Class OCCTDraft

Draft angles for OpenCascade shapes: the slight taper cast and molded parts need so they slide out of the mold. draftAngle tilts chosen faces of a solid about a neutral plane, while makeDraft and makeDraftToShape grow a tapered skirt from a wire or the edges of a shape along a pull direction. Angles are in degrees.

Index

Constructors

constructor

draft

draftAngle draftAngleWithHistory makeDraft makeDraftWithHistory makeDraftToShape makeDraftToShapeWithHistory

Constructors

constructor

new OCCTDraft(): OCCTDraft
Returns OCCTDraft

draft

draftAngle

draftAngle(
inputs: DraftAngleDto<TopoDSShapePointer, TopoDSFacePointer>,
): Promise<TopoDSShapePointer>
Tilts the selected faces of a shape by a draft angle so the part can be pulled out of a mold along direction.

The faces pivot about the neutral plane, given by a point and a normal; angle is in degrees. flag keeps the standard draft side, false tapers the other way. Undraftable faces throw occt.draft.failed.
Parameters
- inputs: DraftAngleDto<TopoDSShapePointer, TopoDSFacePointer>
  The shape, the faces to tilt, the pull direction, the angle, the neutral plane and the side flag
Returns Promise<TopoDSShapePointer>
The shape with drafted faces
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:59013

draftAngleWithHistory

draftAngleWithHistory(
inputs: DraftAngleDto<TopoDSShapePointer, TopoDSFacePointer>,
): Promise<ShapeWithHistory<TopoDSShapePointer>>
Drafts faces as draftAngle does, and reports what each face, edge and vertex of the shape became: a drafted face becomes its tilted successor in faces.
Parameters
- inputs: DraftAngleDto<TopoDSShapePointer, TopoDSFacePointer>
  The shape, the faces to tilt, the pull direction, the angle, the neutral plane and the side flag
Returns Promise<ShapeWithHistory<TopoDSShapePointer>>
The drafted shape and its history
Example
```
const { shape, history } = await bitbybit.occt.draft.draftAngleWithHistory({ shape: box, faces: sideFaces, direction: [0, 1, 0], angle: 5, neutralPlaneOrigin: [0, 0, 0], neutralPlaneDirection: [0, 1, 0], flag: true });
const tilted = history.faces[1];
```
- Defined in bitbybit-docs.d.ts:59028

makeDraft

makeDraft(inputs: MakeDraftDto<TopoDSShapePointer>): Promise<TopoDSShapePointer>
Grows a tapered skirt from a wire, or the edges of a shape: each edge is swept along direction, leaning outward by angle degrees, until the skirt is lengthMax long.

internal leans it inward. A skirt at 90 degrees or an odd multiple lies flat and is refused; a draft the kernel cannot build throws occt.draft.failed.
Parameters
- inputs: MakeDraftDto<TopoDSShapePointer>
  The wire or shape, the direction, the angle, the maximum length and whether to lean inward
Returns Promise<TopoDSShapePointer>
The drafted skirt
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:59045

makeDraftWithHistory

makeDraftWithHistory(
inputs: MakeDraftDto<TopoDSShapePointer>,
): Promise<ShapeWithHistory<TopoDSShapePointer>>
Grows a skirt as makeDraft does, and reports what each edge of the wire or shape swept: facesFromEdges[i] holds the skirt faces edge i grew.
Parameters
- inputs: MakeDraftDto<TopoDSShapePointer>
  The wire or shape, the direction, the angle, the maximum length and whether to lean inward
Returns Promise<ShapeWithHistory<TopoDSShapePointer>>
The drafted skirt and its history
Example
```
const { shape, history } = await bitbybit.occt.draft.makeDraftWithHistory({ shape: outlineWire, direction: [0, 1, 0], angle: 5, lengthMax: 10, internal: false });
```
- Defined in bitbybit-docs.d.ts:59059

makeDraftToShape

makeDraftToShape(
inputs: MakeDraftToShapeDto<TopoDSShapePointer>,
): Promise<TopoDSShapePointer>
Grows a tapered skirt from a wire or the edges of a shape like makeDraft, stopping it where it meets stopShape.

keepOut keeps the part of the stop shape outside the draft and internal leans it inward. A skirt at 90 degrees or an odd multiple lies flat and is refused; a failed draft throws occt.draft.failed.
Parameters
- inputs: MakeDraftToShapeDto<TopoDSShapePointer>
  The wire or shape, the direction, the angle, the shape to stop at, the keep-out flag and whether to lean inward
Returns Promise<TopoDSShapePointer>
The drafted skirt
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:59077

makeDraftToShapeWithHistory

makeDraftToShapeWithHistory(
inputs: MakeDraftToShapeDto<TopoDSShapePointer>,
): Promise<ShapeWithHistory<TopoDSShapePointer>>
Grows a skirt up to a stop shape as makeDraftToShape does, and reports what each edge of the wire or shape swept, as makeDraftWithHistory does.
Parameters
- inputs: MakeDraftToShapeDto<TopoDSShapePointer>
  The wire or shape, the direction, the angle, the shape to stop at, the keep-out flag and whether to lean inward
Returns Promise<ShapeWithHistory<TopoDSShapePointer>>
The drafted skirt and its history
Example
```
const { shape, history } = await bitbybit.occt.draft.makeDraftToShapeWithHistory({ shape: outlineWire, direction: [0, 1, 0], angle: 5, stopShape: ceilingFace, keepOut: false, internal: false });
```
- Defined in bitbybit-docs.d.ts:59091

Class OCCTDraft

Index

Constructors

draft

Constructors

constructor

Returns OCCTDraft

draft

draftAngle

Parameters

Returns Promise<TopoDSShapePointer>

Example

draftAngleWithHistory

Parameters

Returns Promise<ShapeWithHistory<TopoDSShapePointer>>

Example

makeDraft

Parameters

Returns Promise<TopoDSShapePointer>

Example

makeDraftWithHistory

Parameters

Returns Promise<ShapeWithHistory<TopoDSShapePointer>>

Example

makeDraftToShape

Parameters

Returns Promise<TopoDSShapePointer>

Example

makeDraftToShapeWithHistory

Parameters

Returns Promise<ShapeWithHistory<TopoDSShapePointer>>

Example

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