{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.951495,-0.307665,0.000000,0.000000,0.114540,-0.354232,0.928117,0.000000,-0.285282,0.882272,0.374448,0.000000,-1820420.178115,5629892.087075,2373405.382712,1],    "boundingVolume": {    "region": [1.883533,0.383800,1.883535,0.383802,0.000000,0.811088]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/6/20/30.b3dm"}}}