{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950716,-0.310062,0.000000,0.000000,0.173201,-0.531072,0.829436,0.000000,-0.256635,0.786900,0.561184,0.000000,-1638583.996174,5024252.106922,3559100.213457,1],    "boundingVolume": {    "region": [1.885997,0.595758,1.886112,0.595873,0.000000,8.784505]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/13_1425035.b3dm"}}}