{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950559,-0.310543,0.000000,0.000000,0.173554,-0.531240,0.829254,0.000000,-0.256977,0.786596,0.561453,0.000000,-1640766.039326,5022318.483116,3560812.096995,1],    "boundingVolume": {    "region": [1.886512,0.596092,1.886609,0.596190,0.000000,8.780530]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/1_1427047.b3dm"}}}