LAS v1.4 introduced the concept of the Overlap classification flag. Since this new flag did not previously exist in the classification code byte, the class offsets discussed here do not apply to the Overlap classification flag. A user would need to have both LP360 and TerraScan in order to properly identify and flag overlap points.…
If you are involved in airborne LIDAR workflows in North America, you will immediately understand the value of supporting LAS Version 1.4, Point Data Record Format 6 for your end-to-end workflow as this will be the required deliverable format for the USGS 3D Elevation Program. Of course, this will drive all standard airborne LIDAR deliverables…
Purpose: This technical note explains Grid-to-ground projections (AKA “ground coordinates”, “surface coordinates”, “localized coordinate networks”, etc.) within GeoCue. A ground coordinate system is a local coordinate system created by modifying the origin and scale of an existing projected coordinate system, such as a state plane or UTM grid system. The ground system is tied to…
Purpose: This technical note explains how to assign strip numbers to source (flight lines) prior to populating LAS working segments or generating TerraScan Trajectories. Most LIDAR system manufacturer software does not automatically assign file source ID to the strip based LAS files. Also, original strip numbers may not correspond with flight plan strip numbers. For…
In the new ASPRS Positional Accuracy Standards for Digital Geospatial Data, low confidence areas within LIDAR data are defined to be where the bare earth model might not meet the overall data accuracy requirements. Generally speaking with LIDAR data this can occur where there is heavy vegetation that causes poor penetration of the pulses. If…
The USGS LIDAR Base Specification refers to Spatial Distribution and Regularity. It describes an assessment that is done, in addition to general point density assessments, to determine the regularity with which the a LIDAR point data collection is executed. The density images that allow one to follow the USGS specification for making the assessment can be…
Maintaining maintenance on your GeoCue Workflow Management software is more than just gaining access to all software releases during the maintenance period. In addition, it allows access to our wide range of support and training services: Customer Advisory Bulletins; An online searchable knowledge base, support.GeoCue.com, for finding solutions to frequently asked questions, technical insights, and general…
We recommend the following with respect to backing up the SQL Database: A full backup prior to any service pack installs or version updates At minimum a weekly full backup of all databases (GeoCue and Federator) Daily Incremental backups (if possible) Ideally one would want more frequent incremental backups since every transaction in GeoCue is stored…
The LP360 Sketch Tool is a custom ArcGIS™ sketch tool that adds custom functionality to the out-of-the-box ArcGIS sketch tool. The LP360 sketch tool operates the same as the ArcGIS sketch tool. The LP360 Sketch Tool is only available in LP360 for ArcMap. The LP360 Sketch Tool can use the ArcEditor snapping options in the…
Attempting to process a project within GeoCue results in, “System.IO.IOException: Not enough server storage is available to process this command.” The error message indicates that the server has run out of memory for processing commands. Typically this error message is unrelated to the size of the project that is currently being processed within GeoCue.To help…
