{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950824,-0.309733,0.000000,0.000000,0.173319,-0.532059,0.828779,0.000000,-0.256158,0.786359,0.562159,0.000000,-1635544.408268,5020819.100915,3565295.730168,1],    "boundingVolume": {    "region": [1.885626,0.596909,1.885791,0.597078,0.000000,8.758258]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/2/4_1388500.b3dm"}}}