Author: AirGon Support Page 15 / 15
AirGon Support has written 148 articles
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…
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…
Create a Redline in Reckon
Reckon has been deprecated and replaced by LP360 Online, including the LP360 Portal and LP360 Cloud. 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…
Reckon Tonnage Workflow
Reckon has been deprecated and replaced by LP360 Online, including the LP360 Portal and LP360 Cloud. 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…
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 chose…
Photoscan – Not Recognizing Nvidia Graphics Card
If Photoscan is not recognizing your Nvidia graphics card, you may need to update your graphics card driver. Here is the procedure to follow: Download latest Geforce Experience application Update Geforce Experience Download latest driver using Geforce Experience Install driver with Geforce Experience Restart computer Once the computer has rebooted, check Photoscan and verify that…
Missing Images: XYZ from Camera Events (EXIF data)
Problem: Dropped images from Pixhawk drone flight and can’t georeference with dataflash logs. Probable Resolution: Create a new “Position File” that provides a row for each image filename, lat, lon, and elevation using our tool XYZsFromCAMEvents. Provide the “Image Folder” and the “Dataflash Log”. The default file is named “FlightLLAs.txt”. It DOES NOT create a “geotagged” folder, nor write…