threedtiles.py 文件源码

def ThreeDTilesRead(table, column, bounds, lod):

    session = Session(table, column)
    # offsets = [round(off, 2) for off in list_from_str(offsets)]
    box = list_from_str(bounds)
    # requested = [scales, offsets]
    stored_patches = session.lopocstable.filter_stored_output()
    schema = stored_patches['point_schema']
    pcid = stored_patches['pcid']
    # scales = [scale] * 3
    scales = stored_patches['scales']
    offsets = stored_patches['offsets']

    [tile, npoints] = get_points(session, box, lod, offsets, pcid, scales, schema)

    if Config.DEBUG:
        tile.sync()
        print("NPOINTS: ", npoints)

    # build flask response
    response = make_response(tile.to_array().tostring())
    response.headers['content-type'] = 'application/octet-stream'
    return response