{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949050,-0.315125,0.000000,0.000000,0.175393,-0.528224,0.830793,0.000000,-0.261257,0.786817,0.559163,0.000000,-1668080.484877,5023690.008744,3546254.699648,1],    "boundingVolume": {    "region": [1.891338,0.593280,1.891432,0.593471,0.000000,5.911124]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/18/19_1321671.b3dm"}}}