{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950742,-0.309984,0.000000,0.000000,0.173094,-0.530890,0.829575,0.000000,-0.256615,0.787054,0.560977,0.000000,-1638450.523175,5025233.047245,3557785.384839,1],    "boundingVolume": {    "region": [1.885915,0.595508,1.886031,0.595623,0.000000,8.732980]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/10_1448927.b3dm"}}}