{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950362,-0.311145,0.000000,0.000000,0.173786,-0.530811,0.829481,0.000000,-0.257546,0.786649,0.561117,0.000000,-1644399.365611,5022653.473921,3558677.306261,1],    "boundingVolume": {    "region": [1.887144,0.595677,1.887244,0.595793,0.000000,8.817695]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/12_1428755.b3dm"}}}