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The basic steps of patching or filling a data holiday (hole) in LAS data using LP360 are: Draw a polygon (referred to as the “patch” polygon) over the area of the original LAS data that needs to be replaced.  Allow a bit of overlap into the good data.  You can use the Draw Shape Feature PCT…

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…

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…

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…

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…

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…

The new Coordinate System Utility in LP360 2015 allows you to define horizontal and vertical coordinate systems and output PRJ files. The Coordinate System Utility dialog allows you to set the coordinate system of a project or output file and shows descriptions of selected coordinate systems. You are able to select from predefined horizontal coordinate…

Do you ever find yourself performing the same point cloud task over and over again for larger datasets? A new tool available in 2015.1 Service Pack A may help by allowing you to run point cloud tasks from the command line. Named “LPRunPCT.exe”, this application contains a number of command line options and associated parameters…

ASCII file exports are limited in LP360 for ArcGIS (32-bit) to 3GB by the Windows operating system. In LP360 for Windows (64-bit) the limit is 16TB.

Symptom: While activating LP360 using an AUT file you receive a Copy Error (24244) message stating, “The process cannot access the file ‘C:\Program Files\Common Files\QCoherent\colorramp.bmp’ because it is being used by another process.” Probable Resolution #1: It is most likely that you have another session of LP360 License Administrator or LP360 open when you attempted…