{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.951030,-0.309097,0.000000,0.000000,0.172658,-0.531235,0.829444,0.000000,-0.255840,0.787168,0.561171,0.000000,-1633503.400468,5025964.172542,3559018.931132,1],    "boundingVolume": {    "region": [1.884967,0.595690,1.885113,0.595910,0.000000,8.162085]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/12_1340129.b3dm"}}}