{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949311,-0.314340,0.000000,0.000000,0.175412,-0.529747,0.829819,0.000000,-0.260297,0.786102,0.560615,0.000000,-1661962.026469,5019149.504425,3555482.389304,1],    "boundingVolume": {    "region": [1.890476,0.594995,1.890638,0.595261,0.000000,10.265112]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/13/13_1370029.b3dm"}}}