Edge Matching & Coverage Joins

 

Introduction

Objectives

Methodology

Analysis

Error Issues

Results

 

To make sure that there were no missing polygons or arcs between coverage boundaries, each coverage was digitized so that there was slight overlap between each (measured as 1 inch of overlap on the base map).  Once the overlapped edges were assessed for accuracy, they were clipped away so that edge-matching and joining procedures could be done, combining the three separate coverages into one.  Once joined, the adjacent polygon borders containing the same feature attribute values were dissolved, creating the final coverage, entire.

Click to see large graphic of 'entire'