333 articles TrueView Tools, Tips and Workflows Page 31 / 34

GeoCue’s repository of TrueView tools, tips and workflows for the TrueView line of drone mapping products. Includes former AirGon products such as Loki and ASPSuite.

Exported LAS files have coordinate resolution fluff

LP360 always uses a scale of 0.001 when exporting LAS files so as never to degrade the precision of the data. There is no user option like there is in TerraScan or GeoCue to specify the desired resolution and the mechanism that allows LP360 to load “unlimited” LIDAR prevents it from knowing the precision of all of…

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OpenGL Troubleshooting Guide for LP360 2016 and Topolyst 2016

Versions of OpenGL Supported in LP360 and Topolyst 2016: Previous versions of LP360 supported OpenGL 1.0 only.  OpenGL 1.0 was released on Windows in 1994. Both the LP360 standalone and Topolyst products now support two versions of OpenGL, OpenGL 4.4, or better if available, and OpenGL 1.1 are supported for these two products.   The LP360 for…

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Liberalizing Drone Flights – FAA Part 107

New regulations for commercial small unmanned aerial systems (sUAS or “drones”) will take effect in the United States on August 27, 2016.  These new rules, referred to as Part 107, contain a real gem that not many folks are discussing.  In fact, I think it may be the most important rule of the entire Part…

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Pyramiding Files when Adding Files to Layer

About Pyramiding Files Pyramiding is used to improve display performance for large files. This is similar to the way reduced resolution overviews work. When the Pyramid checkbox is selected, a pyramid file (.QVR) is created for any file that is either missing the .QVR file or the .QVR file is older than the file. For LAS…

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No Connection Could Be Made Because The Target Machine Actively Refused It

Problem: On the License Server Info tab of the LP360 License Administrator one sees the error message “No connection could be made because the target machine actively refused it”. Probable Resolution #1: Is the LP360 License Server machine turned on? Probable Resolution #2: Can the client machine communicate with the LP360 license server machine? Option…

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Planar Statistics Point Cloud Task

The Planar Surface Statistics Point Cloud Task attributes a user drawn polygon with planar extraction statistics. It defines the best fit plane and computes the quality of fit values, which are stored as attributes on the shape file. It also serves as a diagnostic tool to facilitate the setting of planar filter settings. Statistics given…

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RMSE and Minimum Contour Interval

The latest ASPRS Positional Accuracy Standards for Digital Geospatial Data shows the correlation between vertical RMSE and contour interval. The updated ASPRS standard uses accuracy based upon the RMSE (Root Mean Square Error) at the ground scale. The ASPRS Accuracy Standards for Large Scale Maps from 1990 used RMSE, however the difference comes in how the standards represent the accuracy…

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Point Cloud Statistics Extractor CRS Codes

The results of extracting the LAS header information from the Point Cloud Statistics Extractor or LDDump may contain EPSG, GeoTIFF or other codes for coordinate systems, datums, units, etc. For GeoTIFF tag or codes: http://geotiff.maptools.org/spec/geotiff6.html#6.3.1.3 In here you’ll find for example the codes used for Linear Units: Linear Unit Values (See the ESPG/POSC tables for…

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Smooth Corner Vertex Spacing

The smooth corners contour option in LP360 is basically a choice between drawing contours as line strings or drawing them as curves. The Smooth Corner Vertex Spacing parameter is the number of vertices to be added between the existing vertices that are found where the contour crosses the triangle edge. Those vertices on the triangle…

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