{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950280,-0.311398,0.000000,0.000000,0.173703,-0.530083,0.829963,0.000000,-0.257907,0.787043,0.560400,0.000000,-1646695.562776,5025151.890474,3554116.234245,1],    "boundingVolume": {    "region": [1.887410,0.594810,1.887510,0.594927,0.000000,8.725957]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/5_1346721.b3dm"}}}