{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948866,-0.315678,0.000000,0.000000,0.176354,-0.530084,0.829404,0.000000,-0.261274,0.785338,0.561232,0.000000,-1668200.157393,5014279.839732,3559403.384684,1],    "boundingVolume": {    "region": [1.891899,0.595820,1.892036,0.595926,0.000000,8.812064]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/8_1147726.b3dm"}}}