{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950510,-0.310694,0.000000,0.000000,0.173808,-0.531734,0.828885,0.000000,-0.256986,0.786201,0.562002,0.000000,-1640828.196370,5019808.315302,3564297.806973,1],    "boundingVolume": {    "region": [1.886670,0.596754,1.886768,0.596853,0.000000,6.086998]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/8_1395665.b3dm"}}}