{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949380,-0.314131,0.000000,0.000000,0.175391,-0.530074,0.829614,0.000000,-0.260060,0.785964,0.560919,0.000000,-1660445.524200,5018272.908021,3557414.734903,1],    "boundingVolume": {    "region": [1.890256,0.595362,1.890418,0.595628,0.000000,8.742126]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/14_1367434.b3dm"}}}