{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948804,-0.315864,0.000000,0.000000,0.176271,-0.529489,0.829801,0.000000,-0.261554,0.785666,0.560641,0.000000,-1669986.758916,5016367.688750,3555647.070468,1],    "boundingVolume": {    "region": [1.892116,0.595048,1.892212,0.595271,0.000000,8.751269]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/13_1178985.b3dm"}}}