{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949688,-0.313197,0.000000,0.000000,0.174685,-0.529688,0.830009,0.000000,-0.259411,0.786597,0.560331,0.000000,-1656300.388215,5022305.793178,3553679.008233,1],    "boundingVolume": {    "region": [1.889272,0.594652,1.889434,0.594918,0.000000,8.815682]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/12_1376754.b3dm"}}}