{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898316,-0.439350,0.000000,0.000000,0.284389,-0.581476,0.762239,0.000000,-0.333945,0.682800,0.649819,0.000000,-2132962.714044,4361159.750930,4122722.055819,1],    "boundingVolume": {    "region": [2.025618,0.707310,2.025724,0.707383,0.000000,11.006872]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/21/6_1802991.b3dm"}}}