198 articles Terrasolid Tools, Tips and Workflows Page 2 / 20

TerraScan Raster Backdrop

If you choose to load backdrop images while editing in TerraScan (while through GeoCue’s Process in TerraScan, DirectDrive, or directly in MicroStation’s Raster Manager) and your images show up in the wrong place relative to your LAS points, MicroStation’s Raster Manager may be interpreting your TFW (sister file) or coordinates incorrectly.  Raster Manager defaults the…

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TerraScan Display Modes

TerraScan provides users with many different methods of visualizing their point cloud data. These modes are based upon one or more attributes of the point data and each have their own uses. Some examples are herein provided. The Display Mode dialog (TerraScan -> View -> Display Mode) is how you access the current various modes.…

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TerraScan: Range Classification with Terrestrial Scanner Data

Recently, a customer had a question about using the ‘Classify by Range’ (TerraScan -> Classify -> Routines -> Classify by Range) classification routine with terrestrial scanner (tripod-mounted static scanner) data.  This tool classifies points based upon each point’s respective range from the scanner’s position at the moment of collection.  This tool was designed to improve…

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Raster Bit Depth

GeoCue, Terrasolid and LP360 can all output Raster files with different Bit Depths. The bit depth (sometimes called pixel depth) of a cell determines the range of values that a particular raster file can store, which is based on the formula 2n (where n is the bit depth). For example, an 8-bit raster can have…

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TerraScan Key-in Commands

Most of the tools in TerraScan can be started by entering a key-in command in the MicroStation Key-in line. The Browse Key-in option of the Key-in line can be used to find out the syntax of a key-in command. To bring up the key-in dialog press enter in an active MicroStation view window. If you…

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How to define parameters for a key-in command?

Many of the key-in commands in the Terrasolid products do not have any parameters defined for them by which you can modify the values on the tool settings dialog when invoking the command. However, the variables in the tool settings box can be captured by recording a macro and saving them as a VBA script.…

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How to remove point data that doesn’t have any corresponding trajectory information?

The best workflow to use to remove the point data for which you do not have trajectories is to: Modify line numbering to set all points to have the same line number, say 999. Deduce using time to assign flight line numbers from the trajectories to the points. Delete those points that remain in line…

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Threading in TerraScan, TerraMatch and TerraPhoto

Most customers run a processor with four cores, high quality models today have eight cores . Each core supports a maximum of two threads. TerraScan (TerraSlave ) currently supports a maximum of 128 threads. To benefit from all threads you should have a PC with eight processors with eight cores. If you are a standard…

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TerraModeler: Automating Volumetric Reporting

When producing volume reports, TerraModeler, as with all Terrasolid software follows a convention of producing ASCII reports. These reports can then be easily integrated into formats desired to produce respectable deliverable reports. In the case of volume reporting, TerraModeler supports a nice and easy reporting method using an external application that replaces multiple values in…

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