{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950166,-0.311743,0.000000,0.000000,0.173872,-0.529945,0.830016,0.000000,-0.258209,0.787000,0.560321,0.000000,-1648628.155379,5024874.212789,3553616.229665,1],    "boundingVolume": {    "region": [1.887742,0.594708,1.887906,0.594839,0.000000,8.743291]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/8_1459730.b3dm"}}}