{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949080,-0.315035,0.000000,0.000000,0.116118,-0.349820,0.929593,0.000000,-0.292586,0.881448,0.370732,0.000000,-1867010.744858,5624586.407684,2349833.317637,1],    "boundingVolume": {    "region": [1.891236,0.379740,1.891344,0.379855,0.000000,86.206870]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/16/20_76419.b3dm"}}}