{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948831,-0.315784,0.000000,0.000000,0.176332,-0.529824,0.829574,0.000000,-0.261416,0.785472,0.560978,0.000000,-1669103.645239,5015131.494962,3557790.466929,1],    "boundingVolume": {    "region": [1.892031,0.595455,1.892127,0.595678,0.000000,8.815559]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/5/15_1181738.b3dm"}}}