{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950871,-0.309587,0.000000,0.000000,0.173085,-0.531615,0.829112,0.000000,-0.256142,0.786718,0.561664,0.000000,-1635433.846068,5023100.652791,3562152.516628,1],    "boundingVolume": {    "region": [1.885482,0.596286,1.885628,0.596506,0.000000,8.796238]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/15_1324828.b3dm"}}}