About Extracting Point Densities and Area
You may export point density and the area used to calculate those density
values. There are two types of point densities to export; an overall
point density and if grouping by an
attribute,
the density related to only those points within a unique value of
the grouping attribute. The calculated area value is the area of the
polygon or envelope geometry used to collect points within the point
cloud. The density is calculated by dividing the number of points
by the area to create units of points per square map units. The following
outlines the types of point densities and their respective field names:
- Point Density (PntDen): the point density using the point count
total.
- Point Density per group attribute value: if grouping by an
attribute such as classification, the density for each unique
group value is exported. The field name for these values begin
with the grouping attribute code (CL, PS,
RN, NR, or UD)
then 'Den' for density and the unique value. For example the point
density for class 2 would be reported in the field called 'CLDen_2'.
- Areas (SumArea): the area of
the geometry used to summarize points in squared map units.
