{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950324,-0.311264,0.000000,0.000000,0.173719,-0.530384,0.829768,0.000000,-0.257734,0.786892,0.560691,0.000000,-1645597.651502,5024193.726814,3555966.410511,1],    "boundingVolume": {    "region": [1.887269,0.595161,1.887369,0.595278,0.000000,8.688473]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/8_1454115.b3dm"}}}