[1 工作界面介绍](1%E5%B7%A5%E4%BD%9C%E7%95%8C%E9%9D%A2%E4%BB%8B%E7%BB%8D.md) [2 文件操作](2%E6%96%87%E4%BB%B6%E6%93%8D%E4%BD%9C.md) [3 图像显示效果](3%E5%9B%BE%E5%83%8F%E6%98%BE%E7%A4%BA%E6%95%88%E6%9E%9C.md) [4 标尺、参考线和网格线的设置](4%E6%A0%87%E5%B0%BA%E3%80%81%E5%8F%82%E8%80%83%E7%BA%BF%E5%92%8C%E7%BD%91%E6%A0%BC%E7%BA%BF%E7%9A%84%E8%AE%BE%E7%BD%AE.md) [5 图像和画布尺寸的调整](5%E5%9B%BE%E5%83%8F%E5%92%8C%E7%94%BB%E5%B8%83%E5%B0%BA%E5%AF%B8%E7%9A%84%E8%B0%83%E6%95%B4.md) [6 设置绘图颜色](6%E8%AE%BE%E7%BD%AE%E7%BB%98%E5%9B%BE%E9%A2%9C%E8%89%B2.md) [7 了解图层的含义](7%E4%BA%86%E8%A7%A3%E5%9B%BE%E5%B1%82%E7%9A%84%E5%90%AB%E4%B9%89.md) [8 恢复操作的应用](8%E6%81%A2%E5%A4%8D%E6%93%8D%E4%BD%9C%E7%9A%84%E5%BA%94%E7%94%A8.md)