{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950548,-0.310579,0.000000,0.000000,0.173569,-0.531220,0.829264,0.000000,-0.257010,0.786595,0.561439,0.000000,-1640975.504440,5022313.729944,3560722.876857,1],    "boundingVolume": {    "region": [1.886550,0.596075,1.886647,0.596173,0.000000,8.780530]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/1_1426847.b3dm"}}}