Offset
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Curve Offset Curve |
Offset 指令以特定距离偏移复制一条曲线。
步骤
Select a curve or an edge.
Or, Ctrl (CMD) + click connected curve/edge segments before running the command.
Move the mouse cursor to decide the offset direction, and click.
- 为达到良好的效果，曲线偏移距离应适当小一些，并采用光滑曲线，否则偏移曲线可能会有自交的情形。
指令行选项
距离
设置偏移距离。
松弛
Yes - Offsets a curve by moving its edit points.
- Polycurve segments offset individually. Segments will break apart at corners in the result.
- The Corner and Tolerance options are not used and are not shown.
- Curves with fewer edit points may distort more in the result.
The output curve has the same parameter structure as the input curve.
No - Offsets the curve shape within the Tolerance setting.
- A small tolerance creates an output curve with more control points.
Corner
Specifies how corners are handled when they are offset to the "convex" side as pointed out in the image.
Original curve (blue). Offset curve (red).
Sharp
Extend the adjacent offset segments to form a sharp corner.
Round
Fill the gap between adjacent offset segments with a tangent arc segment.
Smooth
Fill the gap between adjacent offset segments with a degree 3 tangent segment.
Chamfer
Fill the gap between adjacent offset segments with a straight segment.
None
Leave the gap open between adjacent offset segments.
修剪
指定偏移后的相交曲线在拐点处是否进行修剪。否选项将创建自相交曲线。
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是 | 否 |
通过点
通过选取的点而不是距离值来偏移。
- The interactive preview is less accurate than the final curve for speeding up display.
公差
两侧
将输入的曲线向两侧偏移。
与工作平面平行
通过此选项，在当前的工作平面上偏移曲线，而不使用原始曲线所在的平面偏移曲线。
加盖
将原来的曲线与偏移曲线的两端封闭。
无
不封闭曲线的两端，偏移曲线会建立在目前的图层。
平头
以直线将输入的曲线与偏移的曲线的两端组合，得到的多重曲线会建立在输入的曲线的图层上。
圆头
以正切的圆弧将输入的曲线与偏移的曲线的两端组合，得到的多重曲线会建立在输入的曲线的图层上。
OutputLayer
Current
Place the results on the current layer.
Input
Place the results on the same layer as the input objects.
隐藏的指令行选项
SubCrv
输入 subcrv 选取曲线上的一部分作为指令的输入。
请参考
OffsetMesh
Copies a mesh by moving the vertices a specified distance with different direction modes.
OffsetCrvOnSrf
Copy a curve on a surface parallel to the original.
OffsetNormal
Copy a curve on a surface parallel to the original in the surface normal direction.
OffsetMultiple
Copy curves or surface edges parallel to the original.