{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950697,-0.310122,0.000000,0.000000,0.173237,-0.531068,0.829431,0.000000,-0.256683,0.786879,0.561191,0.000000,-1638890.818647,5024121.182076,3559143.469025,1],    "boundingVolume": {    "region": [1.886059,0.595766,1.886175,0.595881,0.000000,8.747232]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/13_1343386.b3dm"}}}