{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950989,-0.309225,0.000000,0.000000,0.172728,-0.531205,0.829450,0.000000,-0.255947,0.787138,0.561163,0.000000,-1634191.163968,5025776.372873,3558968.737224,1],    "boundingVolume": {    "region": [1.885102,0.595681,1.885248,0.595900,0.000000,8.809593]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/12_1421922.b3dm"}}}