{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.858661,-0.512544,0.000000,0.000000,0.262323,-0.439468,0.859101,0.000000,-0.439549,0.736373,0.514346,0.000000,-2805987.619394,4700854.237829,3261494.160497,1],    "boundingVolume": {    "region": [2.108859,0.540182,2.109023,0.540307,0.000000,16.549433]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/3/6_244519.b3dm"}}}