Attributes for Building Perimeters
The perimeter attributes in the buildings_perimeter shapefile are the following:
Area: The building area, in meters.
Perimeter: The building perimeter, in meters.
Length: The longest dimension of each building perimeter, in meters.
Width: The shortest dimension of each building perimeter, in meters.
Orientation: The angle offset from North, in degrees. This is the smallest angle at which the longest axis of the building perimeter is rotated to achieve the correct building orientation. A positive value indicates the building is rotated clockwise by that angle from the north/south direction. A negative value indicates the building is rotated counter-clockwise by that angle from the north/south direction.