{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949100,-0.314975,0.000000,0.000000,0.116135,-0.349946,0.929543,0.000000,-0.292514,0.881419,0.370858,0.000000,-1866552.768436,5624403.650150,2350629.093081,1],    "boundingVolume": {    "region": [1.891172,0.379875,1.891281,0.379990,0.000000,68.927894]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/16/21_898.b3dm"}}}