230 articles LP360 Tools, Tips and Workflows

Information regarding the tools available in LP360.

When would one use Out Areas in Breakline Enforcement?

Out areas are used to create void areas in the TIN, resulting in No Data values in the exported DEM raster. One may wish to do this for: Waterbodies Perhaps for sensitive areas To not generate contours in the interior of buildings If the project area is a corridor or oddly shaped, then one can…

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Breaklines in LP360- Part 5

In the last section, we discussed the creation of 3D breaklines for enforcing situations where the elevation must be a constant along the breakline. The most common example of this application is “water body flattening” such as lakes and ponds. In this final section we will consider the case of varying elevation along the breakline.…

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Point Cloud Tasks

Point Cloud Tasks What is a Point Cloud Task (PCT)? A function (Extract ground, Conflate Line) that operates on points and/or vectors. A task can be a filter and/or an extractor. A filter classifies or changes the classification values for points (e.g. classify ground). An extractor extracts information from the point cloud data into vector,…

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Breaklines in LP360- Part 4

This is the fourth edition of our series on breaklines in LP360. In this edition, we will have a look at how features are represented in LP360 as well as the tools available for collecting “flat” breaklines. Features: Features in LP360 are internally stored as files in Shape format. This is a binary standard developed…

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Error 6: EPSG PCS/GCS code not found in EPSG Support Files

Symptom: While running the Point Cloud Statistics Extractor Point Cloud Task it returns “Error 6: EPSG PCS/GCS code 37518 not found in EPSG Support Files. Is this a valid EPSG coordinate system?“. The error message indicates that one or more input LAS files has been assigned an EPSG code that is not a valid code.…

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LP360 Command Line Executables

LP360 has several command line executable style programs that assist with productivity for different tasks, particularly when working with large amounts of data or repeating processes. These executables may be run: Via an MS-DOS style batch scripts By configuring corresponding commands and checklist steps within the GeoCue workflow software to take advantage of the command…

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Error getting feature geometries (GetFeatureGeometries)

Problem: While trying to select a feature in LP360 using the Feature Edit tools a user receives an error message, “Error getting feature geometries (GetFeatureGeometries). Exception information: HRESULT: 0x80004005. Description: Unable to convert shape using ShapetoLPGeometry.” The message indicates that the type of feature being selected is not supported in that version of LP360. Probable…

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Breaklines in LP360- Part 3

Introduction to Part 3: In the last part of this series, we discussed in some detail how a Triangulated Irregular Network (TIN) can be constrained by features external to the point cloud model such as lines, points and polygons.  In this month’s edition, we will look at contours and how LP360 can extract elevation information…

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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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Importing Control/Check Points into LP360

Platform: LP360 (Standalone) Minimum Licensing: Standard, sUAS Version: 2017.1 or higher Date: 15 September 2018 Introduction: This note describes importing control and/or check points in text format into LP360 for use in accuracy assessment. We distinguish these points as: Control Point – A point that was used in the modeling process. It generally should not…

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