选择

This page discusses specific selecting tools for surface objects in Edit Mode.The Surface Edit more also uses the general select tools used which are describedin the interface section.

Surface selection in Edit Mode is very similar toNURBS curve selection.The basic tools are the same as with meshes,so you can select a simple control point with an LMB-click,add to current selection with Shift-LMB clicks, B order-select, and so on.

选择菜单

The Select menu (in the 3D Viewport header) is even simpler than for curves…

All these options have the same meaning and behavior as inObject Mode(and the specificities of Box Select in Edit Mode have already been discussedhere).

• All A
• Select all.
• None Alt-A
• Select none.
• Inverse Ctrl-I
• Selects all the geometry that are not selected, and deselect currently selected components.

• Box SelectB
• Interactive box selection.
• Circle SelectC
• Interactive circle selection.

• Select Random
• Select random control points.
• Checker Deselect
• Select every Nth control point.
• Select LinkedCtrl-L
• Select control points that are connected to the current selection.
• Select SimilarShift-G
• Select control points that have similar properties to the current selection.

• Select Control Point Row
• Select a whole row of control points.

• Select More/Less
• Select objects based on their parent child relationships.

Select Random

参考

Select random control points.

• Percent
• Selects the defined percentage of control points.
• Random Seed
• Seed used by the pseudo-random number generator.
• Action
• Controls whether the operator Selects or Deselects control points.

Checker Deselect

参考

This tool applies an alternating selected/deselected checker pattern.This only works if you already have more than one control point selected.

It works by changing the current selection so that only every Nthcontrol points will remain selected, starting from the active one.

• Nth Selection
• Skip every Nth element leaving it selected.
• Skip
• Number of consecutive elements to skip (keep selected) at once.
• Offset
• Offset from the starting point.

选择关联项

参考

Select Linked will add to the selection the mouse cursor's nearest control point,and all the linked ones, i.e. all points belonging to the same surface.

Select Similar

参考

Selects control points that have certain similar properties to the active one.The 调整上一步操作 panel provides several selection options:

• Type
• • Type
  • Selects splines that have the same spline Type i.e. Bézier, NURBS or Poly.
  • Radius
  • Selects control points that have a similar Radius value.
  • Weight
  • Selects all points that have a similar Weight value.
  • Direction
  • Selects control points that have a similar handles direction.
• Compare
• Equal, Greater, Less. (only for Radius, Weight) (ToDo 2.76)
• Threshold
• Precision (ToDo 2.76)

Select Control Point Row

参考

这个选项在网格的 边环状选择 里可用, 因为它选择一个整体的控制点 行 , 基于激活的项(最后选择的). 你第一次按下 Shift-R, V行通过激活的点(含)将被添加到 当前 选择中. 如果你再次使用这个快捷方式，你会在这个点的U和V行间切换, 从选择中移除 一切别的。

Select More/Less

参考

Expand or contract the selection based on current selected control points.

• 扩展选择
• 对于每个选定的控制点, 选择和它相关联的 全部 (即二三或四).。
• 缩减选择
• 对于每个选定的控制点, 如果和它相关联的 全部 点都被选中了, 那也选中它。对于所有其他被选的控制点，取消选择他们。

这意味着两点:

• 第一，当一个曲面上 全部 控制点都被选择了, 那么什么都不会发生的(对于 缩减，所有相连的点总是被选择的，当然，扩展 不添加任何点)。相反地，没有控制点被选时发生一样的事情。
• 其次，这些工具不会“跳出”曲面，（它们不会跳到同一个物体的另一个面上）。