{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950168,-0.311737,0.000000,0.000000,0.173869,-0.529949,0.830014,0.000000,-0.258204,0.786999,0.560324,0.000000,-1648591.732333,5024873.764853,3553633.643201,1],    "boundingVolume": {    "region": [1.887735,0.594711,1.887899,0.594842,0.000000,8.743291]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/8_1459739.b3dm"}}}