Class OCCTDraft

OpenCascade 形状的拔模角：铸造和模制零件为了能从模具中滑出所需的轻微锥度。draftAngle 使实体的选定面绕中性面倾斜，而 makeDraft 和 makeDraftToShape 从线框或形状的边沿拔模方向生成锥形裙面。角度以度为单位。

Index

Constructors

draft

draftAngle makeDraft makeDraftToShape

Constructors

constructor

new OCCTDraft(): OCCTDraft
Returns OCCTDraft

draft

draftAngle

draftAngle(
inputs: DraftAngleDto<TopoDSShapePointer, TopoDSFacePointer>,
): Promise<TopoDSShapePointer>
按拔模角度倾斜形状的选定面，使零件可以沿 direction 从模具中拔出。

各面绕由一点和一个法线给出的中性面转动，中性面保持不动；angle 以度为单位。flag 保持标准拔模侧，false 则向另一侧形成锥度。无法拔模的面会抛出错误。
Parameters
- inputs: DraftAngleDto<TopoDSShapePointer, TopoDSFacePointer>
  形状、要倾斜的面、拔模方向、角度、中性面和侧向标志
Returns Promise<TopoDSShapePointer>
面已拔模的形状
Example
```
const drafted = await bitbybit.occt.draft.draftAngle({
    shape: box,
    faces: sideFaces,
    direction: [0, 1, 0],
    angle: 5,
    neutralPlaneOrigin: [0, 0, 0],
    neutralPlaneDirection: [0, 1, 0],
    flag: true,
});
```
- Defined in bitbybit-docs.d.ts:40481

makeDraft

makeDraft(inputs: MakeDraftDto<TopoDSShapePointer>): Promise<TopoDSShapePointer>
从线框或形状的边沿某方向生长出一圈带锥度的裙边：每条边沿 direction 扫掠，向外或向内倾斜 angle 度，直到裙边长度达到 lengthMax。

internal 使裙边向内而不是向外倾斜。内核无法构建的拔模会抛出错误。
Parameters
- inputs: MakeDraftDto<TopoDSShapePointer>
  线框或形状、方向、角度、最大长度以及是否向内倾斜
Returns Promise<TopoDSShapePointer>
拔模裙面
Example
```
const skirt = await bitbybit.occt.draft.makeDraft({ shape: outlineWire, direction: [0, 1, 0], angle: 5, lengthMax: 10, internal: false });
```
- Defined in bitbybit-docs.d.ts:40499

makeDraftToShape

makeDraftToShape(
inputs: MakeDraftToShapeDto<TopoDSShapePointer>,
): Promise<TopoDSShapePointer>
像 makeDraft 一样从线框或形状的边沿某方向生长出一圈带锥度的裙边，但在它遇到 stopShape 处停止，而不是在固定长度处。

keepOut 保留终止形状在拔模之外的部分；internal 使裙边向内倾斜。内核无法构建的拔模会抛出错误。
Parameters
- inputs: MakeDraftToShapeDto<TopoDSShapePointer>
  线框或形状、方向、角度、作为终止的形状、避让标志以及是否向内倾斜
Returns Promise<TopoDSShapePointer>
拔模裙面
Example
```
const skirt = await bitbybit.occt.draft.makeDraftToShape({ shape: outlineWire, direction: [0, 1, 0], angle: 5, stopShape: ceilingFace, keepOut: false, internal: false });
```
- Defined in bitbybit-docs.d.ts:40516