{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949448,-0.313923,0.000000,0.000000,0.175356,-0.530358,0.829440,0.000000,-0.259833,0.785854,0.561178,0.000000,-1658999.157018,5017576.411808,3559060.512146,1],    "boundingVolume": {    "region": [1.890069,0.595767,1.890168,0.595849,0.000000,8.511216]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/6_1363044.b3dm"}}}