{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949518,-0.313712,0.000000,0.000000,0.175187,-0.530243,0.829549,0.000000,-0.259693,0.786016,0.561016,0.000000,-1658102.101857,5018607.881457,3558031.016284,1],    "boundingVolume": {    "region": [1.889815,0.595479,1.889977,0.595745,0.000000,8.487408]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/15_1366556.b3dm"}}}