{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950718,-0.310056,0.000000,0.000000,0.173200,-0.531080,0.829431,0.000000,-0.256629,0.786897,0.561191,0.000000,-1638545.290218,5024234.434175,3559142.694560,1],    "boundingVolume": {    "region": [1.885991,0.595766,1.886106,0.595881,0.000000,8.784505]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/13_1425136.b3dm"}}}