{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948873,-0.315659,0.000000,0.000000,0.176481,-0.530504,0.829108,0.000000,-0.261164,0.785061,0.561670,0.000000,-1667500.230236,5012519.681344,3562190.643454,1],    "boundingVolume": {    "region": [1.891878,0.596350,1.892016,0.596456,0.000000,8.818306]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/13_1112860.b3dm"}}}