{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950211,-0.311606,0.000000,0.000000,0.174261,-0.531391,0.829009,0.000000,-0.257780,0.786074,0.561817,0.000000,-1645894.549352,5018989.931361,3563122.117608,1],    "boundingVolume": {    "region": [1.887603,0.596488,1.887755,0.596673,0.000000,8.785472]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/4/3_1398966.b3dm"}}}