{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950544,-0.310589,0.000000,0.000000,0.173726,-0.531682,0.828935,0.000000,-0.256915,0.786278,0.561927,0.000000,-1640373.973959,5020294.926548,3563824.680617,1],    "boundingVolume": {    "region": [1.886560,0.596664,1.886658,0.596763,0.000000,14.800804]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/7_1394852.b3dm"}}}