{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.896919,-0.442195,0.000000,0.000000,0.282282,-0.572562,0.769734,0.000000,-0.339438,0.688494,0.640904,0.000000,-2167966.623330,4397359.688935,4066000.527388,1],    "boundingVolume": {    "region": [2.028749,0.695619,2.028932,0.695731,0.000000,44.253801]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/1/2_448442.b3dm"}}}