{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950754,-0.309945,0.000000,0.000000,0.173242,-0.531419,0.829205,0.000000,-0.256467,0.786710,0.561527,0.000000,-1637510.637311,5023046.476306,3561280.591850,1],    "boundingVolume": {    "region": [1.885859,0.596120,1.886005,0.596340,0.000000,8.803725]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/15/14_1423423.b3dm"}}}