AirGon Support

AirGon Support has written 12 articles

DJI Drones for Mapping: DJI Phantom 4 Pro and the DJI Inspire

There are lots of drones to choose from for mapping purposes, but a couple of stand-outs from DJI are the Phantom 4 Pro and the Inspire 2.  They both provide excellent flight times and they also have mechanical shutters.  This is important to eliminate the geometric distortions inherent with electronic rolling shutters, which are typical…

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Download Image Layers from Reckon

In addition to viewing orthos and other image layers in Reckon, users also have the option to download the layer to a local drive.  The following steps describe the process for downloading an image layer from Reckon. Step 1 – User requests an image. In the Table of Contents, left click on desired image layer. Left…

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Downloading CSV, PDF, and Layers from Reckon

To download data from Reckon,  first select the date from the drop down menu that corresponds to the data you wish to download.  The layers associated with this date should be displayed in the Table of Contents on the left side of your screen.  Left-click the layer name and select from the list of options…

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Reproject/Shift LAS PCT in LP360

This workflow is for reprojecting, shifting, or scaling in x, y, and/or z direction, for LAS data. This is useful for converting: Geographic Spatial Reference System (SRS) to Projected SRS and vice versa. Projected SRS to another Projected SRS Different measurement units: US survey feet, international feet and meters. Removing vertical bias from LAS data…

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Remove overviews from image

Problem: When loading an orthophoto image into LP360/Topolyst no image is displayed, yet when you zoom in it becomes visible. Modifying the LP360 image display properties shows the image extents properly and the header checks out. Probable resolution: We suspect that the overviews in the image file are corrupt/invalid. One can use the GDAL tool to…

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IMU and Compass Calibration for Pixhawk

Calibrate IMU and Compass after updating new firmware for AV900 If AV900’s firmware is updated, it’s recommended that the IMU and compass should be re-calibrated. Here are the step-by-step instructions to re-calibrate them: Prepare the Drone Insert and secure the battery into the AV900 Raise and secure the GPS/Compass (fig. 1) Figure 1. The GPS/Compass must be…

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Create a Redline in Reckon

This workflow explains how to create a redline in Reckon.  Redlining provides the ability to create, edit and publish geometries with attributes.  Redlines can be used to communicate work to be done with a service provider (i.e. defining stockpiles to be analyzed), edit existing features, create new features and can be downloaded as ESRI shape…

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Reckon Tonnage Workflow

Calculating tonnage is a two-step process using Topolyst and Reckon.  First, the density information must be formatted and entered correctly into the “Volume” file in Topolyst/LP360.  This file can be named anything but for our instructions it is the Volume file you see in the figures below. Secondly, Reckon will calculate the tonnage from the…

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Determining the correct Ephemeris File to Download from IGS

How to determine the correct Ephemeris File to download from IGS: First look at the OPUS report from the GPS unit. Find the highlighted info in Figure 1: Figure 1   Go to the IGS website: ftp://ftp.igs.org/pub/. Click on the GPS or GLONASS link as shown in Figure 2: Figure 2 For this example, I…

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