{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950258,-0.311463,0.000000,0.000000,0.173993,-0.530843,0.829417,0.000000,-0.257789,0.786502,0.561212,0.000000,-1645952.312799,5021716.407696,3559277.716747,1],    "boundingVolume": {    "region": [1.887479,0.595791,1.887579,0.595908,0.000000,8.819647]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/13_1429525.b3dm"}}}