{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950100,-0.311945,0.000000,0.000000,0.174189,-0.530532,0.829575,0.000000,-0.258238,0.786522,0.560978,0.000000,-1648815.172662,5021838.701261,3557789.835288,1],    "boundingVolume": {    "region": [1.887986,0.595508,1.888086,0.595625,0.000000,8.791589]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/15/11_1455960.b3dm"}}}