{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898676,-0.438612,0.000000,0.000000,0.283656,-0.581186,0.762733,0.000000,-0.333602,0.683520,0.649238,0.000000,-2130767.740220,4365749.114376,4119022.995184,1],    "boundingVolume": {    "region": [2.024800,0.706545,2.024901,0.706619,0.000000,6.017495]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/1/7_1819192.b3dm"}}}