{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950382,-0.311084,0.000000,0.000000,0.173994,-0.531561,0.828957,0.000000,-0.257332,0.786164,0.561895,0.000000,-1643034.503985,5019572.041420,3563618.710204,1],    "boundingVolume": {    "region": [1.887081,0.596625,1.887179,0.596724,0.000000,8.795234]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/7_1394420.b3dm"}}}