{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950088,-0.311982,0.000000,0.000000,0.174266,-0.530699,0.829452,0.000000,-0.258230,0.786395,0.561160,0.000000,-1648763.307886,5021027.188621,3558951.214800,1],    "boundingVolume": {    "region": [1.888025,0.595729,1.888125,0.595846,0.000000,8.583415]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/15/13_1428944.b3dm"}}}