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traversable_scene

TraversableScene

Bases: Scene

Traversable scene class. Contains the functionalities for navigation such as shortest path computation

Source code in omnigibson/scenes/traversable_scene.py 
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class TraversableScene(Scene):
    """
    Traversable scene class.
    Contains the functionalities for navigation such as shortest path computation
    """

    def __init__(
        self,
        scene_model,
        scene_file=None,
        trav_map_resolution=0.1,
        default_erosion_radius=0.0,
        trav_map_with_objects=True,
        num_waypoints=10,
        waypoint_resolution=0.2,
        use_floor_plane=True,
    ):
        """
        Args:
            scene_model (str): Scene model name, e.g.: Adrian or Rs_int
            scene_file (None or str): If specified, full path of JSON file to load (with .json).
                None results in no additional objects being loaded into the scene
            trav_map_resolution (float): traversability map resolution
            default_erosion_radius (float): default map erosion radius in meters
            trav_map_with_objects (bool): whether to use objects or not when constructing graph
            num_waypoints (int): number of way points returned
            waypoint_resolution (float): resolution of adjacent way points
            use_floor_plane (bool): whether to load a flat floor plane into the simulator
        """
        log.info("TraversableScene model: {}".format(scene_model))
        self.scene_model = scene_model

        # Create traversable map
        self._trav_map = TraversableMap(
            map_resolution=trav_map_resolution,
            default_erosion_radius=default_erosion_radius,
            trav_map_with_objects=trav_map_with_objects,
            num_waypoints=num_waypoints,
            waypoint_resolution=waypoint_resolution,
        )
        # Run super init
        super().__init__(
            scene_file=scene_file,
            use_floor_plane=use_floor_plane,
        )

    @property
    def trav_map(self):
        """
        Returns:
            TraversableMap: Map for computing connectivity between nodes for this scene
        """
        return self._trav_map

    def get_random_point(self, floor=None, reference_point=None, robot=None):
        return self._trav_map.get_random_point(floor=floor, reference_point=reference_point, robot=robot)

    def get_shortest_path(self, floor, source_world, target_world, entire_path=False, robot=None):
        return self._trav_map.get_shortest_path(
            floor=floor,
            source_world=source_world,
            target_world=target_world,
            entire_path=entire_path,
            robot=robot,
        )

trav_map property

Returns:

Type Description
TraversableMap

Map for computing connectivity between nodes for this scene

__init__(scene_model, scene_file=None, trav_map_resolution=0.1, default_erosion_radius=0.0, trav_map_with_objects=True, num_waypoints=10, waypoint_resolution=0.2, use_floor_plane=True)

Parameters:

Name Type Description Default
scene_model str

Scene model name, e.g.: Adrian or Rs_int

 required
scene_file None or str

If specified, full path of JSON file to load (with .json). None results in no additional objects being loaded into the scene

 None
trav_map_resolution float

traversability map resolution

 0.1
default_erosion_radius float

default map erosion radius in meters

 0.0
trav_map_with_objects bool

whether to use objects or not when constructing graph

 True
num_waypoints int

number of way points returned

 10
waypoint_resolution float

resolution of adjacent way points

 0.2
use_floor_plane bool

whether to load a flat floor plane into the simulator

 True
Source code in omnigibson/scenes/traversable_scene.py 
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def __init__(
    self,
    scene_model,
    scene_file=None,
    trav_map_resolution=0.1,
    default_erosion_radius=0.0,
    trav_map_with_objects=True,
    num_waypoints=10,
    waypoint_resolution=0.2,
    use_floor_plane=True,
):
    """
    Args:
        scene_model (str): Scene model name, e.g.: Adrian or Rs_int
        scene_file (None or str): If specified, full path of JSON file to load (with .json).
            None results in no additional objects being loaded into the scene
        trav_map_resolution (float): traversability map resolution
        default_erosion_radius (float): default map erosion radius in meters
        trav_map_with_objects (bool): whether to use objects or not when constructing graph
        num_waypoints (int): number of way points returned
        waypoint_resolution (float): resolution of adjacent way points
        use_floor_plane (bool): whether to load a flat floor plane into the simulator
    """
    log.info("TraversableScene model: {}".format(scene_model))
    self.scene_model = scene_model

    # Create traversable map
    self._trav_map = TraversableMap(
        map_resolution=trav_map_resolution,
        default_erosion_radius=default_erosion_radius,
        trav_map_with_objects=trav_map_with_objects,
        num_waypoints=num_waypoints,
        waypoint_resolution=waypoint_resolution,
    )
    # Run super init
    super().__init__(
        scene_file=scene_file,
        use_floor_plane=use_floor_plane,
    )