{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948812,-0.315841,0.000000,0.000000,0.176384,-0.529873,0.829532,0.000000,-0.261450,0.785415,0.561041,0.000000,-1669321.597295,5014772.703851,3558191.227389,1],    "boundingVolume": {    "region": [1.892092,0.595531,1.892188,0.595754,0.000000,8.347233]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/15_1070614.b3dm"}}}