{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950505,-0.310710,0.000000,0.000000,0.173767,-0.531579,0.828993,0.000000,-0.257033,0.786300,0.561842,0.000000,-1641125.551485,5020437.957324,3563280.797726,1],    "boundingVolume": {    "region": [1.886687,0.596561,1.886785,0.596660,0.000000,18.141249]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/6_1392670.b3dm"}}}