{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950628,-0.310332,0.000000,0.000000,0.173703,-0.532099,0.828672,0.000000,-0.256620,0.786096,0.562316,0.000000,-1638494.065829,5019140.168804,3566298.440624,1],    "boundingVolume": {    "region": [1.886256,0.597100,1.886421,0.597269,0.000000,8.779138]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/6/6_1384483.b3dm"}}}