Sketcher ConstrainPointOnObject: Difference between revisions
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{{Docnav |
{{Docnav |
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|[[Sketcher_ConstrainCoincident|Coincident]] |
|[[Sketcher_ConstrainCoincident|Coincident]] |
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|[[Sketcher_ConstrainHorVer|Horizontal/vertical]] |
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|[[Sketcher_ConstrainVertical|Vertical]] |
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|[[Sketcher_Workbench|Sketcher]] |
|[[Sketcher_Workbench|Sketcher]] |
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|IconL=Sketcher_ConstrainCoincident.svg |
|IconL=Sketcher_ConstrainCoincident.svg |
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|IconR= |
|IconR=Sketcher_ConstrainHorVer.svg |
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|IconC=Workbench_Sketcher.svg |
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{{GuiCommand |
{{GuiCommand |
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|Name=Sketcher ConstrainPointOnObject |
|Name=Sketcher ConstrainPointOnObject |
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|MenuLocation=Sketch → Sketcher constraints → Constrain point |
|MenuLocation=Sketch → Sketcher constraints → Constrain point on object |
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|Workbenches=[[Sketcher_Workbench|Sketcher]] |
|Workbenches=[[Sketcher_Workbench|Sketcher]] |
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|Shortcut= |
|Shortcut={{KEY|O}} |
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|SeeAlso=[[Sketcher_ConstrainCoincidentUnified|Sketcher ConstrainCoincidentUnified]], [[Sketcher_ConstrainCoincident|Sketcher ConstrainCoincident]] |
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|SeeAlso=[[Sketcher_ConstrainCoincident|Sketcher Constrain Coincident]] |
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}} |
}} |
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==Description== <!--T: |
==Description== <!--T:18--> |
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Affixes a point onto another object such as a line, arc, or sketch axis. |
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The [[Image:Sketcher_ConstrainPointOnObject.svg|24px]] [[Sketcher_ConstrainPointOnObject|Sketcher ConstrainPointOnObject]] tool fixes points on edges or axes. Lines are treated as infinite, and open curves are virtually extended as well. |
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{{Version|1.0}}: This tool is replaced by the [[Sketcher_ConstrainCoincidentUnified|Sketcher ConstrainCoincidentUnified]] tool if the '''Unify Coincident and PointOnObject''' option is selected in the [[Sketcher_Preferences#General|preferences]]. |
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==Usage== <!--T:3--> |
==Usage== <!--T:3--> |
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See also: [[Sketcher_Workbench#Drawing_aids|Drawing aids]]. |
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===[[Sketcher_Workbench#Continue_modes|Continue mode]]=== <!--T:22--> |
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# Make sure there is no selection. |
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# Select the point you want to affix onto a line/arc/etc. ('''Result:''' Once selected the point will become green). |
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# There are several ways to invoke the tool: |
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# Select the line you want affixed onto the point you have just selected ('''Result:''' Once selected the line becomes green). |
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#* Press the {{Button|[[Image:Sketcher_ConstrainPointOnObject.svg|16px]] [[Sketcher_ConstrainPointOnObject|Constrain point on object]]}} button. |
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# Invoke the '''Constrain point onto object''' tool using several methods: |
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#* |
#* Select the {{MenuCommand|Sketch → Sketcher constraints → [[Image:Sketcher_ConstrainPointOnObject.svg|16px]] Constrain point on object}} option from the menu. |
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#* Use the |
#* Use the keyboard shortcut: {{KEY|O}}. |
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# The cursor changes to a cross with the tool icon. |
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#* Use the {{MenuCommand|Sketch → Sketcher constraints → Constrain point onto object}} entry in the top menu. |
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# Select a single point and a single edge (in any order). |
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# A constraint is added. |
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# Optionally keep creating constraints. |
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# To finish, right-click or press {{KEY|Esc}}, or start another geometry or constraint creation tool. |
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===Run-once mode=== <!--T:23--> |
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# Do one of the following: |
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'''Note:''' The order you select the line and point does not matter. The point will always move to line. In other words, the line remains fixed. |
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#* Select a single point and a single edge (in any order). |
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#* Select several points and a single edge (idem). |
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#* Select a single point and several edges (idem). |
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# Invoke the tool as explained above. |
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# Depending on the selection one or more constraints are added. |
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==Scripting== <!--T: |
==Scripting== <!--T:19--> |
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The constraint can be created from macros and from the |
The constraint can be created from [[Macros|macros]] and from the [[Python|Python]] console by using the following command: |
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* {{incode|Sketch}} is a sketch object. |
* {{incode|Sketch}} is a sketch object. |
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* {{incode|LineMoving}} is the number that designates the line, which contains the point that has to be moved |
* {{incode|LineMoving}} is the number that designates the line, which contains the point that has to be moved on the {{incode|LineFixed}} (the line which is fixed). |
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* {{incode|PointOfLineMoving}} is the number of the vertex of line {{incode|LineMoving}}, that has to be moved |
* {{incode|PointOfLineMoving}} is the number of the vertex of line {{incode|LineMoving}}, that has to be moved on the {{incode|LineFixed}}. |
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* {{incode|LinedFixed}} is the number of the line to be affixed |
* {{incode|LinedFixed}} is the number of the line to be affixed on the point {{incode|PointOfLineMoving}}. |
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{{Docnav |
{{Docnav |
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|[[Sketcher_ConstrainCoincident|Coincident]] |
|[[Sketcher_ConstrainCoincident|Coincident]] |
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|[[Sketcher_ConstrainHorVer|Horizontal/vertical]] |
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|[[Sketcher_ConstrainVertical|Vertical]] |
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|[[Sketcher_Workbench|Sketcher]] |
|[[Sketcher_Workbench|Sketcher]] |
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|IconL=Sketcher_ConstrainCoincident.svg |
|IconL=Sketcher_ConstrainCoincident.svg |
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|IconR= |
|IconR=Sketcher_ConstrainHorVer.svg |
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|IconC=Workbench_Sketcher.svg |
|IconC=Workbench_Sketcher.svg |
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Latest revision as of 14:51, 23 April 2024
Sketcher ConstrainPointOnObject |
Menu location |
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Sketch → Sketcher constraints → Constrain point on object |
Workbenches |
Sketcher |
Default shortcut |
O |
Introduced in version |
- |
See also |
Sketcher ConstrainCoincidentUnified, Sketcher ConstrainCoincident |
Description
The Sketcher ConstrainPointOnObject tool fixes points on edges or axes. Lines are treated as infinite, and open curves are virtually extended as well.
introduced in version 1.0: This tool is replaced by the Sketcher ConstrainCoincidentUnified tool if the Unify Coincident and PointOnObject option is selected in the preferences.
Usage
See also: Drawing aids.
Continue mode
- Make sure there is no selection.
- There are several ways to invoke the tool:
- Press the Constrain point on object button.
- Select the Sketch → Sketcher constraints → Constrain point on object option from the menu.
- Use the keyboard shortcut: O.
- The cursor changes to a cross with the tool icon.
- Select a single point and a single edge (in any order).
- A constraint is added.
- Optionally keep creating constraints.
- To finish, right-click or press Esc, or start another geometry or constraint creation tool.
Run-once mode
- Do one of the following:
- Select a single point and a single edge (in any order).
- Select several points and a single edge (idem).
- Select a single point and several edges (idem).
- Invoke the tool as explained above.
- Depending on the selection one or more constraints are added.
Scripting
The constraint can be created from macros and from the Python console by using the following command:
Sketch.addConstraint(Sketcher.Constraint('PointOnObject',LineMoving,PointOfLineMoving,LineFixed))
Sketch
is a sketch object.LineMoving
is the number that designates the line, which contains the point that has to be moved on theLineFixed
(the line which is fixed).PointOfLineMoving
is the number of the vertex of lineLineMoving
, that has to be moved on theLineFixed
.LinedFixed
is the number of the line to be affixed on the pointPointOfLineMoving
.
The Sketcher scripting page explains how to identify the numbers that designate lines and points.
Sketcher
- General: Create sketch, Edit sketch, Map sketch to face, Reorient sketch, Validate sketch, Merge sketches, Mirror sketch, Leave sketch, View sketch, View section, Toggle grid, Toggle snap, Configure rendering order, Stop operation
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- Sketcher constraints:
- Geometric constraints: Coincident, Point on object, Vertical, Horizontal, Parallel, Perpendicular, Tangent, Equal, Symmetric, Block
- Dimensional constraints: Lock, Horizontal distance, Vertical distance, Distance, Radius or weight, Diameter, Auto radius/diameter, Angle, Refraction (Snell's law)
- Constraint tools: Toggle driving/reference constraint, Activate/deactivate constraint
- Sketcher tools: Select unconstrained DoF, Select associated constraints, Select associated geometry, Select redundant constraints, Select conflicting constraints, Show/hide internal geometry, Select origin, Select horizontal axis, Select vertical axis, Symmetry, Clone, Copy, Move, Rectangular array, Remove axes alignment, Delete all geometry, Delete all constraints
- Sketcher B-spline tools: Show/hide B-spline degree, Show/hide B-spline control polygon, Show/hide B-spline curvature comb, Show/hide B-spline knot multiplicity, Show/hide B-spline control point weight, Convert geometry to B-spline, Increase B-spline degree, Decrease B-spline degree, Increase knot multiplicity, Decrease knot multiplicity, Insert knot, Join curves
- Sketcher virtual space: Switch virtual space
- Additional: Sketcher Dialog, Preferences, Sketcher scripting
User documentation
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