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SUMO Map Convert

To facilitate user migration from SUMO, we designed to convert maps from SUMO to MOSS Protobuf Map format.

Load SUMO map file​

from mosstool.map.sumo.map import MapConverter
from mosstool.type import Map
from mosstool.util.format_converter import dict2pb
s2m = MapConverter(
    net_path="data/sumo/shenzhen.net.xml"
)

net_path is the path of SUMO road net xml file.

Control parameters

  • default_lane_width (float): the default value of lane width for the lanes without a width attribute.

Convert the map​

m = s2m.convert_map()
pb = dict2pb(m, Map())
with open("data/temp/sumo_map.pb", "wb") as f:
    f.write(pb.SerializeToString())

Here we get the converted MOSS map and dump it to data/temp/sumo_map.pb.

Advanced Usage​

Traffic Light Convert​

SUMO traffic-light xml files can be converted and incorporated into the output map by providing the traffic_light_path parameter during the initialization of MapConverter.

Control parameters

  • green_time (float): the green light duration in traffic light.
  • yellow_time (float): the yellow light duration in traffic light.
  • traffic_light_min_direction_group (int): for those junctions without input traffic-light and its number of lane directions are greater than or equal to traffic_light_min_direction_group, MapConverter will generate default fixed time traffic-light for it.

AOI and POI Convert​

SUMO AOIs and POIs xml files can be converted and incorporated into the output map by providing the poly_path parameter during the initialization of MapConverter.

Control parameters

  • merge_aoi (bool): if true, nearby AOIs will be merged into one larger AOI, thus reducing overall AOI numbers.