{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898449,-0.439079,0.000000,0.000000,0.283963,-0.581049,0.762723,0.000000,-0.333952,0.683338,0.649250,0.000000,-2133004.320910,4364583.791431,4119099.847653,1],    "boundingVolume": {    "region": [2.025319,0.706561,2.025420,0.706635,0.000000,6.564167]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/7_1819284.b3dm"}}}