{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949028,-0.315192,0.000000,0.000000,0.116060,-0.349452,0.929738,0.000000,-0.292778,0.881540,0.370363,0.000000,-1868233.726396,5625164.891270,2347491.179039,1],    "boundingVolume": {    "region": [1.891437,0.379381,1.891473,0.379419,0.000000,4.631867]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/18/16.b3dm"}}}