After placing your order you will receive an unlock code via email within minutes. Upgrade your existing ExpertGPS Home license to ExpertGPS ProĮxpertGPS features instant activation for your convenience. Includes 12 months of ALL program updates and new featuresġ2 months of FREE, unlimited tech supportĪfter 12 months, you can keep using the current version of the software you have at no further cost to you, or you can continue to receive priority support, program upgrades, and access to premium maps and online program features for just Import data from Excel, Mapsource, and 37 other formats View all of your GPS data over Google Earth's color imagery Geotag and map your digital photos, automatically Transfer data to and from multiple GPS receivers Plot your GPS data over your own scanned maps USGS topo maps, aerial photos, and worldwide street maps Locate parcels by township, range, and section (US PLSS) Lay out survey plots and timber cruises with Grid Builder json)Ĭalculate Line of Sight between between radio towers or other points.Ĭonvert to and from US State Plane Coordinates (NAD27 & NAD83), in meters and US Survey Feet Your Pro license covers you at work, on your laptop, and at homeĬonvert GPS data and import and export to and from CAD drawings (.dxf)Ĭonvert GPS data to and from GIS shapefiles (.shp)Ĭreate buffers (wetland zones, road easements, e.g.) around GPS and imported data. Pro allows royalty-free output in maps, books and presentations Which version of ExpertGPS is right for you?ĮxpertGPS Home is licensed for non-commercial, personal use onlyĮxpertGPS Pro is licensed for commercial use in your business Every time I think I know it all, I find some other really useful feature that I never knew existed. Ask for an uncompressed or lossless image in addition to any lossy, compressed images they provide.Risk-Free Guarantee! If ExpertGPS doesn't pay for itself in 14 days, we will gladly refund your money, and youĬan keep the software! That's how confident we are that ExpertGPS will save you time and money immediately.ĮxpertGPS is probably the best investment I've ever made in software. This can make it difficult to precisely locate features on the map, since edges may spread out over several pixels. One drawback of image compression, especially the wavelet compression used by MrSID imagery, is that it can produce ringing artifacts around the edges of features. Orthoimages are large files, and you may receive a file that has been compressed to reduce its file size. Your contract with the imagery provider should specify the level of accuracy to expect across the entire image. In addition to ExpertGPS, TopoGrafix offers EasyGPS, a free GPS data viewer. They will also add the georeferencing data, the calibration points that allow ExpertGPS to determine the latitude and longitude of every pixel on the image. Since 1998, TopoGrafix has been dedicated to creating high-quality, easy-to-use GPS map software products for the outdoor recreation, geocaching, and professional markets. Overhead imagery needs to be ortho-rectified by the imagery provider to remove the distortion caused by the aerial camera not pointing straight down when the photo is taken. The accuracy you get in ExpertGPS depends on the quality of the ortho-rectification done by the imagery provider and the correctness of the calibration points (tie points) given in the GeoTIFF or. If they don’t, there are free programs to extract a. tfw calibration file with the GeoTIFF – this would be standard if they were providing imagery for use in ArcGIS, so they should be used to it. It should be relatively painless for the consultant or the imagery provider to also provide a. ExpertGPS will treat it as an uncalibrated TIFF, meaning you’ll have to do the calibration by hand. Last but not least…when importing an image to ExpertGPS what format would yield the absolute best accuracy we could hope for? How to use GeoTIFF imagery in ExpertGPS?ĮxpertGPS doesn’t have the ability to read the projection and georeferencing data out of a GeoTIFF at this time, although it’s high on my list of to-do features for GIS users. My question to you is does ExpertGPS software support the beforementioned format and or if there is a better format to employ in your opinion.Īs a backup thought I have requested we receive the image in various formats to make sure all of our software would be compatible with it…. The District is considering the purchase of a new GEOTIFF aerial image of the district boundaries for mapping of the infrastructure…the consultant we have been in contact with is advising us to purchase the image in this format for its exceptional horizontal accuracy.
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