{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950053,-0.312087,0.000000,0.000000,0.174024,-0.529761,0.830102,0.000000,-0.258521,0.786988,0.560193,0.000000,-1650617.861551,5024798.223449,3552805.409636,1],    "boundingVolume": {    "region": [1.888104,0.594554,1.888267,0.594685,0.000000,16.856485]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/7_1458721.b3dm"}}}