{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949126,-0.314895,0.000000,0.000000,0.175944,-0.530313,0.829344,0.000000,-0.260607,0.785496,0.561320,0.000000,-1663941.593662,5015293.491098,3559964.770384,1],    "boundingVolume": {    "region": [1.891074,0.595927,1.891211,0.596033,0.000000,17.644930]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/9_1361083.b3dm"}}}