{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948742,-0.316053,0.000000,0.000000,0.176368,-0.529429,0.829819,0.000000,-0.261716,0.785631,0.560614,0.000000,-1671020.034887,5016143.194348,3555479.458959,1],    "boundingVolume": {    "region": [1.892315,0.595016,1.892410,0.595239,0.000000,8.812225]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/13_1074809.b3dm"}}}