{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950520,-0.310664,0.000000,0.000000,0.173550,-0.531000,0.829409,0.000000,-0.257125,0.786711,0.561224,0.000000,-1641711.336706,5023051.404768,3559352.112818,1],    "boundingVolume": {    "region": [1.886630,0.595806,1.886745,0.595921,0.000000,8.818020]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/13/13_1425584.b3dm"}}}