New cpp folder structure

Signed-off-by: Alexander Borsuk <me@alex.bio>

libs/traffic/pytraffic/example.py

@@ -0,0 +1,47 @@
+from __future__ import print_function
+from pytraffic import (RoadSegmentId,
+                       SegmentSpeeds,
+                       load_classificator,
+                       generate_traffic_keys,
+                       generate_traffic_values_from_binary,
+                       generate_traffic_values_from_list)
+import argparse
+
+parser = argparse.ArgumentParser(description='Example usage of pytraffic.')
+parser.add_argument("--path_to_classificator", dest="path_to_classificator",
+                    help="Path to the directory that contains classificator.txt.")
+parser.add_argument("--path_to_mwm", dest="path_to_mwm", help="Path to the target mwm file.")
+parser.add_argument("--path_to_keys", dest="path_to_keys",
+                    help="Path to serialized key data (i.e. the \"traffic\" section).")
+
+options = parser.parse_args()
+if not options.path_to_classificator or not options.path_to_mwm or not options.path_to_keys:
+  parser.print_help()
+  exit()
+
+load_classificator(options.path_to_classificator)
+
+keys = [
+  RoadSegmentId(0, 0, 0),
+  RoadSegmentId(1, 0, 0),
+  RoadSegmentId(1, 0, 1),
+]
+
+fid, idx, dir = keys[2].fid, keys[2].idx, keys[2].dir
+print(fid, idx, dir)
+
+keys_from_mwm = generate_traffic_keys(options.path_to_mwm)
+
+seg_speeds = SegmentSpeeds(1.0, 2.0, 3.0)
+ws, wrs, w = seg_speeds.weighted_speed, seg_speeds.weighted_ref_speed, seg_speeds.weight
+print(ws, wrs, w)
+
+mapping = {
+  RoadSegmentId(0, 0, 0): SegmentSpeeds(1.0, 2.0, 3.0),
+  RoadSegmentId(1, 0, 1): SegmentSpeeds(4.0, 5.0, 6.0),
+}
+
+buf1 = generate_traffic_values_from_list(keys, mapping)
+
+with open(options.path_to_keys, "rb") as bin_data:
+  buf2 = generate_traffic_values_from_binary(bin_data.read(), {})