{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949155,-0.314808,0.000000,0.000000,0.116062,-0.349931,0.929558,0.000000,-0.292363,0.881485,0.370820,0.000000,-1865592.781081,5624821.718647,2350392.413543,1],    "boundingVolume": {    "region": [1.890996,0.379835,1.891105,0.379950,0.000000,51.601130]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/14/21_287.b3dm"}}}