{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950258,-0.311463,0.000000,0.000000,0.173988,-0.530830,0.829426,0.000000,-0.257792,0.786511,0.561198,0.000000,-1645968.319788,5021774.563270,3559188.861109,1],    "boundingVolume": {    "region": [1.887478,0.595774,1.887578,0.595891,0.000000,8.819647]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/13_1429354.b3dm"}}}