Draft Constrain/zh-cn

描述
在底图工作台工具中，您可以通过指针单击3D视图来拾取图形中的点、距离、半径与角度.

Constraining is available with most Draft and Arch commands.



水平约束与垂直约束
按住键，即可在上一个输入点的水平（X）方向或垂直（Y）方向上绘制当前输入点. 至于约束的是水平方向还是垂直方向，则取决于按下 时鼠标指针的位置；如果按键时指针位于上一个点的东西两侧，则约束的是水平方向；如果按键时指针位于上一个点的南北两侧，则约束的是垂直方向. 如果要改变约束方向，只需松开键,并将指针移到另一个新位置，再重新按下键即可.

Usage X, Y and Z constraints

 * 1) Choose a Draft or Arch command to create your geometry.
 * 2) Pick a first point. A previous point is required.
 * 3) Press,  or  to specify the direction.
 * 4) The cursor is now constrained.
 * 5) Pick the next point.
 * 6) If the command is still active optionally do one of the following:
 * 7) * Press the same key to disable the constraint.
 * 8) * Press one of the two other keys to constrain in a different direction.
 * X, Y and Z constraints are automatically disabled when the command is finished.

Preferences
See also: Preferences Editor and Draft Preferences.


 * The default key,, can be changed:.
 * The, and  shortcuts can be changed:.