{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949096,-0.314987,0.000000,0.000000,0.175826,-0.529787,0.829705,0.000000,-0.260797,0.785816,0.560783,0.000000,-1665153.778589,5017327.724511,3556552.914330,1],    "boundingVolume": {    "region": [1.891170,0.595278,1.891308,0.595385,0.000000,8.631938]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/2_1374785.b3dm"}}}