{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949119,-0.314919,0.000000,0.000000,0.116064,-0.349800,0.929607,0.000000,-0.292482,0.881498,0.370696,0.000000,-1866350.363359,5624903.637200,2349600.131601,1],    "boundingVolume": {    "region": [1.891113,0.379700,1.891222,0.379815,0.000000,60.795093]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/15/19_76020.b3dm"}}}