{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949638,-0.313350,0.000000,0.000000,0.114453,-0.346862,0.930907,0.000000,-0.291437,0.883228,0.367387,0.000000,-1859664.996210,5635893.745770,2328612.225490,1],    "boundingVolume": {    "region": [1.889431,0.376074,1.889599,0.376323,0.000000,24.470724]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/4_28880.b3dm"}}}