def reconstruction_from_json()

in opensfm/io.py [0:0]

• 39 lines of code
• 16 McCabe index (conditional complexity)

def reconstruction_from_json(obj: Dict[str, Any]) -> types.Reconstruction:
    """
    Read a reconstruction from a json object
    """
    reconstruction = types.Reconstruction()

    # Extract cameras
    for key, value in obj["cameras"].items():
        camera = camera_from_json(key, value)
        reconstruction.add_camera(camera)

    # Extract camera biases
    if "biases" in obj:
        for key, value in obj["biases"].items():
            transform = bias_from_json(value)
            reconstruction.set_bias(key, transform)

    # Extract rig models
    if "rig_cameras" in obj:
        for key, value in obj["rig_cameras"].items():
            reconstruction.add_rig_camera(rig_camera_from_json(key, value))

    # Extract rig instances from shots
    if "rig_instances" in obj:
        for key, value in obj["rig_instances"].items():
            rig_instance_from_json(reconstruction, key, value)

    # Extract shots
    rig_shots = rig_instance_camera_per_shot(obj)
    for key, value in obj["shots"].items():
        shot_in_reconstruction_from_json(
            reconstruction,
            key,
            value,
            rig_camera_id=rig_shots[key][1] if key in rig_shots else None,
            rig_instance_id=rig_shots[key][0] if key in rig_shots else None,
            is_pano_shot=False,
        )

    # Extract points
    if "points" in obj:
        for key, value in obj["points"].items():
            point_from_json(reconstruction, key, value)

    # Extract pano_shots
    if "pano_shots" in obj:
        for key, value in obj["pano_shots"].items():
            shot_in_reconstruction_from_json(
                reconstruction, key, value, is_pano_shot=True
            )

    # Extract reference topocentric frame
    if "reference_lla" in obj:
        lla = obj["reference_lla"]
        reconstruction.reference = geo.TopocentricConverter(
            lla["latitude"], lla["longitude"], lla["altitude"]
        )

    return reconstruction