While creating a new layer in a GeoCue project you may see a Missing Datum Transformation dialog appear. The missing datum transformation means that GeoCue does not have a predefined transformation path between the horizontal datum of the layer and the project’s horizontal datum, or the vertical datum’s defined horizontal datum. In most cases that we…
The elevation difference (dZ) tool will display, or generate images, based upon the settings that you select. For display those settings are located in the LAS properties -> Symbology -> Delta Z tab. The colors used by default usually indicate a good fit with green and a mismatch in red. Hence, open terrain areas generally…
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…
Symptom: Trying to load LP360 on new computer and receive a message stating that, “The signature for LP360x64_v2015.1.76.7 is corrupt or invalid.”, or “The signature for LP360forArcGIS_v2015.1.76.7 is corrupt or invalid.” Probable Resolution: The installation package did not download properly. Try updating your browser to the latest version, or using a different bowser entirely, or…
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…
LP360 can read LAS files with waveform data, as long as the files are LAS v1.3 or v1.4. LP360 cannot manipulate the waveform itself and has no tools at this time to make use of the waveform information. However, LP360 can manipulate the discrete points that were generated from the wave. For example, modifying the…
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…
