{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.951860,-0.306532,0.000000,0.000000,0.112599,-0.349649,0.930090,0.000000,-0.284842,0.884509,0.369471,0.000000,-1817593.284964,5644099.815190,2341828.990040,1],    "boundingVolume": {    "region": [1.882261,0.378379,1.882425,0.378500,0.000000,18.620205]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/21/11_45805.b3dm"}}}