Eliminates unwanted polygons (slivers) by merging them into the neighboring polygons.
A polygon feature layer
Attribute query - introduces a query builder. The user can select the
polygons to be eliminated using any query expression
Thickness ratio is expressed as a ratio of the polygon area versus the area of its
minimal bounding square. The ratio will have value of 1 for a square. The smaller the value
is, the thinner the polygon is. It is a good way of identifying thin polygons (possible
Circularity ratio - for a circle the circularity will be 1. The thinner the polygon is
the smaller the circularity will be. This is another way of identifying slivers
Join (Largest area) - will join selected polygons with neighboring polygons that
have the largest area
Join (Longest boundary) - will join selected polygons with neighboring
polygons with the longest common border .
Join to the neighbor with the same value in the selected field as the sliver polygon.
New polygon feature class with selected polygons eliminated.
Important! If the input layer has overlapping polygons, there might be some missing polygons in the output.
It is strongly recommended to use the Clean Polygons function before executing Eliminate.
Some of the very tiny slivers can be eliminated with the Clean
Polygon Wizard using appropriate value for Fuzzy tolerance, however eliminating larger
slivers using this method is not recommended since some unwanted approximation of the
polygon shapes might occur.
When using programatically the only selection method is Attribute Query. You can use the Polygon
Characteristics function to get values for Circularity and Thickness for each polygon and then execute the Eliminate Function using Attribute Query.