{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950493,-0.310747,0.000000,0.000000,0.173478,-0.530625,0.829664,0.000000,-0.257274,0.786933,0.560844,0.000000,-1642659.229811,5024459.504700,3556942.772095,1],    "boundingVolume": {    "region": [1.886725,0.595347,1.886825,0.595464,0.000000,8.772266]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/1/9_1450941.b3dm"}}}