{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950558,-0.310547,0.000000,0.000000,0.173555,-0.531236,0.829257,0.000000,-0.256981,0.786597,0.561449,0.000000,-1640792.951318,5022328.199257,3560786.166868,1],    "boundingVolume": {    "region": [1.886516,0.596087,1.886614,0.596185,0.000000,8.780530]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/1_1426971.b3dm"}}}