{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950486,-0.310767,0.000000,0.000000,0.173399,-0.530343,0.829861,0.000000,-0.257352,0.787116,0.560552,0.000000,-1643157.983862,5025619.852841,3555085.163028,1],    "boundingVolume": {    "region": [1.886705,0.594979,1.886888,0.595125,0.000000,8.806250]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/13/14_1449521.b3dm"}}}