{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950988,-0.309227,0.000000,0.000000,0.172728,-0.531202,0.829451,0.000000,-0.255949,0.787139,0.561161,0.000000,-1634203.995047,5025783.249902,3558953.238542,1],    "boundingVolume": {    "region": [1.885104,0.595678,1.885249,0.595897,0.000000,8.809593]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/12_1421912.b3dm"}}}