{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950476,-0.310798,0.000000,0.000000,0.173815,-0.531557,0.828997,0.000000,-0.257107,0.786280,0.561836,0.000000,-1641598.923867,5020310.309845,3563242.847640,1],    "boundingVolume": {    "region": [1.886780,0.596554,1.886877,0.596653,0.000000,14.063257]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/6_1392431.b3dm"}}}