{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948970,-0.315367,0.000000,0.000000,0.175983,-0.529550,0.829823,0.000000,-0.261149,0.785824,0.560608,0.000000,-1667400.152644,5017377.029661,3555438.247878,1],    "boundingVolume": {    "region": [1.891592,0.595024,1.891687,0.595215,0.000000,8.807851]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/21/29_1074927.b3dm"}}}