'Scanned Maps' Category

• Calibrating a map of Lithuania and adding a Transverse Mercator Grid (LKS94)

  

  Eugenijus K. needs help calibrating a map of Lithuania, and overlaying a grid in LKS94, the Lithuanian national coordinate system. Here’s how to do it using ExpertGPS…

  
  

  July 9th, 2009

• ExpertGPS Review: Historical Railroad Mapping

  

  Mike G. uses ExpertGPS to research abandoned railroads. ExpertGPS lets him mark rights of way on historical topo maps, and then scour modern aerial photos for matching features.”

  
  

  May 29th, 2009

• Creating GPS hiking maps from a scanned trail map

  

  Jim asks: “I would like to hike trails in various park locations throughout the US ( mostly Tampa area, FL). I can find the addresses online and usually a general map of the trails. Many of these trails are miles long, however, and marked with numbered posts along the way. None of this has GPS [...]

  
  

  May 29th, 2009

• Help! My GPS doesn’t support State Plane Coordinates

  Monica has an aerial ortho photo of New Mexico, which uses the New Mexico state plane coordinate system, NAD 83 datum. Her GPS doesn’t support NM SPCS, NAD83, however. GPS expert Dan Foster shows how ExpertGPS can convert these state plane coordinates to latitude/longitude or UTM so you can keep using your GPS [...]

  
  

  April 6th, 2009

• How can I Compare Historical Topo Maps with Current Maps?

  

  Interested in old maps or historical topo sheets? You can use ExpertGPS to display old topo maps and compare them against modern topos and aerial imagery.

  
  

  March 4th, 2009

• Mapping a Hunting Area on a Farm using ExpertGPS and Google Earth

  

  Bill G. writes: “I see that I can enter my hunting areas with expert GPS and did see some farm capabilities. How easy is it to put fence lines and gates on the maps? Can I pull in a Google Earth image and draw directly on that?” Dan Foster explains how to [...]

  
  

  February 26th, 2009

• Displaying orthophotos with world files

  

  ExpertGPS author Dan Foster explains how to import orthophotos, aerial photographs, maps, or other imagery into ExpertGPS Pro without having to recalibrate the images. ExpertGPS Pro users can import georeferenced imagery, and the software will automatically read the geo-referencing information from the world file.

  
  

  November 5th, 2008

• How do I use a Lambert Conformal Conic Map in ExpertGPS?

  

  Keith S. needs help calibrating a map of Mongolia. He knows the map uses the Lambert Conformal Conic projection, but he needs help figuring out what values to use in ExpertGPS so that the map will display correctly.

  
  

  October 30th, 2008

• Using GeoTIFF Maps in ExpertGPS

  

  ExpertGPS user Russell T. asks how he can work with GeoTIFF imagery. Dan Foster gives recommendations on preparing GeoTIFF orthoimagery for use in ExpertGPS and other GIS mapping software, and offers suggestions on how the aerial imagery should be prepared and delivered by the imagery provider.

  
  

  October 10th, 2008