{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949624,-0.313391,0.000000,0.000000,0.175254,-0.531048,0.829020,0.000000,-0.259260,0.785598,0.561801,0.000000,-1655343.979154,5015950.949202,3563024.710507,1],    "boundingVolume": {    "region": [1.889482,0.596478,1.889635,0.596646,0.000000,11.216612]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/7/7_1337720.b3dm"}}}