AirGon Support

AirGon Support has written 20 articles

Error: Unknown Spatial Reference

How to create a world file for a raster Problem: When outputting a cut and fill image from volumetrics from LP360, a world file is not created for the raster.  This error will be given when importing the raster into ArcMap: Solution: In ArcMap, go to the tool box: Under “Data Management Tools” > “Projections and…

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Downloading Image Layers in Reckon

Viewing uploaded images on the Reckon website is a great way to view orthomosaics and hillshades. If a user needs to download an image, to view it offline, or in LP360, this can be accomplished by downloading the image from the web client. Downloading image layers in Reckon is an easy and secure process that…

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Classification in LP360 Using Shapefiles

Classify by Features is a useful way of assigning classifications to points using a spatial relationship to other features. Any vector layer that exists in the Map can be used to classify points that are either within a specified distance of polygon, linear, or point features or any points completely within a polygon feature. 1.…

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Mapping the Battle of Gettysburg – Little Round Top Revealed

GeoCue Group recently partnered with the National Park Service (NPS) in a pilot project to assess culturally significant areas within Gettysburg National Military Park using small unmanned aerial systems (sUAS). The area of interest (AOI) for this project was the western face of Little Round Top. Little Round Top was the location of a defensive…

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Photoscan – Editing Orthomosaics

Photoscan has a function to assign only user selected images for a specific area. This is useful for cleaning up areas of the ortho that have: blurriness, moving vehicles, bad image stitching, etc. 1. To begin, make sure that you have selected to view the orthomosaic, draw a polygon around the area in the orthomosaic…

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PhotoScan Processing with Duplicate Photo Names.

When importing adjusted photo heights into PhotoScan, the photo name is used to attach the adjusted image height to the photo in the PhotoScan project. The photo numbering system used by DJI aircraft starts at DJI_ 0001 and goes up to DJI_0999.   When the number of photos exceeds DJI_0999, the photo count starts back over…

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ASP Suite – Adjust Heights Workflow

To process images in PhotoScan using control points, it is important for the image heights to be relative to the same vertical datum as the control points. Some drone models cannot determine their height relative to a vertical datum but can accurately determine their height above the takeoff location. If the takeoff elevation is known,…

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Memory Error When Building Mesh in PhotoScan

One of the steps in AirGon’s PhotoScan processing workflow is to build a 3D mesh.  The mesh building step usually consumes more memory than other steps in the workflow and can lead to a memory error if the capacity is exceeded.  The source of this problem can sometimes be traced back to the selection of…

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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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