{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949089,-0.315008,0.000000,0.000000,0.116099,-0.349794,0.929605,0.000000,-0.292564,0.881469,0.370701,0.000000,-1866873.775701,5624714.670779,2349636.442718,1],    "boundingVolume": {    "region": [1.891207,0.379706,1.891315,0.379822,0.000000,65.375520]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/16/20_76061.b3dm"}}}