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Geoprocessing tool reference > Environment Settings > Geodatabase settings

Output M domain
Release 9.3 Last modified December 17, 2008	Print all topics in : "Geodatabase settings"

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Allowable coordinate range for m- (measure) values.

Usage tips

Unlike XY and Z domains, the M domain of a feature class inside a feature dataset is not constrained to match the feature dataset's M domain. For feature classes created inside a feature dataset, the feature dataset's M domain is used as the default. To override this default, set the M Domain environment to the desired range.

If the M Resolution environment is set as well as the M Domain environment, the resolution value is used in combination with the domain's minimum value.

It is recommended that you use the M Resolution in conjunction with the M Domain environment to avoid creating a dataset with extremely small resolution value. Extremely small resolution value can lead to a deterioration of performance.

The keyword used at the command line or in scripts for this environment setting is MDomain.

Command line syntax

Parameters	Explanation	Data type
<value>	Allowable coordinate range for m- (measure) values. The M domain requires the following values: M Min—Minimum m-value M Max—Maximum m-value	String

MDomain "9689921.98576562 27282108.0219896"

Scripting syntax

Parameters	Explanation	Data type
value (Required)	Allowable coordinate range for M-values. The M domain requires the following values: M Min—Minimum m-value M Max—Maximum m-value	String

import arcgisscripting
gp = arcgisscripting.create()
gp.MDomain = "27282108.0219896 27282108.0219896"

Output M domain