{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.943992,-0.329969,0.000000,0.000000,0.184129,-0.526766,0.829828,0.000000,-0.273243,0.781706,0.560601,0.000000,-1744616.373148,4991083.530126,3555395.563465,1],    "boundingVolume": {    "region": [1.907019,0.595054,1.907115,0.595169,0.000000,8.579476]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/1_1276816.b3dm"}}}