{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950545,-0.310586,0.000000,0.000000,0.173700,-0.531608,0.828988,0.000000,-0.256929,0.786330,0.561848,0.000000,-1640464.612376,5020625.002950,3563321.328639,1],    "boundingVolume": {    "region": [1.886557,0.596569,1.886655,0.596667,0.000000,10.889478]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/6_1328889.b3dm"}}}