Find Gaps And Overlaps (Parcel)

Summary

Finds gaps and overlaps within parcel layers or between all input parcels. Gaps and overlaps that are found are represented as polygon features and are stored in an output feature class. The gap or overlap polygon feature matches the area of the gap or overlap.

Usage

• The .lyrx file used to symbolize the output is located at \arcgis\pro\Resources\ArcToolBox\Templates\Layers\ParcelFabricFindGapsAndOverlaps.lyrx.

• If the Detection Type parameter is set to Within and between layers, the ParcelInput1 and ParcelInput2 fields in the output feature class will be populated with the first two input parcel layer names that formed the gap or overlap, when possible.

Parameters

Dialog

Label	Explanation	Data Type
Input Parcel Features	The input parcel polygon layers. If multiple parcel polygon layers are specified, the tool will search for gaps and overlaps within each layer or between all input parcels.	Feature Layer
Output Feature class	The output polygon feature class containing the gap and overlap polygons. In the map, the gap polygons will be symbolized in green and overlap polygons will be symbolized in yellow.	Feature Class
Maximum Width (Optional)	The maximum width a gap or an overlap can be for it to be considered a gap or an overlap. Only gaps and overlaps that are smaller than the specified width will be included in the output feature class. The default width is 2 meters (6.56 feet).	Linear Unit
Detection Type (Optional)	Specifies whether the search for gaps will only be within parcel layers or within parcel layers and between all input parcels. Within layers—Gaps and overlaps will only be detected within each parcel layer. This is the default. Within and between layers—Gaps and overlaps will be detected within each parcel layer and between each parcel layer (all input parcels).	String

Python

arcpy.parcel.FindGapsAndOverlaps(in_parcel_features, out_feature_class, {maximum_width}, {detection_type})

Name	Explanation	Data Type
in_parcel_features [in_parcel_features,...]	The input parcel polygon layers. If multiple parcel polygon layers are specified, the tool will search for gaps and overlaps within each layer or between all input parcels.	Feature Layer
out_feature_class	The output polygon feature class containing the gap and overlap polygons. In the map, the gap polygons will be symbolized in green and overlap polygons will be symbolized in yellow.	Feature Class
maximum_width (Optional)	The maximum width a gap or an overlap can be for it to be considered a gap or an overlap. Only gaps and overlaps that are smaller than the specified width will be included in the output feature class. The default width is 2 meters (6.56 feet).	Linear Unit
detection_type (Optional)	Specifies whether the search for gaps will only be within parcel layers or within parcel layers and between all input parcels. WITHIN_LAYER—Gaps and overlaps will only be detected within each parcel layer. This is the default. BETWEEN_LAYERS—Gaps and overlaps will be detected within each parcel layer and between each parcel layer (all input parcels).	String

Code sample

FindGapsAndOverlaps example (Python window)

The following Python window script demonstrates how to use the FindGapsAndOverlaps function to find gaps and overlaps in the selected parcels in immediate mode. Gaps and overlaps between all selected parcels in the specified parcel layers will be detected.

import arcpy
arcpy.parcel.FindGapsAndOverlaps(
    ['Tax\\Tax', 'Conveyance Division\\Conveyance Division'], 'GapsOverlaps2',
    2, 'BETWEEN_LAYERS')

Environments

This tool does not use any geoprocessing environments.

Licensing information

• Basic: No
• Standard: Yes
• Advanced: Yes