{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950553,-0.310563,0.000000,0.000000,0.173701,-0.531654,0.828959,0.000000,-0.256901,0.786307,0.561892,0.000000,-1640282.475061,5020485.258449,3563600.178731,1],    "boundingVolume": {    "region": [1.886532,0.596622,1.886630,0.596721,0.000000,12.343590]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/7_1394361.b3dm"}}}