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Author: Jonathan McDowell 121 Library Ct. Phone: 503-723-4816 A critical aspect of enhancing a tax lot data layer with ARC COGO is the rectification of available ground control points to corresponding points in the coverage. This paper will explore two methods of selecting ground control features, one with traditional surveyed points and the other using high-resolution digital photography and photogrammetrics, and compare these methods in positional accuracy and precision. |
