When do polygons of the same group have the same field?
Polygons of the same group have the same set of field values. When you need to find the neighbors of each individual polygon in the input, specify an input field that has a unique value for every polygon. In this example, the input table of the nine polygons has a field myCode, which has a unique value for every individual polygon.
How do you find the neighbors of a polygon?
To find the neighbors of each individual polygon in the input, specify one or more input fields that result in a unique value or set of values (in the case of multiple fields) for every polygon. If the specified fields identify unique polygon groups, the neighboring information is summarized and reported by the groups.
What is the coincident length of polygon 4?
Polygon 4 has a coincident edge with polygon 1; the coincident length of the edge, 100, is written in the LENGTH field. Polygon 5 has a coincident edge with polygon 1; the length of the coincident edge, 20, is written in the LENGTH field.
What happens when polygon 2 overlaps polygon 1?
Polygon 2 overlaps polygon 1; the area of overlap, 1600, is written in the AREA field. The analysis of edge and node neighbors is skipped even though polygon 2 has a coincident edge with polygon 1 and crosses it at a point. Therefore, the fields LENGTH and NODE_COUNT get a value of 0.
How to merge adjacent polygons in edit tools and control?
1) Display the polygon coverage to edit in Edit Tools. 2) On the Edit Polygons menu, click Merge. 3) Select two adjacent polygons. The new polygon will have the attributes of the last polygon selected.
How are the neighbors of a polygon defined?
The neighboring relationships are defined as follows: Overlapping neighbors—polygons that have all or part of their areas overlapping Edge neighbors—polygons that have common or touching boundaries Node neighbors—polygons that touch at a point (boundary crossing or touching)