{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949062,-0.315088,0.000000,0.000000,0.115876,-0.349024,0.929922,0.000000,-0.292740,0.881748,0.369897,0.000000,-1867989.840446,5626486.293841,2344536.525429,1],    "boundingVolume": {    "region": [1.891293,0.378864,1.891398,0.378934,0.000000,37.599186]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/6/21_5923.b3dm"}}}