turn.

edges (element)

Parámetro	Explicación	Tipo de datos
element	The element the edges are connected to. The element can be a junction or a turn.	Object

Valor de retorno

Tipo de datos	Explicación
Edge	An iterable of edges that are connected to the specified element.

edgePositions (edge)

Parámetro	Explicación	Tipo de datos
edge	The edge that will get the from and to positions.	Edge

Valor de retorno

Tipo de datos	Explicación
tuple	The from and to positions along the source feature for the specified edge. The tuple consists of float values.

edgeAzimuths (edge)

Parámetro	Explicación	Tipo de datos
edge	The edge that will get the from and to azimuths.	Edge

Valor de retorno

Tipo de datos	Explicación
tuple	The from and to azimuths for the specified edge. The tuple consists of float values.

sourceInfo (element)

Parámetro	Explicación	Tipo de datos
element	The element that will get the source information. The element can be a Junction, an edge, or a turn.	Object

Valor de retorno

Tipo de datos	Explicación
Integer	A tuple of network source ID and network source object ID.

attributeValue (element, attribute, time_usage, local_time)

Parámetro	Explicación	Tipo de datos
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. (El valor predeterminado es NetworkTimeUsage.Unused)	NetworkTimeUsage
local_time	The time that will be used with the specified element. (El valor predeterminado es None)	DateTime

Valor de retorno

Tipo de datos	Explicación
Object	The attribute value for a specified element at a given time. This could be an integer, a float or a boolean.