{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950599,-0.310420,0.000000,0.000000,0.173592,-0.531591,0.829021,0.000000,-0.256803,0.786406,0.561799,0.000000,-1639655.429726,5021111.021547,3563011.021636,1],    "boundingVolume": {    "region": [1.886383,0.596510,1.886480,0.596608,0.000000,13.019579]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/5/6_1391007.b3dm"}}}