{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949107,-0.314955,0.000000,0.000000,0.116075,-0.349788,0.929610,0.000000,-0.292516,0.881490,0.370688,0.000000,-1866569.007954,5624851.941714,2349550.537443,1],    "boundingVolume": {    "region": [1.891151,0.379692,1.891259,0.379807,0.000000,65.249220]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/16/19_75903.b3dm"}}}