{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950549,-0.310574,0.000000,0.000000,0.173723,-0.531700,0.828924,0.000000,-0.256899,0.786271,0.561943,0.000000,-1640271.490972,5020256.152502,3563925.787722,1],    "boundingVolume": {    "region": [1.886544,0.596684,1.886642,0.596782,0.000000,14.800804]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/7_1394959.b3dm"}}}