{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950283,-0.311387,0.000000,0.000000,0.173757,-0.530269,0.829834,0.000000,-0.257857,0.786922,0.560593,0.000000,-1646379.966094,5024382.054480,3555342.351280,1],    "boundingVolume": {    "region": [1.887399,0.595043,1.887498,0.595160,0.000000,8.746571]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/7_1453146.b3dm"}}}