Affine Transform LAS PCT

The Affine Transform LAS Point Cloud Task is a versatile tool for modifying the coordinates of your point cloud. A common use is applying grid to ground conversions which require more than a simple scale or translation. How to setup the Affine Transform LAS Point Cloud Task to accomplish this may not be readily apparent…

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Apply a Horizontal Rotation about an Origin Point

This post applies if your grid to ground conversion requires needing to apply a horizontal rotation about an origin point and is defined by: Horizontal Translation North (tN) Horizontal Translation East (tE) Horizontal Rotation (Rz) Horizontal Origin Northing (N0) Horizontal Origin Easting (E0) Horizontal Scale Factor Then, if the horizontal scale factor is one, luckily,…

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Applying a Horizontal Scale about an Origin Point

This post applies if your grid to ground conversion requires applying a horizontal scale about an origin point and is defined by: Horizontal Origin Northing (N0) Horizontal Origin Easting (E0) Horizontal Scale Factor Scale based grid to ground transformations are probably the most common. If the origin point is not defined, it is usually implied…

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Creating a User-Defined Coordinate System from a Known Coordinate System

When your data needs to be in a coordinate system that is not specified in LP360, you may need to create a User-Defined Coordinate System. One of the easiest ways to do that is by modifying a Known Coordinate System. For ease of demonstration I have color coded a User-Defined Coordinate System with what has…

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Adjusting image positions in Agisoft Metashape with ASPSuite local coordinate transformation

ASP Suite has the ability to adjust camera positions based on a local coordinate system. These positions are not updated in the EXIF data, but placed in a file in the “PPK” folder from the ASPSuite project. To import this file into Agisoft Metashape, please follow the instructions below: Open Metashape and import project images.…

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Local Coordinate Systems in AirGon’s ASP Suite

Using Loki, AirGon’s precision positioning system, very accurate georeferenced imagery can be collected using DJI drones over an area of interest. The positions from which those photos are captured are output from the ASP Suite workflow as geographic locations, described by latitude, longitude, and altitude coordinates. Image-to-point cloud software applications such as Agisoft PhotoScan and…

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