{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950255,-0.311473,0.000000,0.000000,0.173992,-0.530821,0.829431,0.000000,-0.257802,0.786513,0.561191,0.000000,-1646033.876402,5021784.828336,3559144.359763,1],    "boundingVolume": {    "region": [1.887490,0.595765,1.887589,0.595882,0.000000,8.819647]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/13_1429269.b3dm"}}}