{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.871354,-0.490654,0.000000,0.000000,0.211806,-0.376146,0.902027,0.000000,-0.442027,0.784996,0.434043,0.000000,-2821086.604290,5009974.333816,2751587.330493,1],    "boundingVolume": {    "region": [2.083581,0.448935,2.083693,0.449016,0.000000,50.372445]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/2/1_221585.b3dm"}}}