Last active
January 19, 2019 22:09
-
-
Save ilkermanap/d6f077774ae4b934eed5871043aca0a9 to your computer and use it in GitHub Desktop.
Distance between two points with earth curve
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| def distance(lt1,ln1, lt2,ln2, in_meters = True): | |
| """ | |
| distance between two coordinates in meters | |
| or in | |
| """ | |
| R = 6371000 # earth radius | |
| theta1 = lt1 * PI / 180 | |
| theta2 = lt2 * PI / 180 | |
| delta_theta = (lt2 -lt1) * PI / 180 | |
| delta_fi = (ln2 - ln1) * PI / 180 | |
| a = (sin(delta_theta/2.0) ** 2) + (cos(theta1) * cos(theta2) *(sin(delta_fi/2.0) **2 )) | |
| c = 2* atan2(sqrt(a), sqrt(1-a)) | |
| if in_meters: | |
| return R * c | |
| return c |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
forgot to add return in radian