{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949129,-0.314888,0.000000,0.000000,0.116031,-0.349737,0.929635,0.000000,-0.292463,0.881534,0.370625,0.000000,-1866226.939642,5625132.746947,2349152.643975,1],    "boundingVolume": {    "region": [1.891081,0.379624,1.891190,0.379739,0.000000,59.537360]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/15/19_75272.b3dm"}}}