{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950110,-0.311916,0.000000,0.000000,0.173915,-0.529753,0.830129,0.000000,-0.258388,0.787061,0.560152,0.000000,-1649770.080104,5025263.885786,3552542.321962,1],    "boundingVolume": {    "region": [1.887924,0.594504,1.888088,0.594635,0.000000,11.279145]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/7_1378033.b3dm"}}}