{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948969,-0.315368,0.000000,0.000000,0.175991,-0.529573,0.829807,0.000000,-0.261145,0.785809,0.560632,0.000000,-1667375.200923,5017276.615703,3555590.620380,1],    "boundingVolume": {    "region": [1.891593,0.595053,1.891688,0.595244,0.000000,8.807851]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/21/29_1074456.b3dm"}}}