Draft: Curva di Bézier cubica
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| Posizione nel menu |
|---|
| Draft → Strumenti Bezier → Curva di Bézier cubica |
| Ambiente |
| Draft, Arch |
| Avvio veloce |
| Nessuno |
| Introdotto nella versione |
| - |
| Vedere anche |
| Polilinea, B-spline, Curva di Bézier |
Descrizione
Lo strumento Curva di Bézier cubica crea unaCurva di Bézier di terzo grado. Questa è una delle curve di Bezier più usate. Questo strumento consente di creare una grande spline composta da diversi segmenti Bezier di 3° grado, in un modo simile allo strumento Bezier in Inkscape. Una curva di Bezier di qualsiasi grado può essere creata con lo strumento Curva di Bézier.
The Draft BezCurve and the Draft CubicBezCurve tools use control points to define the direction of the curve; on the other hand the Draft BSpline tool specifies the exact points through which the curve will go.
File:Draft CubicBezCurve Example.png
Cubic Bezier curve defined by three control points
How to use
- Press the
Draft CubicBezCurve button. - Click a first point on the 3D view, and hold the mouse pointer.
- Drag the pointer to another point on the 3D view, and release the pointer.
- Move the pointer to another point on the 3D view to adjust the curvature of the spline, and click and hold on the point.
- Move the pointer to another point on the 3D view to adjust the final curvature of the spline, and then release the pointer. This creates a Bezier curve of 3rd degree, and continues drawing from the last point.
- Repeat the process of clicking, holding, dragging, and releasing to add points, and create further 3rd-degree Bezier segments.
- Press Esc or the Close button, to complete the edition.
Options
Properties
Data
View
Scripting
See also: Draft API and FreeCAD Scripting Basics.
Draft
- Drafting: Line, Polyline, Fillet, Arc, Arc by 3 points, Circle, Ellipse, Rectangle, Polygon, B-spline, Cubic Bézier curve, Bézier curve, Point, Facebinder, ShapeString, Hatch
- Annotation: Text, Dimension, Label, Annotation styles, Annotation scale
- Modification: Move, Rotate, Scale, Mirror, Offset, Trimex, Stretch, Clone, Array, Polar array, Circular array, Path array, Path link array, Point array, Point link array, Edit, Subelement highlight, Join, Split, Upgrade, Downgrade, Wire to B-spline, Draft to sketch, Set slope, Flip dimension, Shape 2D view
- Draft Tray: Select plane, Set style, Toggle construction mode, AutoGroup
- Snapping: Snap lock, Snap endpoint, Snap midpoint, Snap center, Snap angle, Snap intersection, Snap perpendicular, Snap extension, Snap parallel, Snap special, Snap near, Snap ortho, Snap grid, Snap working plane, Snap dimensions, Toggle grid
- Miscellaneous: Apply current style, Layer, Manage layers, Add a new named group, Move to group, Select group, Add to construction group, Toggle normal/wireframe display, Create working plane proxy, Heal, Show snap toolbar
- Additional: Constraining, Pattern, Preferences, Import Export Preferences, DXF/DWG, SVG, OCA, DAT
- Context menu:
- Layer container: Merge layer duplicates, Add new layer
- Layer: Activate this layer, Select layer contents
- Text: Open hyperlinks
- Wire: Flatten
- Working plane proxy: Write camera position, Write objects state
User documentation
- Getting started
- Installation: Download, Windows, Linux, Mac, Additional components, Docker, AppImage, Ubuntu Snap
- Basics: About FreeCAD, Interface, Mouse navigation, Selection methods, Object name, Preferences, Workbenches, Document structure, Properties, Help FreeCAD, Donate
- Help: Tutorials, Video tutorials
- Workbenches: Std Base, Arch, Assembly, CAM, Draft, FEM, Inspection, Mesh, OpenSCAD, Part, PartDesign, Points, Reverse Engineering, Robot, Sketcher, Spreadsheet, Start, Surface, TechDraw, Test Framework, Web
- Hubs: User hub, Power users hub, Developer hub