{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950473,-0.310808,0.000000,0.000000,0.173161,-0.529538,0.830424,0.000000,-0.257563,0.787644,0.559712,0.000000,-1644494.606620,5028979.075890,3549748.730412,1],    "boundingVolume": {    "region": [1.886838,0.594038,1.886841,0.594040,0.000000,4.136523]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/0/2.b3dm"}}}