{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949416,-0.314020,0.000000,0.000000,0.175400,-0.530309,0.829462,0.000000,-0.259920,0.785848,0.561145,0.000000,-1659556.459958,5017538.168304,3558855.978817,1],    "boundingVolume": {    "region": [1.890172,0.595728,1.890271,0.595810,0.000000,8.783543]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/6_1364102.b3dm"}}}