Draft WireToBSpline: Difference between revisions

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<languages/>
<languages/>
<translate>
<translate>
<!--T:17-->
{{Docnav
|[[Draft_SubelementHighlight|Subelement highlight]]
|[[Draft_AddPoint|Add point]]
|[[Draft_Module|Draft]]
|IconL=Draft_SubelementHighlight.svg
|IconR=Draft_AddPoint.svg
|IconC=Workbench_Draft.svg
}}

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{{GuiCommand
{{GuiCommand
|Name=Draft WireToBSpline
|Name=Draft WireToBSpline
|MenuLocation=Drafting → Wire to BSpline
|MenuLocation=Drafting → Wire to BSpline
|Workbenches=[[Draft Module|Draft]], [[Arch Module|Arch]]
|Workbenches=[[Draft_Module|Draft]], [[Arch_Module|Arch]]
|SeeAlso=[[Draft Wire]], [[Draft BSpline]]
|SeeAlso=[[Draft_Wire|Draft Wire]], [[Draft_BSpline|Draft BSpline]]
}}
}}


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<!--T:3-->
This tool converts [[Draft Wire]]s to [[Draft BSpline]]s, and vice-versa.
The {{Button|[[Image:Draft WireToBSpline.svg|16px]] [[Draft_WireToBSpline|Draft WireToBSpline]]}} tool converts {{Button|[[Image:Draft_Wire.svg|16px]] [[Draft_Wire|Draft Wires]]}} to {{Button|[[Image:Draft_BSpline.svg|16px]] [[Draft_BSpline|Draft BSplines]]}}, and vice-versa.


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[[Image:Draft Wire2BSpline example.jpg|400px]]
[[Image:Draft Wire2BSpline example.jpg|400px]]
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{{Caption|Convert a wire to a B-Spline, and a closed B-Spline to a closed wire}}


==How to use== <!--T:4-->
==Usage== <!--T:4-->


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<!--T:5-->
# 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.


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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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{{Emphasis|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 {{PropertyData|Make Face}} to {{FALSE}} to see the new shape, or set {{PropertyData|Closed}} to {{FALSE}} to create an open shape.
{{Emphasis|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 {{PropertyData|Make Face}} to {{FALSE}} to see the new shape, or set {{PropertyData|Closed}} to {{FALSE}} to create an open shape.


==Options== <!--T:6-->
==Options== <!--T:6-->
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==Scripting== <!--T:8-->
==Scripting== <!--T:8-->
{{Emphasis|See also:}} [[Draft API]] and [[FreeCAD Scripting Basics]].
{{Emphasis|See also:}} [[Draft API|Draft API]] and [[FreeCAD Scripting Basics|FreeCAD Scripting Basics]].


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<!--T:9-->
There is no programming interface available for the WireToBSpline tool; however, creating a new object from the points of another is simple.
There is no programming interface available for the WireToBSpline tool; however, creating a new object from the points of another is simple.


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The {{incode|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 in the list is defined by its {{incode|FreeCAD.Vector}}, with units in millimeters.
The {{incode|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 {{incode|FreeCAD.Vector}}, with units in millimeters.


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<!--T:10-->
Example:
Example:

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Wire = Draft.makeWire(points2)
Wire = Draft.makeWire(points2)
}}
}}
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{{Draft Tools navi}}

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{{Userdocnavi}}
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{{Docnav
|[[Draft_SubelementHighlight|Subelement highlight]]
|[[Draft_AddPoint|Add point]]
|[[Draft_Module|Draft]]
|IconL=Draft_SubelementHighlight.svg
|IconR=Draft_AddPoint.svg
|IconC=Workbench_Draft.svg
}}

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Revision as of 16:07, 29 November 2020

Other languages:

Draft WireToBSpline

Menu location
Drafting → Wire to BSpline
Workbenches
Draft, Arch
Default shortcut
None
Introduced in version
-
See also
Draft Wire, Draft BSpline

Description

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

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

Usage

  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.

Scripting

See also: Draft API and FreeCAD Scripting Basics.

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)
Draft
User documentation
Retrieved from "http://wiki.freecad.org/index.php?title=Draft_WireToBSpline&oldid=797583"