{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.895099,-0.445867,0.000000,0.000000,0.283992,-0.570128,0.770910,0.000000,-0.342784,0.688156,0.639485,0.000000,-2189322.940285,4395170.968984,4056974.628918,1],    "boundingVolume": {    "region": [2.032872,0.693766,2.033006,0.693890,0.000000,75.953245]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/1/6_976997.b3dm"}}}