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enter image description here

look at the picture above, see a black circle.

black circle Coordinates is lat(126.897453), lon(37.530028)

if the red rectangle is square(vertical and horizontal are 20m), I want to know the blue circle of coordinates

please let me know calculation formula.

In advance, thanks for your answer!

have a good time :)

HighEndGuy
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  • Possible duplicate of [Calculate distance between 2 GPS coordinates](http://stackoverflow.com/questions/365826/calculate-distance-between-2-gps-coordinates) – JeremyP Oct 28 '15 at 16:05
  • @JeremyP you don't understand this question!. I want to know that using one coordinate and distance to get other coordinate! – HighEndGuy Oct 29 '15 at 05:41

1 Answers1

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This task is solved by first transforming the spherical lat/long coordinates to a cartesian x,y coordinates with unit meters.
Then you calculate the location with very basic addition. (x = x-20, y=y-20/2)
Then you transform the location back to lat/long coordinates.

AlexWien
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