The total number of laser points always is huge. To read all points at the same time for processing exceeds easily the memory limits of the Windows operating system. To avoid such bottlenecks TerraScan let you divide data sets into smaller geographical blocks, which you can freely draw by MicroStation tools. First round of processing takes palace by user-defined macros. After this automatic processing data is classified to point classes like ground, vegetation, trees and buildings. Automatic processing is sufficient to many purposes but if one likes to get perfect classification, then manual classification is necessary.
Each TerraScan license is accompanied by a license for TerraSlave. TerraSlave frees your working with MicroStation to do any other jobs.
TerraScan reads-in raw laser points as XYZ text files or binary files like LAS and TerraScan binary. The key-features of TerraScan are as follows:
- Reads-in raw laser points as XYZ text or binary files like LAS and TerraScan binary
- View the points three dimensionally
- Define your own point classes such as ground, vegetation and buildings
- Classify the points into ground, vegetation, buildings etc.
- Dvide points into blocks
- Automate processing by defining macros
- Classify points using automatic routines
- Delete unnecessary or erroneous points in a fenced area
- Remove unnecessary points by thinning
- Digitize features by snapping onto laser points
- Detect power line wires and planar building roofs
- Export elevation of points as coloured raster images
- Project points into profiles
- Output classified points as text files
With transmission line data, TerraScan can:
- Classify ground and vegetation separately
- Detect catenaries using least squares fitting
- Compute catenary equations
- Thin ground points
- Pass ground points to TerraModeler for surface modelling
- Output reports from computed data.