{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949308,-0.314348,0.000000,0.000000,0.175458,-0.529870,0.829730,0.000000,-0.260276,0.786015,0.560746,0.000000,-1661827.101317,5018597.575538,3556318.815307,1],    "boundingVolume": {    "region": [1.890497,0.595234,1.890635,0.595340,0.000000,8.740105]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/1/2_1368585.b3dm"}}}