{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949088,-0.315012,0.000000,0.000000,0.176022,-0.530330,0.829316,0.000000,-0.260695,0.785437,0.561361,0.000000,-1664503.041850,5014920.397714,3560226.127927,1],    "boundingVolume": {    "region": [1.891197,0.595976,1.891334,0.596083,0.000000,12.301763]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/9_1373549.b3dm"}}}