{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950577,-0.310488,0.000000,0.000000,0.173250,-0.530414,0.829846,0.000000,-0.257117,0.787178,0.560573,0.000000,-1641652.356329,5026015.704472,3555220.216693,1],    "boundingVolume": {    "region": [1.886411,0.595005,1.886594,0.595151,0.000000,8.807318]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/14_1449646.b3dm"}}}