{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950802,-0.309801,0.000000,0.000000,0.172873,-0.530560,0.829832,0.000000,-0.256543,0.787350,0.560594,0.000000,-1637989.552965,5027115.421188,3555353.916160,1],    "boundingVolume": {    "region": [1.885722,0.595046,1.885837,0.595161,0.000000,8.765025]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/5/6_1448360.b3dm"}}}