{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.858845,-0.512235,0.000000,0.000000,0.262066,-0.439395,0.859217,0.000000,-0.439344,0.736631,0.514151,0.000000,-2804679.445487,4702499.076375,3260256.323704,1],    "boundingVolume": {    "region": [2.108499,0.539955,2.108664,0.540080,0.000000,55.438833]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/1/4_220174.b3dm"}}}