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The Draft Draft2Sketch command converts Draft objects to Sketcher Sketches and vice versa.
Converting Draft objects to Sketcher Sketches
- Optionally select one or more Draft objects or Sketcher Sketches.
- There are several ways to invoke the command:
- Press the Draft to sketch button.
- Select the Modification → Draft to sketch option from the menu.
- If you have not yet selected an object: select an object in the 3D view.
- A new object is created.
- Non-Draft objects that are totally planar can also be converted.
- The command can only handle objects made up out of straight lines, circular arcs, elliptical arcs, B-Splines and Bézier curves.
- Draft BezCurves will be approximated by Sketcher BSplines.
- The external KicadStepUp Workbench contains a command to convert a Draft BSpline into a series of Sketcher Arcs. For more information see the forum topic BSplines to Shape2DView and Sketcher.
- This other forum topic contains a macro for such a conversion.
See also: Autogenerated API documentation and FreeCAD Scripting Basics.
To convert objects to a sketch use the make_sketch
method ((v0.19) ) of the Draft module. This method replaces the deprecated makeSketch
method.
sketch = make_sketch(objects_list, autoconstraints=False, addTo=None, delete=False, name="Sketch", radiusPrecision=-1, tol=1e-3)
-
objects_list
contains the objects to be converted. It is either a single object or a list of objects.Draft
objects,Part::Feature
objects andPart.Shape
objects are supported. -
If
autoconstraints
isTrue
coincident constraints are added to nodes belonging to the same source object. -
addTo
is the existing sketch object the geometry is added to. If not supplied a new sketch is created. -
If
delete
isTrue
the source objects are deleted. -
name
is the name for the new sketch. -
radiusPrecision
indicates how radius constraints should be handled:
- Use `-1` to disable radius constraints.
- Use `0` to add individual radius constraints.
- Use a positive number to round radii according to this precision, and to add equal constraints between curves with equal radii.
-
tol
is the tolerance used to check if shapes are planar and co-planar. Use-1
for a strict analysis. -
sketch
is returned with the sketch object.
To convert a sketch to Draft objects use the draftify
method of the Draft module.
draftify(objectslist, makeblock=False, delete=True)
-
objectslist
contains the objects to be converted. It is either a single object or a list of objects. -
If
makeblock
isTrue
the converted objects are grouped in aPart::Part2DObject
. -
If
delete
isTrue
the source objects are deleted.
Example:
import FreeCAD as App
import Draft
doc = App.newDocument()
rectangle = Draft.make_rectangle(2000, 1000)
circle = Draft.make_circle(500)
doc.recompute()
sketch_from_draft = Draft.make_sketch([rectangle, circle], autoconstraints=True, delete=False, radiusPrecision=0)
doc.recompute()
draft_from_sketch = Draft.draftify(sketch_from_draft, delete=False)
doc.recompute()
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