{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898343,-0.439295,0.000000,0.000000,0.284083,-0.580940,0.762762,0.000000,-0.334134,0.683292,0.649204,0.000000,-2134162.569953,4364293.085876,4118809.870016,1],    "boundingVolume": {    "region": [2.025559,0.706501,2.025660,0.706575,0.000000,43.122198]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/6_1818850.b3dm"}}}