uniDEM supports statistical analysis of the loaded Lidar geometry and LAS metadata.
Geometry Profile
Calculates positional statistics within the selected region (if polygon or rectangle drawn), or all selected dataset layers if no selection.
Number of points in the analysis
Mean (average) for X, Y and Z coordinates
Minimum X, Y and Z coordinates
Maximum X, Y and Z coordinates
Standard deviation for the X, Y and Z coordinates
Default shortcut: none
Class Profile
Calculates LAS classification statistics about the selected region (if polygon or rectangle drawn) or all selected dataset layers if no selection.
The statistic include the total point count and a listing of all las classes within the selected region.
Each class includes a count of the points of that class type and the corresponding percentage of the points that that class constitutes.
Default shortcut: none
Metadata Profile
Calculates LAS metadata statistics about the selected region (if polygon or rectangle drawn) or all selected dataset layers if no selection.
The statistics can be generated for any available metadata field for LAS and LAZ files for versions 1.0, 1.2, 1.3 and 1.4.
The statistic include the total point count and a listing of all las classes within the selected region.
Each class includes:
Count - number of points for the selected metadata field
Non-Zero Count - Number of points for the selected metadata field that are not zero. Useful for viewing the number of points that have the overlap or withheld flag set
Mean value - average of the metadata field being profiled
Standard deviation - standard deviation value of the metadata field being profiled
Minimum - value of the metadata field being profiled
Maximum - value of the metadata field being profiled
A histogram indicating the distribution of the metadata values
uniDEM