Mapping Urban Drainage with Airborne LIDAR Using LP360

On January 11, 2018, Benjamin H. Houston, P.E., PMP, GISP presented a webinar with GeoCue Group, Inc. on mapping urban drainage with airborne LIDAR using LP360. Benjamin Houston has over 25 years of experience with mapping technologies, both from military applications, environmental conservation and public works. He is a licensed professional engineer in New York and…

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Find Poles using TerraScan

The “Find Poles” tool was introduced to the Railroad Tool Box with the release of TerraScan v017.018. While originally intended to automatically detect pole type objects along roads and railroads, which were collected using mobile or high-density airborne LIDAR data, this tool is designed in a manner where it can be used to detect a…

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ASPSuite: Processing multiple flights in an SBF

If the drone pilot leaves the Loki unit on while swapping batteries on the drone when flying larger sites then there will only be a single SBF covering the multiple flights. Each take off and landing of the aircraft is considered a flight. This is ok to do, and probably makes collection a easier, however,…

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ASPSuite: GNSS Quality Levels Explained

In step 3 of the processing wizard of ASPSuite the GNSS information is processed in an attempt to generate a good quality rover position file for use in downstream processing. While processing the GNSS solution a command window displays the quality level (Q level) for each epoch of the solution. Review this information for the…

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Errors in Surface Generation

Problem: There are some situations that can cause there to be a mismatch between surface elevations between tiles.  This can become apparent in the vicinity of waterbody breaklines where a tile covers the water but only overlaps with a single shoreline. In this scenario, the surface generation process cannot consider the influence of breaklines on…

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TerraSlave: failed to load block points

Problem:  Attempting to run a macro through TerraSlave results in the following message in the TerraSlave Processing Report: “Failed to load block points”   Solution: This can be caused by an incompatibility between the software and the point cloud format. For example, attempting to process LAS 1.4 data using the 32-bit TerraSlave. In this case,…

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TerraSlave: No active task

Problem: When attempting to run a macro on a project using TerraSlave and the following message is reported in TerraSlave’s Monitor Active Task dialog, try the following steps: Probable Resolution#1: In your Terra installation folder, open your TSlave folder. Then clear the contents from the following folders: ‘progress’, ‘queue’, and ‘task’. Probable Resolution#2: Ensure that…

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