{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.897631,-0.440748,0.000000,0.000000,0.285538,-0.581530,0.761768,0.000000,-0.334799,0.681854,0.650373,0.000000,-2138423.481927,4355129.858673,4126242.199605,1],    "boundingVolume": {    "region": [2.027152,0.707961,2.027304,0.708189,0.000000,18.456261]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/2_1796944.b3dm"}}}