{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898463,-0.439049,0.000000,0.000000,0.283839,-0.580843,0.762927,0.000000,-0.334020,0.683532,0.649011,0.000000,-2133433.694695,4365820.974419,4117576.364826,1],    "boundingVolume": {    "region": [2.025286,0.706246,2.025387,0.706321,0.000000,17.966009]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/2_1817816.b3dm"}}}