{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.897469,-0.441077,0.000000,0.000000,0.283291,-0.576418,0.766478,0.000000,-0.337136,0.685980,0.644803,0.000000,-2153300.449529,4381373.620801,4090808.041614,1],    "boundingVolume": {    "region": [2.027531,0.700731,2.027658,0.700800,0.000000,11.629821]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/15/9_859589.b3dm"}}}