The idioms described in the previous section are all examples of rich visual modeless feedback, which we will discuss in detail in Chapter 25. However, for some applications, lots of grids and poles may be overkill.

• 前面一节描述的习惯用法全部是丰富的非模态视觉反馈的例子，我们将在第25章中做详细讨论。 但是对于某些应用程序，过多的格线和标杆则具有破坏性。