{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949538,-0.313651,0.000000,0.000000,0.175136,-0.530200,0.829587,0.000000,-0.259654,0.786069,0.560958,0.000000,-1657859.023820,5018947.612450,3557667.510299,1],    "boundingVolume": {    "region": [1.889751,0.595410,1.889913,0.595676,0.000000,8.792672]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/15_1367004.b3dm"}}}