{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950882,-0.309552,0.000000,0.000000,0.172907,-0.531135,0.829457,0.000000,-0.256220,0.787057,0.561153,0.000000,-1635932.720840,5025256.923478,3558902.575628,1],    "boundingVolume": {    "region": [1.885446,0.595668,1.885591,0.595888,0.000000,8.608458]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/12_1340211.b3dm"}}}