{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950484,-0.310774,0.000000,0.000000,0.173802,-0.531564,0.828995,0.000000,-0.257087,0.786285,0.561838,0.000000,-1641470.327172,5020343.132082,3563255.759312,1],    "boundingVolume": {    "region": [1.886754,0.596556,1.886852,0.596655,0.000000,14.063257]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/6_1392518.b3dm"}}}