Georeferencing and 3D

 

Above is a map showing the University of West Florida Campus in relation to an eagles nest easement that was created. This area denoted by two shades of blue shows the conservation area of which no construction will be permitted for any future campus expansion. 

A major step in this map involved georeferencing two images in relation to a building shapefile. This step allows us to match a location on the ground to a location on the imagery. When you have enough points, it will stretch and move the imagery to align with the points. As you can see on the map above, both images have their RMS Error numbers listed. The lower the number the better, with anything under 15 generally being acceptable.

Below is the same features from the above map (minus the eagles nest) draped over a DEM file converted from LiDAR data. This allows us to view the campus in 3D, giving us a much better understanding of the campuses elevation.