{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949074,-0.315053,0.000000,0.000000,0.116167,-0.349944,0.929540,0.000000,-0.292585,0.881392,0.370866,0.000000,-1867008.697236,5624230.416109,2350681.154863,1],    "boundingVolume": {    "region": [1.891254,0.379884,1.891363,0.379999,0.000000,67.897340]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/17/21_1026.b3dm"}}}