A PlotSettings object is similar to a Layout object, as both contain identical plot information and this is because the Layout class is derived from the PlotSettings class. The main difference is that a Layout object has an associated BlockTableRecord object containing the geometry to plot. A PlotSettings object is not associated with a particular BlockTableRecord object. It is simply a named collection of plot settings available for use with any geometry. PlotSettings objects are known as page setups in the AutoCAD user interface and are accessed from the Page Setup Manager.
PlotSettings 对象与 Layout 对象类似，两者都包含相同的打印信息，这是因为 Layout 类是从 PlotSettings 类派生出来的。主要的不同之处在于 Layout 对象有一个关联的包含需要打印的几何图形的 BlockTableRecord 对象。而 PlotSettings 对象并不关联特定的 BlockTableRecord 对象，它只是一个可供任意几何图形使用的打印设置的简单的命名集合。 在 AutoCAD 用户界面中 PlotSettings 对象被认为是页面设置，而且可以从页面设置管理器中被访问到。
