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lon1
2011 Jan 20
1
Generating time progressing line for Google Earth
...matrix(NA, numberOfIntervals, 2)
full_distance = gcd.slc(lat1 = start_point.Lat, lon1 =
start_point.Long, lat2 = end_point.Lat, lon2 = end_point.Long)
distance_slice = full_distance / numberOfIntervals
for(i in 1 : numberOfIntervals) {
distance = i * distance_slice
ang_dist = distance / 6371.0
lon_1 = Radians(start_point.Long);
lat_1 = Radians(start_point.Lat);
lat_2 = Radians(end_point.Lat);
lon_diff = Radians(end_point.Long - start_point.Long);
# First calculate the bearing
bearing = atan2( sin(lon_diff) * cos(lat_2), (cos(lat_1) * sin(lat_2))
- (sin(lat_1) * cos(lat_2) * cos(lon_diff)) );...