Cutbacks

Disponible avec une licence Data Reviewer.

Summary

The Cutbacks check finds polyline or polygon features that contain high-angle turns that cause features to turn back toward themselves.

Overview

The purpose of the Cutbacks check is to identify features that contain high-angle turns between vertices. These angles affect polyline and polygon features and can be created during editing and data conversion. Features that contain cutbacks impact length and perimeter calculations and analysis results.

When configured as a constraint rule, an error notification is returned upon creation or modification of a feature that contains one or more segments in which the angle between segments is below a specified minimum value.

When configured as a validation rule, an error is created during validation when a feature contains segments in which the angle between segments is below a specified minimum value.

Industry scenarios

The following examples highlight the impact that errors of this type represent:

• In topographic mapping, elevation contours that contain cutbacks impact cartographic products, feature labeling, and generalization workflows.
• In pipeline management, cutbacks on route features impact measurement values and the referencing of events along the route.

Supported workflows

ArcGIS Data Reviewer checks support multiple methods for implementing automated review of your data. The following table identifies the supported implementation methods for this check:

Validation			Constraint
Reviewer batch job	Reviewer map rule	Attribute (validation) rule	Yes
Yes	Yes	Yes

Syntax

Parameter	Required	Explanation	Workflow
Input Layers	Yes	The input feature layers evaluated by the rule. Valid inputs for this rule type are polyline and polygon feature layers. Click the Forward button to apply filtering to specific features in the feature layer.	Validation (map rules)
Subtype	No	The subtype that the rule is applied to if the dataset has subtypes.	Constraint
			Validation (attribute rules)
Attribute	No	A query that identifies the features to which the rule is applied.	Validation (attribute rules)
Minimum Angle Size	Yes	The minimum angle (in degrees) used to determine a cutback. Features with an angle between segments below this value are returned as an error.	Constraint
			Validation
Triggers	Yes	The editing events that trigger the rule to take effect. Insert—Triggers the rule when a new feature is added. Update—Triggers the rule when a feature is updated. Delete—Triggers the rule when a feature is deleted.	Constraint
Title/Name	Yes	A unique title or name for the rule. This information is used to support data quality requirement traceability, automated reporting, and corrective workflows.	Constraint
			Validation
Notes/Description	No	Descriptive text of the error condition when noncompliant features are found. This information is used to provide guidance to facilitate corrective workflows.	Constraint
			Validation
Severity	No	Severity of the error created when noncompliant features are found. This value indicates the importance of the error relative to other errors. Values range from 1 to 5, with 1 being the highest priority and 5 being the lowest.	Validation
Tags	No	Tag property of the rule. This information is used in rule authoring and management workflows to support traceability and reporting of data quality requirements.	Constraint
			Validation

Notes

• Polyline and polygon feature layers are supported with this check.
• The Attribute parameter is limited to comparison (=, <>, >, <, >=, <=) and logical (AND/OR, IN/NOT IN, LIKE/NOT LIKE, IS NULL) operators.
• When this check is authored as a map-based rule, verify that filter parameters using database-specific SQL functions are the same as from those supported in your production environment.