{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950648,-0.310272,0.000000,0.000000,0.173210,-0.530700,0.829672,0.000000,-0.256883,0.787069,0.560833,0.000000,-1640162.791038,5025328.165183,3556868.141047,1],    "boundingVolume": {    "region": [1.886217,0.595334,1.886333,0.595448,0.000000,8.213607]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/9_1450815.b3dm"}}}