{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.897631,-0.440748,0.000000,0.000000,0.285533,-0.581520,0.761778,0.000000,-0.334803,0.681863,0.650361,0.000000,-2138448.792843,4355187.235879,4126169.014344,1],    "boundingVolume": {    "region": [2.027152,0.707946,2.027303,0.708174,0.000000,18.456261]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/2_1796824.b3dm"}}}