{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949087,-0.315014,0.000000,0.000000,0.116116,-0.349840,0.929585,0.000000,-0.292563,0.881448,0.370751,0.000000,-1866867.848408,5624585.128438,2349949.127311,1],    "boundingVolume": {    "region": [1.891213,0.379759,1.891321,0.379875,0.000000,86.206870]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/16/20_76600.b3dm"}}}