{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949884,-0.312602,0.000000,0.000000,0.174467,-0.530142,0.829766,0.000000,-0.258842,0.786526,0.560694,0.000000,-1652669.459366,5021858.714093,3555984.979106,1],    "boundingVolume": {    "region": [1.888646,0.595158,1.888810,0.595289,0.000000,8.808103]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/12_1356666.b3dm"}}}