{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949690,-0.313193,0.000000,0.000000,0.174683,-0.529689,0.830009,0.000000,-0.259408,0.786598,0.560332,0.000000,-1656280.345251,5022309.423856,3553683.190493,1],    "boundingVolume": {    "region": [1.889269,0.594653,1.889431,0.594919,0.000000,8.815682]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/12_1376749.b3dm"}}}