{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.951338,-0.308150,0.000000,0.000000,0.171032,-0.528020,0.831831,0.000000,-0.255796,0.789709,0.557609,0.000000,-1633203.715113,5042123.811386,3536379.599304,1],    "boundingVolume": {    "region": [1.883990,0.591459,1.884098,0.591546,0.000000,6.389158]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/6/49/40_1382879.b3dm"}}}