{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.871389,-0.490593,0.000000,0.000000,0.211871,-0.376325,0.901937,0.000000,-0.441927,0.784948,0.434231,0.000000,-2820453.608152,5009670.144253,2752781.769780,1],    "boundingVolume": {    "region": [2.083511,0.449144,2.083623,0.449225,0.000000,32.360394]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/1/4_226835.b3dm"}}}