How to Get Position of GeoAgent

[bwaddell006]

Hi Everyone,

Trying to use mesa-geo to create an agent based model of vehicles that travel across the land, air, and sea. I want to update a GeoAgents Lat, Long.

My model uses geojson data to create the agents and place them in the space. I have set up the solara visualization and it show the agents where I want them on the map but I cannot figure out how to edit an agents position or translate it. All of my platform agents are single points.

Can someone tell me how to get a GeoAgents lat, long values?

class CombatModel(mesa.Model):

    def __init__(self, num_agents=10, num_steps=100):
        super().__init__()
        self.num_agents = num_agents
        self.num_steps = num_steps
        self.space = mg.GeoSpace("WGS84")
        self.platform_agents = []

        ea = mg.AgentCreator(ca.EnvironmentAgent, model=self)
        environment_agents = ea.from_file(Path(root) / "data/map.geojson")
        self.space.add_agents(environment_agents)

        platform_population = mg.AgentCreator(
            ca.PlatformAgent, model=self, crs=self.space.crs
        )
        platform_agent_file = platform_population.from_file(
            Path(root) / "data/platforms2.geojson"
        )
        self.space.add_agents(platform_agent_file)

class PlatformAgent(mg.GeoAgent):
    def __init__(self, model, geometry, crs):
        super().__init__(model, geometry=Point, crs=model.space.crs)
        self.model = model
        self.geometry = geometry
        self.crs = crs
        self.name = None
        self.side = None

    # def get_pos(self):
    #     return self.lat, self.lon

    # def set_pos(self, lat, lon):
    #     self.lat = lat
    #     self.lon = lon

    # def get_side(self):
    #     return self.side

    # def set_side(self,side):
    #     self.side = side

    def step(self):
        print(self.name, " located:", self.pos, self.pos)


class EnvironmentAgent(mg.GeoAgent):
    def __init__(self, model, geometry, crs):
        super().__init__(model, geometry, crs)

    def step(self):
        return

[wang-boyu]

Hi, position is agent's geometry. If it's a point, then self.geometry.y should be the latitude and self.geometry.x should be the longitude: https://shapely.readthedocs.io/en/stable/reference/shapely.Point.html#shapely.Point. Note that (lat, lon) is (y, x), not (x, y).

It works similary for polygon agents: https://shapely.readthedocs.io/en/stable/reference/shapely.Polygon.html#shapely.Polygon or other geometry types.