{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949046,-0.315136,0.000000,0.000000,0.176070,-0.530241,0.829363,0.000000,-0.260813,0.785448,0.561292,0.000000,-1665255.727928,5014986.215610,3559784.385144,1],    "boundingVolume": {    "region": [1.891328,0.595892,1.891465,0.595999,0.000000,11.245242]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/8_1374308.b3dm"}}}