{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950760,-0.309927,0.000000,0.000000,0.173226,-0.531405,0.829217,0.000000,-0.256456,0.786727,0.561509,0.000000,-1637437.592893,5023154.021561,3561163.276336,1],    "boundingVolume": {    "region": [1.885840,0.596098,1.885985,0.596318,0.000000,8.760186]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/15/14_1423302.b3dm"}}}