{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950479,-0.310788,0.000000,0.000000,0.173808,-0.531556,0.828999,0.000000,-0.257100,0.786285,0.561832,0.000000,-1641555.144914,5020340.625304,3563220.455269,1],    "boundingVolume": {    "region": [1.886770,0.596550,1.886868,0.596648,0.000000,13.374002]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/6_1392290.b3dm"}}}