improving course compare

rowers/courses.py

@@ -36,6 +36,21 @@ from rowers.models import VirtualRace
 
 # distance of course from lat_lon in km
 
+def pass_start(df, course):
+    if df.empty:
+        return False
+
+    def f(x):
+        return coordinate_in_path(x[' latitude'], x[' longitude'], p)
+
+
+    polygons = course.polygons.all()
+    p = polygon_to_path(polygons[0])
+
+    inpolygon = df.apply(lambda row:f(row), axis=1).copy()
+
+    return inpolygon.any()
+
 
 def howfaris(lat_lon, course):
     coords = course.coord