LastMileDeliveryResult

Summary

An object containing the results of a last mile delivery analysis that can be used to access outputs and solver messages.

Discussion

Instances of this class cannot be created directly. Instead, they are returned by the solve method of the LastMileDelivery class.

Learn more about how to use the result object to access and work with the analysis outputs

Properties

Name	Explanation	Data type
isPartialSolution (Read only)	Returns `True` if the solver produced a partial solution, meaning that not all inputs were included in the results. This can occur if one of the inputs is unlocated and the solver class's `ignoreInvalidLocations` property is set to `True`.	Boolean
solveSucceeded (Read only)	Returns `True` if the solve was successful.	Boolean
spatialReference (Read only)	Returns the spatial reference of the output features. For example, feature classes created using the `export` method and geometry objects retrieved from the `searchCursor` method will have this spatial reference. The `spatialReference` value is typically the spatial reference of the network dataset or service used in the analysis.	SpatialReference

Methods

`count(output_type)`

Returns the number of rows for an output type.

Name Explanation Data type

Name	Explanation	Data type
output_type	The type of output features to count. Set this parameter using the `LastMileDeliveryOutputDataType` enumeration.	Object

output_type

The type of output features to count.

Set this parameter using the LastMileDeliveryOutputDataType enumeration.

Object

Return value

Data type	Explanation
Integer	The number of rows.

`export(output_type, output_features)`

Exports the analysis results to a feature class or table.

The output features will be created in the spatial reference of the network dataset used for the analysis. If the arcpy.env.outputCoordinateSystem environment is set, the output features will be created with the specified coordinate system instead.

Name Explanation Data type

Name	Explanation	Data type
output_type	The type of output to export. Set this parameter using the `LastMileDeliveryOutputDataType` enumeration. Learn more about the fields included in each output type	Object
output_features	The catalog path to the output feature class or table that will contain the exported features.	String

output_type

The type of output to export.

Set this parameter using the LastMileDeliveryOutputDataType enumeration.

Learn more about the fields included in each output type

Object

output_features

The catalog path to the output feature class or table that will contain the exported features.

String

`extent({output_type})`

Returns the extent of the analysis output.

The method returns a RuntimeError exception if the analysis solve failed.

Name Explanation Data type

Name	Explanation	Data type
output_type (Optional)	The type of output features for which to get the extent. Set this parameter using the `LastMileDeliveryOutputDataType` enumeration. If you do not specify a value, or you specify a value of `None`, the extent for the combined analysis outputs is returned.	Object

output_type

(Optional)

The type of output features for which to get the extent.

Set this parameter using the LastMileDeliveryOutputDataType enumeration.

If you do not specify a value, or you specify a value of None, the extent for the combined analysis outputs is returned.

Object

Return value

Data type	Explanation
Extent	An `arcpy.Extent` object indicating the extent of the designated output type.

`fieldNames(output_type)`

Returns a list of field names supported by a specified output type.

Name Explanation Data type

Name	Explanation	Data type
output_type	The type of output for which to return a list of field names. Set this parameter using the `LastMileDeliveryOutputDataType` enumeration. Learn more about the fields included in each output type	Object

output_type

The type of output for which to return a list of field names.

Set this parameter using the LastMileDeliveryOutputDataType enumeration.

Learn more about the fields included in each output type

Object

Return value

Data type	Explanation
String	A list of field names supported by the specified output type.

`saveAsLayerFile(file_name)`

Saves the analysis result and settings to a network analysis layer package. The layer package can be opened in ArcGIS Pro as a record of the analysis settings or to visualize the results.

The method returns a RuntimeError exception if the allowSaveLayerFile property on the solver object is set to False.

Name	Explanation	Data type
file_name	The catalog path of the output layer package (`.lpkx` file). Note: Layer files with an `.lyr` extension are not supported for last mile delivery analyses.	String

`saveRouteData(file_name)`

Save the outputs from the analysis to a .zip file. The .zip file can be used to share the routes from the analysis as route layer items in ArcGIS Online or ArcGIS Enterprise using the Share As Route Layers tool.

A route layer item can be used by various applications, such as ArcGIS Navigator to provide route guidance for mobile workers, the Directions pane in Map Viewer Classic to further customize the route contained in the route layer, and ArcGIS Pro to create a route analysis layer from a route layer.

The output features will be created in the spatial reference of the network dataset used for analysis. If the arcpy.env.outputCoordinateSystem environment has been set, the output will be created in that spatial reference instead.

If the solve fails, saveRouteData returns a RuntimeError exception.

The method returns a RuntimeError exception if the allowSaveRouteData property on the solver object is set to False.

Name	Explanation	Data type
file_name	The full path of the output `.zip` file.	String

`searchCursor(output_type, field_names[field_names,...], {where_clause})`

Establishes a search cursor on the specified output type. This cursor can be used to read rows directly from the output.

Name Explanation Data type

Name	Explanation	Data type
output_type	The type of output that will be read. Set this parameter using the `LastMileDeliveryOutputDataType` enumeration.	Object
field_names[field_names,...]	A list of field names of the output type whose values will be returned by the cursor. You can get the names of the fields supported by an output type using the `fieldNames` method. Learn more about the fields included in each output type In addition to regular fields, you can also access the geometry of the output using one of the following geometry tokens: SHAPE@XY—A tuple of the feature's centroid's x- and y-coordinates. SHAPE@XYZ—A tuple of the feature's centroid's x-, y-, and z-coordinates. SHAPE@JSON—The Esri JSON string representing the geometry. SHAPE@WKB—The well-known binary (WKB) representation for OGC geometry. It provides a portable representation of a geometry value as a contiguous stream of bytes. SHAPE@WKT—The well-known text (WKT) representation for OGC geometry. It provides a portable representation of a geometry value as a text string. SHAPE@—A geometry object for the feature. The `SHAPE@XY` and `SHAPE@XYZ` tokens are only supported for point-based output types. The x-, y-, and z-values returned when using the `SHAPE@XY` and `SHAPE@XYZ` tokens are in the spatial reference reported by the solver result object's `spatialReference` property, and this is typically the same as the spatial reference of the network data source used for the analysis.	String
where_clause (Optional)	An optional expression that limits the records returned. For more information on WHERE clauses and SQL statements, see SQL reference for query expressions used in ArcGIS. The default value is None.	String

output_type

The type of output that will be read.

Set this parameter using the LastMileDeliveryOutputDataType enumeration.

Object

field_names[field_names,...]

A list of field names of the output type whose values will be returned by the cursor. You can get the names of the fields supported by an output type using the fieldNames method.

Learn more about the fields included in each output type

In addition to regular fields, you can also access the geometry of the output using one of the following geometry tokens:

SHAPE@XY—A tuple of the feature's centroid's x- and y-coordinates.
SHAPE@XYZ—A tuple of the feature's centroid's x-, y-, and z-coordinates.
SHAPE@JSON—The Esri JSON string representing the geometry.
SHAPE@WKB—The well-known binary (WKB) representation for OGC geometry. It provides a portable representation of a geometry value as a contiguous stream of bytes.
SHAPE@WKT—The well-known text (WKT) representation for OGC geometry. It provides a portable representation of a geometry value as a text string.
SHAPE@—A geometry object for the feature.

The SHAPE@XY and SHAPE@XYZ tokens are only supported for point-based output types. The x-, y-, and z-values returned when using the SHAPE@XY and SHAPE@XYZ tokens are in the spatial reference reported by the solver result object's spatialReference property, and this is typically the same as the spatial reference of the network data source used for the analysis.

String

where_clause

(Optional)

An optional expression that limits the records returned. For more information on WHERE clauses and SQL statements, see SQL reference for query expressions used in ArcGIS.

The default value is None.

String

Return value

Data type	Explanation
Object	A `SolverResultSearchCursor` object that reads rows from the output.

`solverMessages(severity)`

Get error, warning, and informational messages returned by the solver.

Name Explanation Data type

Name	Explanation	Data type
severity	The type of messages to be returned. The parameter should be specified using the `MessageSeverity` enumeration.	Object

severity

The type of messages to be returned.

The parameter should be specified using the MessageSeverity enumeration.

Object

Return value

Data type Explanation

Data type	Explanation
List	The messages are returned as a list of lists. The inner list contains two values; the first is a number representing the message code, and the second value is the message text. An example of a list of messages returned from a failed origin destination cost matrix analysis. `[[-2147200995, '0 location(s) in "Destinations" are valid. Need at least 1 valid location(s).'], [30024, 'Solve returned a failure.'], [-2147200995, 'Insufficient number of valid locations in "Origins" or "Destinations".']]`

List

The messages are returned as a list of lists. The inner list contains two values; the first is a number representing the message code, and the second value is the message text.

An example of a list of messages returned from a failed origin destination cost matrix analysis.

[[-2147200995, '0 location(s) in "Destinations" are valid.  Need at least 1 valid location(s).'],
 [30024, 'Solve returned a failure.'],
 [-2147200995, 'Insufficient number of valid locations in "Origins" or "Destinations".']]

LastMileDeliveryResult

Summary

Discussion

Properties

Methods

count(output_type)

Return value

export(output_type, output_features)

extent({output_type})

Return value

fieldNames(output_type)

Return value

saveAsLayerFile(file_name)

Note:

saveRouteData(file_name)

searchCursor(output_type, field_names[field_names,...], {where_clause})

Return value

solverMessages(severity)

Return value

`count(output_type)`

`export(output_type, output_features)`

`extent({output_type})`

`fieldNames(output_type)`

`saveAsLayerFile(file_name)`

`saveRouteData(file_name)`

`searchCursor(output_type, field_names[field_names,...], {where_clause})`

`solverMessages(severity)`