TerraScan User Guide

Classification Routines

The Routine sub-menu in the Classify pulldown menu of the TerraScan window offers a number of classification routines that effect or rely on points.

The Classify sub-menu in the Group pulldown menu of the TerraScan window contains classification routines that effect or rely on groups of points.

In addition, there are some classification routines which can be used in macros only. This Chapter describes the basic logic used in the classification routines.

In TerraScan Lite, only a small selection of classification routines is available.

•Points

oAir points

oBelow surface

oBuildings

oBuilding Surfaces

oBy absolute elevation

oBy angle

oBy centerline

oBy class

oBy channel

oBy color

oBy deviation

oBy distance

oBy echo

oBy echo difference

oBy echo length

oBy extra attribute

oBy height from ground

oBy intensity

oBy normal vector

oBy polygons

oBy range

oBy reliability

oBy scan direction

oBy scanner

oBy section template

oBy time stamp

oBy vegetation index

oCloseby points

oContour keypoints

oDominant surface

oGround

oHard surface

oIsolated points

oLinear Features

oLow points

oModel keypoints

oRailroad

oSurface points

oTop surface

oTunnel surfaces

oWalls

oWater surface

oWindow reflections

oWire danger points

•Groups

oBy best match

oBy centerline

oBy class

oBy distance

oBy parameters

oUsing library model

oUsing trained model

oBy vegetation index

oMoving objects

oOne point in group

oNon-grouped points

oTrees