CalculateTolerances

Title  Calculate Tolerances and Resolutions

Description

Calculate the XY, Z, and M tolerances based on a measure unit for systems that will use a linear referencing system (LRS).

Usage

          
Specify the spatial reference and the unit of measure for the M values.
The tolerances are printed as geoprocessing messages. These values should be entered when defining the spatial reference of the feature dataset.


License
Basic
Extensions
Location Referencing
Toolset
APR

Syntax

CalculateTolerances (spatial_reference, {measure_unit})

Parameter Explanation Data Type
spatial_reference Dialog Reference

The spatial reference of the dataset.

 		GPSpatialReference
measure_unit (Optional) Dialog Reference

Unit of measurement for the M values.

 		GPString

Code Samples

CalculateTolerances example 1 (Python window) 

Calculate resolutions and tolerances for metric units.

import arcpy

arcpy.udms.CalculateTolerances(3457, "METERS")

CalculateTolerances example 2 (stand-alone script) 

Calculate resolutions and tolerances for metric units.

import json

import arcpy

spatial_reference = arcpy.SpatialReference(3457)  # Louisiana SPCS South
units = "METERS"

result = arcpy.udms.CalculateTolerances(
    spatial_reference=spatial_reference,
    measure_unit=units,
)

# For programmatic access, the tolerances are resolutions are returned as JSON.
res = json.loads(result[0])
for k, v in res.items():
    print(f"{k}\t{v}")