{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.895911,-0.444235,0.000000,0.000000,0.283893,-0.572542,0.769155,0.000000,-0.340746,0.687199,0.641600,0.000000,-2176322.743009,4389101.178883,4070427.399282,1],    "boundingVolume": {    "region": [2.031062,0.696528,2.031170,0.696635,0.000000,39.250883]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/2/1/2_619500.b3dm"}}}