{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949635,-0.313359,0.000000,0.000000,0.174802,-0.529738,0.829953,0.000000,-0.259528,0.786499,0.560415,0.000000,-1657046.325216,5021680.163195,3554211.761223,1],    "boundingVolume": {    "region": [1.889443,0.594754,1.889605,0.595019,0.000000,8.789707]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/12_1372746.b3dm"}}}