Draft BezCurve |
Menu location |
---|
Drafting → Bézier tools → Bézier curve 2D Drafting → Bézier curve |
Workbenches |
Draft, BIM |
Default shortcut |
B Z |
Introduced in version |
0.14 |
See also |
Draft CubicBezCurve, Draft BSpline |
The Draft BezCurve command creates a Bézier curve from several points.
The command creates a single Bézier curve with a DadosDegree that is number_of_points - 1
. It can be transformed into a piecewise Bézier curve by reducing this property.
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
See also: Draft Tray, Draft Snap and Draft Constrain.
The single character keyboard shortcuts available in the task panel can be changed. See Draft Preferences. The shortcuts mentioned here are the default shortcuts (for version 1.0).
true
and will have a filled face, provided it is closed and does not self-intersect. Note that a self-intersecting curve with a face will not display properly, for such a curve DadosMake Face must be set to false
.
See also: Property editor.
A Draft BezCurve object is derived from a Part Part2DObject and inherits all its properties. It also has the following additional properties:
Draft
Area
): (read-only) specifies the area of the face of the curve. The value will be 0.0
if DadosMake Face if false
or the face cannot be created.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.IntegerList
): (read-only) specifies the continuity of the curve.Integer
): specifies the degree of the curve.Length
): (read-only) specifies the total length of the curve.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 DadosClosed is true
and if the curve does not self-intersect.VectorList
): specifies the control points of the curve in its local coordinate system.
Draft
Length
): specifies the size of the symbol displayed at the end of the curve.Enumeration
): specifies the type of symbol displayed at the end of the curve, which can be Dot
, Circle
, Arrow
, Tick
or Tick-2
.Bool
): specifies whether to show a symbol at the end of the curve, so it can be used as an annotation line.Enumeration
): specifies the Draft Pattern with which to fill the face of the closed curve. This property only works if DadosMake Face is true
and if VistaDisplay Mode is Flat Lines
.Float
): specifies the size of the Draft Pattern.See also: Autogenerated API documentation and FreeCAD Scripting Basics.
To create a Draft Line use the make_bezcurve
method (introduced in version 0.19) of the Draft module. This method replaces the deprecated makeBezCurve
method.
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)
bezcurve
object with the given list of points, pointslist
.
FreeCAD.Vector
, with units in millimeters.Part.Wire
, from which points are extracted.closed
is True
, or if the first and last points are identical, the curve is closed.placement
is None
the curve is created at the origin.face
is True
, and the curve is closed, the curve will make a face, that is, it will appear filled.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()