{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.951627,-0.307255,0.000000,0.000000,0.114783,-0.355504,0.927600,0.000000,-0.284741,0.881898,0.375738,0.000000,-1816976.142947,5627523.192317,2381593.096577,1],    "boundingVolume": {    "region": [1.883092,0.385163,1.883115,0.385224,0.000000,4.154475]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/6/15/49.b3dm"}}}