Where can I find this command?
The Trim command cuts and deletes selected portions of an object at the intersection with another object.
指令行選項
ExtendLines=Yes/No
Determines whether or not when line objects are used as cutting objects, imaginary extensions of the line are used. This makes it unnecessary to manually extend lines that do not intersect the objects to trim.
UseApparentIntersections=Yes/No
Determines whether or not curves are trimmed in relation to the view. They do not need to intersect in 3-D space. They only need to appear to intersect in the active viewport.
這個選項對曲面沒有作用。
附註
| ● | If it is difficult to select the parts to trim off, use the Split command and then delete the unwanted parts. |
| ● | Use the Untrim command to remove a trimming boundary from a surface. |
| ● | 在正對工作平面的平行視圖 (例如：預設的 Top、Front、Right 視圖) 以曲線修剪曲面時，曲線會往視圖的方向投影至曲面上將曲面修剪。 |
| ● | 在非正對工作平面的平行或透視視圖 (例如：預設的 Perspective 視圖) 中以平面曲線修剪曲面時，曲線會往與它的曲線平面垂直的方向投影到曲面上將曲面修剪。 |
| ● | 在非正對工作平面的平行或透視視圖中以 3D 曲線修剪曲面，曲線會被拉回到曲面上的最近點將曲面修剪。 |
修剪過的曲面
修剪過的曲面由兩個部分組成：定義幾何物件形狀的原始曲面及定義曲面修剪邊界的曲線，曲面被修剪掉的部分可以是修剪邊界的內側 (洞) 或外側。
修剪邊界曲線會埋入到原始曲面上，原始曲面有可能遠比修剪邊界來得大，因為 Rhino 並不會畫出曲面被修剪掉的部分，所以您無法看到完整的原始曲面。
原始曲面定義幾何物件的真實造型，修剪邊界曲線只是用來定義曲面的哪一部分應該被視為修剪掉的部分，和曲面的實際形狀無關。
如果您以一條跨越曲面的曲線修剪曲面，然後開啟該曲面的控制點，您會發現曲面控制點的結構完全不受曲面修剪的影響。
You can remove the trim curves and get back to the underlying surface using the Untrim commands to remove holes or outside boundaries.
When you have a trimmed surface whose underlying surface is much larger than the outside trimming boundary, you can use the ShrinkTrimmedSrf command to shrink the surface back so that it is only large enough to hold the trimming boundaries and doesn't have a large extra unused area.
The Untrim command removes trim curves and surfaces joined at trim curves from a surface.
步驟
| 4 | 選取曲面的修剪邊緣。 |
指令行選項
是
Determines whether or not the original trimming objects and joined geometry are separated and retained or deleted.
KeepTrimObjects=Yes (left); KeepTrimObjects=No (right).
AllSimilar
點選曲面邊界上的修剪邊緣時將整個邊界取消修剪，點選曲面上的洞時將所有的洞取消修剪。
原來的曲面 (左)、全部=否 (中)、全部=是 (右)。
The RemoveEdge command retrims the selected trimmed surface edge with a line, extensions of the adjacent edges, or a curve.
步驟
| 4 | 選取要刪除的曲面邊緣。 |
指令行選項
KeepTrimObjects=Yes/No
Determines whether or not the original trimming objects are retained.
模式
以直線取代
以直線重新修剪選取的修剪邊緣。
延伸兩側邊緣
以兩側邊緣的延伸線重新修剪選取的邊緣。
兩側邊緣的延伸線的交點必需在原始曲面的範圍內才能完成重新修剪。
選取曲線
以曲線重新修剪選取的修剪邊緣。
The UntrimAll command untrims all trimming curves on an object, both edges and holes in one operation.
The UntrimBorder command untrims the exterior border leaving holes trimmed.
The UntrimHoles command untrims interior holes leaving exterior borders trimmed.
請參考
工具列
Crease splitting enabled.
