{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950148,-0.311799,0.000000,0.000000,0.173929,-0.530015,0.829959,0.000000,-0.258238,0.786930,0.560405,0.000000,-1648810.645118,5024433.377704,3554151.237358,1],    "boundingVolume": {    "region": [1.887800,0.594809,1.887964,0.594941,0.000000,8.799563]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/9_1358272.b3dm"}}}