{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950583,-0.310469,0.000000,0.000000,0.173627,-0.531605,0.829005,0.000000,-0.256838,0.786378,0.561823,0.000000,-1639880.803488,5020931.302455,3563159.557458,1],    "boundingVolume": {    "region": [1.886434,0.596538,1.886532,0.596637,0.000000,13.834999]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/5/6_1391874.b3dm"}}}