{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950344,-0.311201,0.000000,0.000000,0.173731,-0.530539,0.829666,0.000000,-0.257650,0.786812,0.560841,0.000000,-1645061.886868,5023688.140822,3556922.038755,1],    "boundingVolume": {    "region": [1.887203,0.595343,1.887302,0.595460,0.000000,8.812426]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/9_1454669.b3dm"}}}