{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949361,-0.314189,0.000000,0.000000,0.175246,-0.529526,0.829995,0.000000,-0.260228,0.786312,0.560353,0.000000,-1661517.299253,5020482.081510,3553819.655822,1],    "boundingVolume": {    "region": [1.890317,0.594679,1.890479,0.594945,0.000000,8.789339]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/12_1379448.b3dm"}}}