{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949496,-0.313779,0.000000,0.000000,0.175393,-0.530741,0.829187,0.000000,-0.259634,0.785652,0.561553,0.000000,-1657728.834014,5016291.660409,3561446.555554,1],    "boundingVolume": {    "region": [1.889917,0.596221,1.890016,0.596302,0.000000,8.197185]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/12_1358452.b3dm"}}}