{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950391,-0.311057,0.000000,0.000000,0.173976,-0.531559,0.828962,0.000000,-0.257310,0.786177,0.561888,0.000000,-1642898.386384,5019649.173788,3563573.126187,1],    "boundingVolume": {    "region": [1.887052,0.596617,1.887150,0.596715,0.000000,8.795234]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/7_1394267.b3dm"}}}