Create a new table join between the original shapefile and the newly created shapefile output from the Dissolve tool using the unique ID field from Step 2.Repeat Steps 2 through 4 with the output of Step 5.Įnsure the two fields selected in the Field Calculator for the new shapefile are identical to the fields selected in Step 4 the original polygon shapefile.Optionally, select the desired statistical fields.Selecting a folder for Output creates a new shapefile for the dissolved polygon. For Output, ensure that a folder is selected, not a geodatabase.For Input, select the desired polygon shapefile.Navigate to ArcToolbox > Data Management Tools > Generalization > Dissolve.The unique ID value is the identifier that distinguishes the specific field for the Dissolve tool to remove. Select two or more fields from the original polygon shapefile, and use the '&' operator to populate the field with unique values > click OK.While in an Edit Session, right-click the newly created unique ID field and select the Field Calculator.Create a new Text field for storing unique ID values.In Table of Contents, right-click the original polygon shapefile > Open Attribute Table.If a file geodatabase feature class is used, the join includes duplicate records. This workflow describes the use of shapefiles. The following steps describe how to delete overlapping sections of polygons based on a field using the Dissolve tool: Note: However, at the Basic and Standard licensing level, the Eliminate Polygon Part tool is not available, use the Dissolve tool instead. For more information, refer to ArcGIS Help: Eliminate Polygon Part.
ARCGIS 10.3 MAKE JOIN PERMANANT LICENSE
For example, attempting to isolate specific polygons from a shapefile containing many overlapping polygons.Īt the Advanced license level, the Eliminate Polygon Part tool is available. In some instances, when working with large volumes of multiple overlapping polygons, attempts to isolate and delete specific overlapping sections of polygons based on a specific field can be tedious and time consuming. How To: Delete overlapping sections of polygons based on a field Summary
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