{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949363,-0.314181,0.000000,0.000000,0.175248,-0.529549,0.829980,0.000000,-0.260217,0.786300,0.560375,0.000000,-1661446.643453,5020405.685434,3553959.666386,1],    "boundingVolume": {    "region": [1.890309,0.594706,1.890471,0.594971,0.000000,8.789339]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/12_1461924.b3dm"}}}