{"asset":{"generatetool":"mars3d@mars3d.cn/osgb2tiles3","gltfUpAxis":"Z","version":"1.0"},"root":{"boundingVolume":{"box":[-143.747005462646,197.441482543945,432.80094909668,24.2496681213379,0,0,0,27.6554565429688,0,0,0,12.4718780517578]},"content":{"uri":"Tile_+000_+008_L17_00.b3dm"},"geometricError":0,"pixel":77,"radius":38.630558013916}}