{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949694,-0.313180,0.000000,0.000000,0.174679,-0.529700,0.830003,0.000000,-0.259395,0.786596,0.560340,0.000000,-1656201.211507,5022298.498599,3553735.161482,1],    "boundingVolume": {    "region": [1.889255,0.594663,1.889417,0.594929,0.000000,8.815682]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/12_1376642.b3dm"}}}