{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950632,-0.310321,0.000000,0.000000,0.173620,-0.531866,0.828840,0.000000,-0.256663,0.786259,0.562069,0.000000,-1638767.137251,5020177.920912,3564722.577271,1],    "boundingVolume": {    "region": [1.886244,0.596800,1.886409,0.596969,0.000000,8.821139]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/6/4_1396420.b3dm"}}}