Determining the Spatial Accuracy of Polygons Using Buffer Overlay

geoDemesne


This is the 7th post on on my paper “A Method for Determining and Improving the Horizontal Accuracy of Geospatial Features” Other posts on this topic:

6. Five Methods for Determining the Spatial Accuracy of Lines
8. The Final Solution

Buffer Overlay is a geospatial analysis technique that creates a buffer around a control line, the buffer is then used to clip a test line, the lengths of both lines are compared and if the test line is significantly shorter than the control a larger buffer is used. When test and control lengths are equal the test line can be said to be the size of the last buffer applied.

In our case the control is parcel line work and the test are permits. However, it is not practical to buffer the line work of an individual parcel and then clip the permits because not all parcels have permits. So we…

View original post 122 more words

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