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15 sie 2020 · Great Circle Mapper – also known as GCMap or GCM – is a tool I regularly use. It provides a wealth of information on airports and the distances between two or more destinations. It is a particularly useful tool for flyer programs of airlines whose pricing is linked to the distance travelled.
Use Great Circle Mapper to calculate the distance and flight duration between all airports worldwide and draw the flight route on a map.
12 cze 2024 · The Great Circle Mapper displays maps and computes distances along a geodesic path. It includes an extensive, searchable database of airports and other locations.
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The Great Circle Mapper therefore offers a choice of map projections: Rectangular (Plate Carrée) Sometimes called unprojected maps, latitude and longitude are treated as simple rectangular coordinates of pixels in the map image.
The Great Circle Mapper displays maps and computes distances along a geodesic path. It includes an extensive, searchable database of airports and other locations.
How are the great circle distances calculated? The geod program from the PROJ.4 cartography tools is used to calculate both the distances and the points along the paths, which are rendered using a custom rendering tool .
