Sketcher ConstrainPerpendicular: Difference between revisions
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The endpoints are made coincident, and the edges are made perpendicular at that point. |
The endpoints are made coincident, and the edges are made perpendicular at that point. |
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===Between |
===Between endpoint and edge (point-to-edge perpendicularity)=== <!--T:14--> |
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Revision as of 20:39, 29 February 2024
Sketcher ConstrainPerpendicular |
Menu location |
---|
Sketch → Sketcher constraints → Constrain perpendicular |
Workbenches |
Sketcher |
Default shortcut |
N |
Introduced in version |
- |
See also |
Sketcher Constrain angle |
Description
The Sketcher ConstrainPerpendicular command defines two lines to be perpendicular (i.e. orthogonal) to each other, or two curves to be perpendicular at their intersection. Lines are treated infinite, and arcs are treated as full circles/ellipses. The constraint is also capable of connecting two curves, forcing them perpendicular at the joint, similarly to Constrain tangent.
Usage
See also: Drawing aids.
- Do one of the following (optional if the tool will run in continue mode):
- Select two edges. One of the edges must be a straight line. The other can be a line or a curve, but not a B-spline.
- select two endpoints belonging to different edges.
- Select an edge and the endpoint of another edge (in any order).
- Select a point and two edges (idem).
- There are several ways to invoke the tool:
- Press the Constrain perpendicular button.
- Select the Sketch → Sketcher constraints → Constrain perpendicular option from the menu.
- introduced in version 0.22: Right-click in the 3D view and select the Constrain → Constrain perpendicular option from the context menu.
- Use the keyboard shortcut: N.
- If the tool runs in continue mode:
- The cursor changes to a white cross with the tool icon.
- Optionally keep selecting elements:
- Select two edges (see above).
- Select a point and two edges (in that order).
- Select an edge, a point and another edge (idem).
- To finish, right-click or press Esc, or start a another constraints or geometries tool.
Examples
Between two edges (direct perpendicularity)
The two edges are made perpendicular at their (virtual) intersection. If one of the edges is a conic, a point object that has a point onto object constraint with both edges is added.
Between two endpoints (point-to-point perpendicularity)
The endpoints are made coincident, and the edges are made perpendicular at that point.
Between endpoint and edge (point-to-edge perpendicularity)
The endpoint of one edge is constrained to lie on the other edge, and the edges are made perpendicular at that point.
Between two edges at point (perpendicular-via-point)
The two edges are made perpendicular at a given point. The point can be any point, e.g. the center of a circle, the endpoint of an edge, or the origin, it can also be a point object. If required point onto object constraint(s) are added to ensure the point lies on both edges.
Scripting
Perpendicular Constraint can be created from macros and from the python console by using the following:
# direct perpendicularity
Sketch.addConstraint(Sketcher.Constraint('Perpendicular',icurve1,icurve2))
# point-to-point perpendicularity
Sketch.addConstraint(Sketcher.Constraint('Perpendicular',icurve1,pointpos1,icurve2,pointpos2))
# point-to-curve perpendicularity
Sketch.addConstraint(Sketcher.Constraint('Perpendicular',icurve1,pointpos1,icurve2))
# perpendicular-via-point (plain constraint, helpers are not added automatically)
Sketch.addConstraint(Sketcher.Constraint('PerpendicularViaPoint',icurve1,icurve2,geoidpoint,pointpos))
where:
Sketch
is a sketch objecticurve1
,icurve2
are two integers identifying the curves to be made perpendicular. The integers are indexes in the sketch (the value, returned bySketch.addGeometry
).pointpos1
,pointpos2
should be1
for start point and2
for end point.geoidpoint
andpointpos
in PerpendicularViaPoint are the indexes specifying the point of perpendicularity.
The Sketcher scripting page explains the values which can be used for icurve1
, icurve2
, pointpos1
, pointpos2
and geoidpoint
, and contains further examples on how to create constraints from Python scripts.
- 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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