Trim. The range of a modern terrestrial laser scanner is several tens or hundreds metres. In a forest environment a point is often recorded in distance greater than 100 metres from a scanner position. A density of the point cloud decreases rapidly with an increasing distance from a scanner. The Trim module extracts points from the scanned area with the highest density of points. Distributions of points along main coordinate axes are calculated. A specified percentages of points are dropped from each side along axes. For example, if 2.5% is specified for x-axis, then a new extent in x-direction will contain 95% of points. Tails of point cloud, which are distant and have a low density of points are removed. Example:
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Sources: End User License Agreement, End User License Agreement, End User License Agreement