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| author |  Jan Tattermusch <jtattermusch@google.com> | 2018-03-22 11:54:28 +0100 |
|---|---|---|
| committer | Jan Tattermusch <jtattermusch@google.com> | 2018-03-23 07:44:30 +0100 |
| commit | a26aecc03b5c110ce0912f3340933a4ed87d5ec0 (patch) | |
| tree | fd54656fc841298d4f8908972f8c4ce62396c30a /examples/python | |
| parent | b4a5727149201bac53a33c53c2cf93fed5414540 (diff) | |
reimplement distance calculation in routeguide
Diffstat (limited to 'examples/python')
| -rw-r--r-- | examples/python/route_guide/route_guide_server.py | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/examples/python/route_guide/route_guide_server.py b/examples/python/route_guide/route_guide_server.py index f10008fdec..1969fdd378 100644 --- a/examples/python/route_guide/route_guide_server.py +++ b/examples/python/route_guide/route_guide_server.py @@ -46,6 +46,7 @@ def get_distance(start, end): delta_lat_rad = math.radians(lat_2 - lat_1) delta_lon_rad = math.radians(lon_2 - lon_1) + # Formula is based on http://mathforum.org/library/drmath/view/51879.html a = (pow(math.sin(delta_lat_rad / 2), 2) + (math.cos(lat_rad_1) * math.cos(lat_rad_2) * pow( math.sin(delta_lon_rad / 2), 2))) |