I have the coordinates (lat, lon) of 3 points (P0, P1, P2) on the Earth surface. The distance between P1 and P0 is the same as the distance between P2 and P0. Therefore, one can make a circle arc from P1 to P2 with P0 as a centre. My problem is that I need to interpolate this circle arc by N lines to be able to work with it in the GeoJSON format (which does not support circles/circle arcs). Each line segment should ideally have the same legth. Is there any library suitable for this problem? I have found some code for transformation of a circle to a polygon (such as polycircles), but none of them seemed to support circle arcs. A simple code is here: import geopy.distance # DME OKL: 50 05 45.12 N 14 15 56.19 E lon0 = 14.265608 lat0 = 50.095867 coords0 = (lat0, lon0) # 1st circle point: 50 03 10,23 N 014 28 30,47 E lon1 = 14.475131 lat1 = 50.052842 coords1 = (lat1, lon1) # 2nd circle point: 49 59 33,96 N 014 24 58,76 E lon2 = 14.416322 lat2 = 49.992767 coords2 = (lat2, lon2) # verification of dinstances: print(geopy.distance.distance(coords1, coords0).nautical) print(geopy.distance.distance(coords2, coords0).nautical) # How to interpolate circle arc between points 1 and 2? Continue reading...