{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950540,-0.310603,0.000000,0.000000,0.173356,-0.530522,0.829756,0.000000,-0.257183,0.787060,0.560708,0.000000,-1642080.043434,5025265.384841,3556077.469281,1],    "boundingVolume": {    "region": [1.886566,0.595184,1.886681,0.595298,0.000000,8.247159]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/7_1345546.b3dm"}}}