Draft BezCurve
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poziția meniului
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Draft → BezCurve
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Ateliere
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Draft, Arch
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scurtătură
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B Z
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Prezentat în versiune
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-
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A se vedea, de asemenea,
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Nici unul
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Descriere
Obiectul este creat ca o singură curbă Bezier de grad (număr_de_ puncte - 1). Aceasta poate fi modificată la o curbă Bezier în parte, de un anumit grad după crearea folosind editor proprietăți. Bezier Curves poate fi editat folosind
Editare proiect.
The Draft BezCurve and the Draft CubicBezCurve commands use control points to define the position and curvature of the spline. The Draft BSpline command, on the other hand, specifies the exact points through which the curve will pass.
Bézier curve defined by multiple points
Cum se folosește
See also: Draft Tray, Draft Snap and Draft Constrain.
- There are several ways to invoke the command:
- Press the
Bézier Curve button.
- Draft: Select the Drafting → Bézier Tools →
Bézier Curve option from the menu.
- BIM: Select the 2D Drafting →
Bézier Curve option from the menu.
- Use the keyboard shortcut: B then Z.
- The Bézier Curve task panel opens. See Options for more information.
- Pick the first point in the 3D View, or type coordinates and press the
Enter Point button.
- Pick additional points in the 3D View, or type coordinates and press the
Enter Point button.
- Press Esc or the Close button to finish the command.
Cum se foloseşte
- Apăsați butonul
Draft BezCurve , sau apăsați W apoi tastele I
- Faceți clic pe un prim punct din vizualizarea 3D sau tastați un coordinate
- Faceți clic pe un punct suplimentar în vizualizarea 3D sau tastați un coordinate
- Apăsați F sau C sau faceți dublu clic pe ultimul punct sau faceți clic pe primul punct pentru a termina sau a închide filamentul/polilinia. Dacă filamentul este închis, acesta va fi, de asemenea, o fațetă, chiar dacă acesta apare ca o rețea wireframe.
The single character keyboard shortcuts available in the task panel can be changed. See Draft Preferences. The shortcuts mentioned here are the default shortcuts.
- Apăsați tasta F sau butonul
Finish pentru a finaliza funcția B spline, lăsând-o deschisă
- Press C or the
Close button or click on the first point to finish the spline, but making it closed by adding a last segment between the last point and the first one.
- Press X, Y or Z after a point to constrain the next point on the given axis.
- To enter coordinates manually, simply enter the numbers, then press ENTER between each X, Y and Z component.
- Press R or click the checkbox to check/uncheck the Relative button. If relative mode is on, the coordinates of the next point are relative to the last one. If not, they are absolute, taken from the (0,0,0) origin point.
- Press T or click the checkbox to check/uncheck the Continue button. If continue mode is on, the BezCurve tool will restart after you finish or close it, allowing you to draw another one without pressing the BezCurve button again.
- Press CTRL while drawing to force snapping your point to the nearest snap location, independently of the distance.
- Press SHIFT while drawing to constrain your next point horizontally or vertically in relation to the last one.
- Press W or press the
Wipe button to remove the existing segments and start the spline from the last point.
- Press CTRL+Z or press the
Undo button to undo the last point.
- Apăsați tasta ESC sau butonul Cancel penru a abandona comanda BezCurve .
Notes
Limitări
- Acest instrument nu este disponibil înainte de versiunea FreeCAD 0.14
- Proprietatea puncte nu apare încă în lista de proprietăți.
- OpenCascade nu suportă Bezier Curve cu grad> 25. Aceasta nu ar trebui să fie o problemă în practică.
Proprietăți
See also: Property View.
A Draft BezCurve object is derived from a Part Part2DObject1.0 and below or a Part Feature object1.1 and above and inherits all its properties. It also has the following additional properties:
Data
Attachment
The object has the same attachment properties as a Part Part2DObject.
Draft
- DateArea (
Area
): (read-only) specifies the area of the face of the curve. The value will be 0.0
if DateMake Face if false
or the face cannot be created.
- DateClosed (
Bool
): specifies if the curve is closed or not. If the curve is initially open this value is false
, setting it to true
will draw a segment to close the curve. If the curve is initially closed this value is true
, setting it to false
will remove the last segment and make the curve open.
- DateContinuity (
IntegerList
): (read-only) specifies the continuity of the curve.
- DateDegree (
Integer
): specifies the degree of the curve.
- DateLength (
Length
): (read-only) specifies the total length of the curve.
- DateMake Face (
Bool
): specifies if the curve makes a face or not. If it is true
a face is created, otherwise only the perimeter is considered part of the object. This property only works if DateClosed is true
and if the curve does not self-intersect.
- DatePoints (
VectorList
): specifies the control points of the curve in its local coordinate system.
View
Draft
- VizualizareArrow Size (
Length
): specifies the size of the symbol displayed at the end of the curve.
- VizualizareArrow Type (
Enumeration
): specifies the type of symbol displayed at the end of the curve, which can be Dot
, Circle
, Arrow
, Tick
or Tick-2
.
- VizualizareEnd Arrow (
Bool
): specifies whether to show a symbol at the end of the curve, so it can be used as an annotation line.
- VizualizarePattern (
Enumeration
): specifies the Draft Pattern with which to fill the face of the closed curve. This property only works if DateMake Face is true
and if VizualizareDisplay Mode is Flat Lines
.
- VizualizarePattern Size (
Float
): specifies the size of the Draft Pattern.
Scripting
Scrip-Programare
Instrumentul BezCurve poate fi folosit în macros și din consola Python utilizând următoarea funcție:
bezcurve = make_bezcurve(pointslist, closed=False, placement=None, face=None, support=None, degree=None)
bezcurve = make_bezcurve(Part.Wire, closed=False, placement=None, face=None, support=None, degree=None)
- Creați un obiect tip curbă Bezier din lista dată a vectorilor. În loc de o listă de puncte, puteți trece și o secțiune parțială.
Example:
import FreeCAD as App
import Draft
doc = App.newDocument()
p1 = App.Vector(0, 0, 0)
p2 = App.Vector(1000, 1000, 0)
p3 = App.Vector(2000, 0, 0)
p4 = App.Vector(1500, -2000, 0)
bezcurve1 = Draft.make_bezcurve([p1, p2, p3, p4], closed=True)
bezcurve2 = Draft.make_bezcurve([p4, 1.3*p2, p1, 4.1*p3], closed=True)
bezcurve3 = Draft.make_bezcurve([1.7*p3, 1.5*p4, 2.1*p2, p1], closed=True)
doc.recompute()
Draft
- Drafting: Line, Polyline, Fillet, Arc, Arc From 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, Highlight Subelements, Join, Split, Upgrade, Downgrade, Convert Wire/B-Spline, Draft to Sketch, Set Slope, Flip Dimension, Shape 2D View
- Draft Tray: Working 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, New Layer, Manage Layers, New Named Group, SelectGroup, Add to Layer, Add to Group, Add to Construction Group, Toggle Wireframe, Working Plane Proxy, Heal, Show Snap Toolbar
- Additional: Constraining, Pattern, Preferences, Import Export Preferences, DXF/DWG, SVG, OCA, DAT
- Context menu:
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, Assembly, BIM, CAM, Draft, FEM, Inspection, Material, Mesh, OpenSCAD, Part, PartDesign, Points, Reverse Engineering, Robot, Sketcher, Spreadsheet, Surface, TechDraw, Test Framework