{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949654,-0.313300,0.000000,0.000000,0.174842,-0.529971,0.829796,0.000000,-0.259429,0.786365,0.560649,0.000000,-1656416.606699,5020826.087285,3555701.543855,1],    "boundingVolume": {    "region": [1.889381,0.595037,1.889543,0.595302,0.000000,8.721308]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/13_1356970.b3dm"}}}