{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950750,-0.309958,0.000000,0.000000,0.173086,-0.530914,0.829561,0.000000,-0.256589,0.787047,0.560998,0.000000,-1638285.252328,5025191.793992,3557918.858726,1],    "boundingVolume": {    "region": [1.885888,0.595534,1.886003,0.595648,0.000000,8.812964]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/11_1449023.b3dm"}}}