{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950669,-0.310209,0.000000,0.000000,0.173180,-0.530731,0.829659,0.000000,-0.256827,0.787073,0.560853,0.000000,-1639802.049081,5025354.857741,3556995.894054,1],    "boundingVolume": {    "region": [1.886151,0.595358,1.886267,0.595473,0.000000,8.783670]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/9_1345011.b3dm"}}}