{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950707,-0.310091,0.000000,0.000000,0.173336,-0.531429,0.829179,0.000000,-0.256580,0.786646,0.561565,0.000000,-1638229.556117,5022640.610853,3561520.760981,1],    "boundingVolume": {    "region": [1.886036,0.596226,1.886134,0.596325,0.000000,8.819616]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/1/3_1427606.b3dm"}}}