121 articles GeoCue Tools, Tips and Workflows

GeoCue Archiving Error Messages

Running the archive function in GeoCue produces an ArchiveLogs.#.txt text file in the GeoCue temp folder on the machine performing the archive. The # is sequential so that a log file may be generated for each archive attempt. Should the archive task encounter an exception it is best to review these logs for the problem…

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Modifying VERT_CS WKT for USGS

A recent USGS addendum to the LIDAR Base Specification has stated that “User-defined entities will not be allowed for capturing specific geoid information in the WKT”. LP360 (v2015.1.76.15 or later) In order to remove this information from the VERT_CS WKT being included in LP360 generated WKTs it is necessary to replace the following file(s): “C:\Program…

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GeoCue: Classification Lookup VLR

***Warning: This VLR is not currently being written correctly and will be rectified in a service pack release*** In GeoCue 2017 we added the ability for GeoCue to write the Classification Lookup VLR as provided for by the LAS v1.4 specification. The Classification Lookup VLR is an optional VLR that can be used to convey…

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System.ArgumentException: Item has already been added. Key in dictionary: ” Key being added: “

Problem: User encounters a .NET crash, “System.ArgumentException: Item has already been added. Key in dictionary: ” Key being added: ” “, while attempting to generate TerraScan trajectories from LIDAR Source strips. Probable Resolution #1: We suspect corrupted entities on the layer in question. Create a new trajectory layer and try creating the trajectories to the…

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Error Setting Viewer Control Files: Unable to Locate SRTM Data

Problem: Attempting to load oblique images into the viewer results in message, “Error Setting Viewer Control Files: Unable to Locate SRTM Data”. In GeoCue 2013 , a new elevation service based on the Shuttle Radar Topography Mission (SRTM) was added to the GeoCue Server. This service provides elevation data at 30 m post spacing outside…

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Using Neighbours when Running Macros

Only when running TerraScan macros on a project in TerraScan or through GeoCue’s LIDAR 1 CuePac can an overedge region be specified. The macro loads points from neighbor tiles to: support the algorithms maintain continuity between data files, such as providing for a continuous surface at the block edge Should be done when doing routines…

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Terminating Task in Dispatch Manager

Problem: The following error may be encountered while attempting to terminate a task in the Dispatch Manager: “An error occurred terminating the selected tasks. Detailed Description: System.NullReferenceException: Object not set to an instance of an object. …”   Solution: Errant tasks such as this can be deleted from the system through the use of the…

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Import Multiple Scanner Data

GeoCue has the ability to import source LIDAR strips with multiple scanners and assign the scanner number to the User Byte in the LAS format. The User Byte is what TerraScan uses for the scanner since no scanner attribute existed before LAS v1.4, and the field, even in LAS v1.4 is limited to a small…

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Setting the screen resolution and Scale

Problem: Many new laptops come with very high resolution screens, causing text and icons in various software packages to appear very tiny, or badly sized. Probable Solution: Reduce the screen resolution to 1920 x 1080 and scale the text to 175%, or as desired.

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