Convert M-Value Units Of Measure (Roads and Highways)
Récapitulatif
Converts the measure (m) values of a dataset from one unit to another. The m-values of the input dataset are modified upon executing this tool.
Utilisation
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This tool is used for the HPMS 2012 models.
Remarque :Any uncalibrated routes in the network get an m-value of zero (0) after executing this tool; therefore, you should calibrate all the routes in the network prior to running this tool.
For more information on calibrating a route, please see Calibrate a route.
Syntaxe
| Paramètre | Explication | Type de données |
in_network |
The source network feature. | Feature Layer |
in_source_unit_of_measure |
The unit of measure of the source network layer. | Linear unit |
in_target_unit_of_measure |
The unit of measure the source network layer values will convert to. | Linear unit |
in_precision |
The number of decimals for the target units. | Long |
Exemple de code
The following script demonstrates how to use the Convert M value Units of Measure function in immediate mode.
# tool variables
in_network="network_lyr"
in_source_unit_of_measure="feet"
in_target_unit_of_measure="miles"
in_precision="3"
# set current workspace
arcpy.env.workspace="C:/Data/NY_Data.gdb/LRSN_MilePoint"
# execute the tool
arcpy.ConvertMValueUnitsOfMeasure_roads("network_lyr", "Feet", "Miles", "3")
The following python script demonstrates how to use Conver M value Units of Measure in a stand alone python script.
# Name: ConvertM-ValueUnitsOfMeasure.py
# Description: Converts the measure (m) values of a dataset from one unit to another. The m-values of the input dataset are modified upon executing this tool.
# Requires: Esri Roads and Highways Solution
# Import arcpy module
import arcpy
# Check out any necessary licenses
arcpy.CheckOutExtension("Highways")
# Local variables:
network = r"C:/Data/NY_Data.gdb/LRSN_MilePoint"
# Make a feature layer for network
arcpy.MakeFeatureLayer_management(network, "network_lyr")
# Process: Convert M-value Units Of Measure
arcpy.ConvertMValueUnitsOfMeasure_roads("network_lyr", "Feet", "Miles", "3")