{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950513,-0.310684,0.000000,0.000000,0.173697,-0.531412,0.829115,0.000000,-0.257050,0.786424,0.561660,0.000000,-1641233.203246,5021225.430139,3562129.202646,1],    "boundingVolume": {    "region": [1.886660,0.596342,1.886758,0.596441,0.000000,8.601306]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/4_1388775.b3dm"}}}