{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950155,-0.311777,0.000000,0.000000,0.173915,-0.530015,0.829962,0.000000,-0.258220,0.786939,0.560401,0.000000,-1648699.015163,5024489.503946,3554123.861386,1],    "boundingVolume": {    "region": [1.887777,0.594804,1.887941,0.594935,0.000000,8.799563]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/9_1358304.b3dm"}}}