{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950539,-0.310605,0.000000,0.000000,0.173736,-0.531679,0.828935,0.000000,-0.256929,0.786273,0.561927,0.000000,-1640461.609128,5020267.253990,3563823.333214,1],    "boundingVolume": {    "region": [1.886577,0.596664,1.886675,0.596763,0.000000,14.464368]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/7_1327916.b3dm"}}}