{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949732,-0.313064,0.000000,0.000000,0.115368,-0.349989,0.929623,0.000000,-0.290765,0.882082,0.370657,0.000000,-1855391.415979,5628631.986788,2349352.649823,1],    "boundingVolume": {    "region": [1.889145,0.379625,1.889283,0.379807,0.000000,42.444313]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/8_73485.b3dm"}}}