{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949137,-0.314863,0.000000,0.000000,0.175646,-0.529477,0.829941,0.000000,-0.260770,0.786076,0.560432,0.000000,-1664975.384646,5018978.182689,3554322.033279,1],    "boundingVolume": {    "region": [1.891061,0.594812,1.891156,0.595003,0.000000,8.819396]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/15/28_1372520.b3dm"}}}