Draft WireToBSpline/sv: Difference between revisions

From FreeCAD Documentation
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(Updating to match new version of source page)
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{{Docnav
{{Docnav|[[Draft_SubelementHighlight|Subelement highlight]]|[[Draft_AddPoint|Add point]]|[[Draft_Module|Draft]]|IconL=Draft_SubelementHighlight.svg|IconC=Workbench_Draft.svg|IconR=Draft_AddPoint.svg}}
|[[Draft_SubelementHighlight|Subelement highlight]]
|[[Draft_AddPoint|Add point]]|[[Draft_Module|Draft]]
|IconL=Draft_SubelementHighlight.svg
|IconC=Workbench_Draft.svg
|IconR=Draft_AddPoint.svg
}}


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==Beskrivning==
==Beskrivning==


This tool converts [[Draft Wire]]s to [[Draft BSpline]]s, and vice-versa.
This tool converts [[Draft Wire|Draft Wires]] to [[Draft BSpline|Draft BSplines]], and vice-versa.


[[Image:Draft Wire2BSpline example.jpg|400px]]
[[Image:Draft Wire2BSpline example.jpg|400px]]
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==Bruk==
==Bruk==


# Select a [[Draft Wire]] or a [[Draft BSpline]]. The tool is disabled if no object is selected.
# Select a [[Draft Wire|Draft Wire]] or a [[Draft BSpline|Draft BSpline]]. The tool is disabled if no object is selected.
# Press the {{Button|[[Image:Draft WireToBSpline.svg|16px]] [[Draft WireToBSpline]]}} button.
# Press the {{Button|[[Image:Draft WireToBSpline.svg|16px]] [[Draft WireToBSpline|Draft WireToBSpline]]}} button.


A new object will be created; the original object will not be modified.
A new object will be created; the original object will not be modified.
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{{Docnav
{{Docnav|[[Draft_SubelementHighlight|Subelement highlight]]|[[Draft_AddPoint|Add point]]|[[Draft_Module|Draft]]|IconL=Draft_SubelementHighlight.svg|IconC=Workbench_Draft.svg|IconR=Draft_AddPoint.svg}}
|[[Draft_SubelementHighlight|Subelement highlight]]
|[[Draft_AddPoint|Add point]]
|[[Draft_Module|Draft]]
|IconL=Draft_SubelementHighlight.svg
|IconC=Workbench_Draft.svg
|IconR=Draft_AddPoint.svg
}}


{{Draft Tools navi}}
{{Draft Tools navi}}

Revision as of 09:38, 29 November 2019

Draft WireToBSpline

Menyplacering
Drafting -> Wire to BSpline
Arbetsbänkar
Draft, Arch
Standard genväg
Ingen
Introducerad i version
-
Se även
Ingen

Beskrivning

This tool converts Draft Wires to Draft BSplines, and vice-versa.

Convertir a wire to a B-Spline, and a closed B-Spline to a closed wire

Bruk

  1. Select a Draft Wire or a Draft BSpline. The tool is disabled if no object is selected.
  2. Press the Draft WireToBSpline button.

A new object will be created; the original object will not be modified.

Note: if a closed wire with sharp edges is used to create a spline, the new object may have self intersecting curve segments, and may not be visible in the 3D view. If this is the case, manually set DataMake Face to false to see the new shape, or set DataClosed to false to create an open shape.

Options

There are no options for this tool. Either it works with the selected object or not.

Skript

There is no programming interface available for the WireToBSpline tool; however, creating a new object from the points of another is simple.

The Points attribute of an object is a list with the points that comprise that object; this list can be passed to functions that build geometry. Each point is defined by its FreeCAD.Vector, with units in millimeters.

Example:

import FreeCAD, Draft

# Make a spline from the points of a wire
p1 = FreeCAD.Vector(1000, 1000, 0)
p2 = FreeCAD.Vector(2000, 1000, 0)
p3 = FreeCAD.Vector(2500, -1000, 0)
p4 = FreeCAD.Vector(3500, -500, 0)

base_wire = Draft.makeWire([p1, p2, p3, p4])

points1 = base_wire.Points
spline = Draft.makeBSpline(points1)

# Make a wire from the points of a spline
base_spline = Draft.makeBSpline([-p1, -1.3*p2, -1.2*p3, -2.1*p4])

points2 = base_spline.Points
Wire = Draft.makeWire(points2)