{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949854,-0.312694,0.000000,0.000000,0.114592,-0.348090,0.930431,0.000000,-0.290676,0.882972,0.368602,0.000000,-1854814.522582,5634281.225763,2336318.255763,1],    "boundingVolume": {    "region": [1.888739,0.377380,1.888908,0.377629,0.000000,21.061102]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/1/9_14779.b3dm"}}}