In the original FormMapR, cells with missing elevations were
generally given values of zero or 1. However, in LITAP, they remain as
NA (missing) to more accurately reflect the nature of the
measurement.
Visual Comparison of Form
Original vs. New Facet A values
Note: All differences in convex,
concave and planar values are related to
form_mapper() differences in prof and plan which result
from rounding…