{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948809,-0.315849,0.000000,0.000000,0.176265,-0.529498,0.829797,0.000000,-0.261540,0.785666,0.560648,0.000000,-1669896.702791,5016365.581352,3555692.035962,1],    "boundingVolume": {    "region": [1.892100,0.595056,1.892196,0.595279,0.000000,8.751269]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/13_1074125.b3dm"}}}