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== 描述 ==
== 描述 ==


在[[Draft_Module/zh-cn|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。
在[[Draft_Module/zh-cn|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。


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捕捉功能可用于[[Draft Module|图工作台]]与[[Arch Module|建筑工作台(Arch Workbench)]]中的大多工具,利用捕捉工具栏中的{{Button|[[Image:Snap_Lock.svg|16px]] [[Draft ToggleSnap|Draft ToggleSnap]]}}按钮即可对此功能进行全局开启或关闭。而通过{{MenuCommand|View → Toolbars → Draft Snap}}菜单便可以激活捕捉工具栏。通过点选捕捉工具栏中的各按钮,即可开启或关闭对应的捕捉方法。
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捕捉功能可用于[[Draft Module|图工作台]]与[[Arch Module|建筑工作台(Arch Workbench)]]中的大多工具,利用捕捉工具栏中的{{Button|[[Image:Snap_Lock.svg|16px]] [[Draft ToggleSnap|Draft ToggleSnap]]}}按钮即可对此功能进行全局开启或关闭。而通过{{MenuCommand|View → Toolbars → Draft Snap}}菜单便可以激活捕捉工具栏。通过点选捕捉工具栏中的各按钮,即可开启或关闭对应的捕捉方法。
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Revision as of 14:35, 19 October 2020

描述

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。

选择更加精确点的另一种方式是借助捕捉(snapping)功能。所谓捕捉,意即将您设置的下一个点“黏”在某个已存在的点或另一对象的某部分上。

捕捉功能可用于底图工作台建筑工作台(Arch Workbench)中的大多工具,利用捕捉工具栏中的File:Snap Lock.svg Draft ToggleSnap按钮即可对此功能进行全局开启或关闭。而通过View → Toolbars → Draft Snap菜单便可以激活捕捉工具栏。通过点选捕捉工具栏中的各按钮,即可开启或关闭对应的捕捉方法。

同时采用多种捕捉方法,可能会便于您将对象绘制在预期位置上。但如果您的鼠标指针频繁被导向在一个错误的点上,那也许就是采用多种捕捉方法所带来的副作用,此时,请尝试仅采用一种捕捉方法。

利用捕捉功能,令所绘线段垂直于另一线段

Draft Snap toolbar

Advanced snapping

  • Additional snap locations can be obtained by combining two snapping methods, such as Draft Ortho and Draft Extension, that will give you a snap point at the intersection of their imaginary lines.
  • Other snap locations can be obtained by using Draft Constrains, that is, by holding Shift or pressing X, Y or Z while drawing.
  • Press Q while drawing to insert a "hold point" at the current location of the cursor. You will then be able to snap orthogonally to these hold points, and at the intersections of their orthogonal axes. If Draft Midpoint snapping is enabled, you will also be able to snap at the mid distance between any two hold points. introduced in version 0.17

Options

  • The maximum distance at which a point is considered a snapping point is specified in the Draft Preferences, and can also be changed on-the-fly by pressing [ (increase) or ] (decrease) keys.
  • Pressing A while drawing locks the current angle of the line segment being drawn. (Editor: maybe obsolete?)