{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950342,-0.311206,0.000000,0.000000,0.173870,-0.530954,0.829371,0.000000,-0.257562,0.786528,0.561280,0.000000,-1644503.170040,5021883.694349,3559708.607594,1],    "boundingVolume": {    "region": [1.887208,0.595873,1.887308,0.595990,0.000000,8.808885]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/14_1429907.b3dm"}}}