{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950360,-0.311152,0.000000,0.000000,0.173630,-0.530324,0.829824,0.000000,-0.257659,0.786977,0.560606,0.000000,-1645117.243411,5024734.434518,3555428.280384,1],    "boundingVolume": {    "region": [1.887151,0.595059,1.887251,0.595176,0.000000,8.799308]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/7_1453360.b3dm"}}}