Calibrate IMU and Compass after updating new firmware for AV900 If AV900’s firmware is updated, it’s recommended that the IMU and compass should be re-calibrated. Here are the step-by-step instructions to re-calibrate them: Prepare the Drone Insert and secure the battery into the AV900 Raise and secure the GPS/Compass (fig. 1) Figure 1. The GPS/Compass must be…
When using the Link to waveform command, an index file is created that speeds up some further processing steps when the waveform is required. In the waveform field of the Trajectory information dialog, wildcards can be used to link several waveform files to one trajectory. Example: Files name, “Laser_20160204_074422_FL17.las”, where the FLXX is the line…
For those of you that process mobile LIDAR data, it can be necessary to filter out the points that represent moving cars. This can be accomplished using the Classify Moving Objects routine. This tool classifies groups of points that are captured from moving objects. It can be used for mobile laser data sets. The routine requires…
The settings in TerraScan (TerraScan->General Toolbar->Settings) can be configured to make some processes easier and more suited to typical uses leading to a more productive workflow. Settings may be shared with multiple users via a network location. It is recommended to leave the folder read only for most users to prevent undesired changes. Operation Settings…
This workflow explains how to create a redline in Reckon. Redlining provides the ability to create, edit and publish geometries with attributes. Redlines can be used to communicate work to be done with a service provider (i.e. defining stockpiles to be analyzed), edit existing features, create new features and can be downloaded as ESRI shape…
Moving objects routine classifies groups of points that are captured from moving objects. It can be used for mobile laser data sets. The routine requires that data from multiple lines or scanners is available. The routine classifies groups of points that are captured at one moment of time and at another moment of time, when…
Assign groups command assigns a group number to points of one or more classes. The grouping is done based on different methods, such as plane fitting, watershed algorithm, or 3D spacing between points. The group assignment relies on a distance from ground value that must be computed for the points before the command is started.…
Compute normal vectors command can be used to compute and store two additional attributes for laser points, a dimension and a normal vector. The software determines the dimension of each point by analyzing the point and its closest neighbour points. There are three types of dimensions: •Linear – points form a linear feature. •Planar –…
Displaying points ‘by distance’ using TerraScan (version 016.022 and later) for MicroStation CONNECT is different then previous versions. You will notice that the Display Mode option for distance is grayed out. This is because TerraScan no longer calculates distances on-the-fly. Instead, the Compute Distance command is used to make these measurements and stores that information as…
