{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948774,-0.315956,0.000000,0.000000,0.176132,-0.528900,0.830207,0.000000,-0.261759,0.786028,0.560037,0.000000,-1671291.705664,5018667.082357,3551812.926194,1],    "boundingVolume": {    "region": [1.892212,0.594319,1.892308,0.594542,0.000000,8.745765]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/9_1212790.b3dm"}}}