{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950091,-0.311972,0.000000,0.000000,0.174264,-0.530708,0.829446,0.000000,-0.258220,0.786392,0.561169,0.000000,-1648701.801909,5021010.408442,3559003.032391,1],    "boundingVolume": {    "region": [1.888015,0.595739,1.888115,0.595855,0.000000,7.239801]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/15/13_1353190.b3dm"}}}