{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.871352,-0.490658,0.000000,0.000000,0.211837,-0.376198,0.901998,0.000000,-0.442015,0.784969,0.434103,0.000000,-2821015.250157,5009801.933550,2751971.761789,1],    "boundingVolume": {    "region": [2.083585,0.449002,2.083697,0.449083,0.000000,61.012005]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/2/2_223753.b3dm"}}}