{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949141,-0.314850,0.000000,0.000000,0.116073,-0.349912,0.929564,0.000000,-0.292405,0.881478,0.370805,0.000000,-1865857.984880,5624774.413918,2350295.752467,1],    "boundingVolume": {    "region": [1.891041,0.379818,1.891150,0.379934,0.000000,71.051956]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/14/21_77439.b3dm"}}}