Point to Polygon Attribute Compare
The Point to Polygon Attribute Compare quality control (QC Quality Control) check scans for an attribute Nonspatial information about a geographic feature in a GIS, usually stored in a table and linked to the feature by a unique identifier. For example, attributes of a river might include its name, length, and sediment load at a gauging station. mismatch between the point feature and the polygon it intersects, comparing the values in user designated fields to make sure they match.
Required QC Prerequisites
To run this check, the following prerequisites are required.
- A point feature class with attribution
- A polygon feature class with attribution such as Municipal, EMS Emergency Medical Service. Response centers for services such as ambulance, fire department, hospital, and poisen control center., Law, Fire, ESZ Emergency Service Zone. A geographic area served by a unique set of law, fire, and medical responders, identified by an ESN., PSAP Public Safety Answering Point. A set of call takers authorized by a governing body and operating under common management which receives 9-1-1 calls and asynchronous event notifications for a defined geographic area and processes those calls and events according to a specified operational policy., County, or State fields
Configure QC Parameters
Configurations for QC check parameters contain filters to prevent selecting incompatible field types.
The following parameters can be specifically configured for the Point to Polygon Attribute Compare QC check.
- Run On: Non-configurable. This QC check inspects the target dataset.
- Severity: Sets the importance level of this QC check’s fallouts. Critical fallouts prevent export package outputs but will still provide fallouts.
- Point Layer Name: The name of the point layer this QC check should inspect.
- Reporting Unique ID: A unique identifier in the layer that can be used to uniquely identify a singular feature.
- Point Attribute to Compare: The field in a point feature to be compared against the intersecting polygon.
- Polygon Layer Name: The name of the polygon layer this QC check should inspect. For example: County_Boundary or PSAP_Boundary.
- Polygon Attribute to Compare: The polygon field to be compared against the intersecting point.
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Inspection Criteria: Select if all points should be inspected or only those within a polygon boundary. By default, Inspect all points in my layer is selected.
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Inspect Only Points Covered by a Polygon. Select this option to have the QC check ignore all points that are not covered by a polygon boundary configured in the QC check.
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Inspect All Lines in my Layer. Select this option to have the QC check scan all points in this layer and flag points not covered by a boundary.
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Case Sensitivity: Select Match Case to enable and maintain the integrity of upper or lower case text in your data. See Case Sensitivity.
What Does the Point to Polygon Attribute Compare QC Check Output Include?
The following information is included for this QC check's fallout output.
- QC check name
- Description of the QC check
- Unique feature ID
- Identifier of the point that fails the comparison
- Extended information providing more details about the fallout
- Latitude and longitude of the fallout's location
Examples - Fallout Report Records
The example below shows a possible error message you may receive when a record fails the Point to Polygon Attribute Compare QC check. The extended information provides the detected and expected results when comparing the polygon's attribute against the point layer's attribute for the chosen field.
Examples - Issues Reported
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In this example, the feature was expected to not have a value.
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In this example, the feature failed an attribute comparison with an intersecting polygon (expected "WASHINGTON", result "SPRINGFIELD").
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In this example, the feature intersects multiple polygons.
