{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950073,-0.312027,0.000000,0.000000,0.173977,-0.529735,0.830128,0.000000,-0.258479,0.787030,0.560154,0.000000,-1650351.130226,5025065.593357,3552552.858607,1],    "boundingVolume": {    "region": [1.888040,0.594506,1.888204,0.594637,0.000000,11.279145]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/7_1378025.b3dm"}}}