{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950197,-0.311649,0.000000,0.000000,0.174178,-0.531058,0.829241,0.000000,-0.257888,0.786283,0.561474,0.000000,-1646581.322615,5020321.662833,3560942.713979,1],    "boundingVolume": {    "region": [1.887655,0.596061,1.887793,0.596270,0.000000,8.813532]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/1/2_1431770.b3dm"}}}