{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949446,-0.313930,0.000000,0.000000,0.175473,-0.530699,0.829197,0.000000,-0.259761,0.785620,0.561539,0.000000,-1658544.861521,5016086.838051,3561355.726838,1],    "boundingVolume": {    "region": [1.890076,0.596203,1.890175,0.596285,0.000000,8.656528]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/12_1443829.b3dm"}}}