{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949405,-0.314054,0.000000,0.000000,0.175424,-0.530320,0.829450,0.000000,-0.259944,0.785828,0.561163,0.000000,-1659709.367290,5017409.613716,3558965.177987,1],    "boundingVolume": {    "region": [1.890207,0.595749,1.890306,0.595831,0.000000,8.783543]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/6_1363526.b3dm"}}}