{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949372,-0.314153,0.000000,0.000000,0.175181,-0.529398,0.830090,0.000000,-0.260229,0.786413,0.560211,0.000000,-1661522.236615,5021124.281696,3552916.027379,1],    "boundingVolume": {    "region": [1.890280,0.594507,1.890442,0.594773,0.000000,8.817751]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/11_1461848.b3dm"}}}