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fixes#6174
Problem
=======
The popularity contest heuristic was designed to assume that removing one solver constraint from a redundant group would potentially satisfy it.
This means that for sketcher constraints comprising several solver constraints, the sketcher constraint would never be notified as redundant, but
always partially redundant (where the case may be that it is redundant or that it is partially redundant). This happens because after removing one
solver constraint, it may happen:
(a) that no other solver constraint corresponding to the sketcher constraint remains in the redundant group (so it is indeed partially redundant)
(b) that at least one other solver constraint corresponding to the sketcher constraint remains in the redundant group (so if all solver constraints
remain in the redundant group, the sketcher constraint is actually redundant). This happens because solver constraints of a single sketcher constraint
are orthogonal and consequently, a conflict (or redundancy) emanating from removing one of them cannot actually satisfy the group, as it has no effect
on the other.
Solution
========
When popularity constraint decides on one solver constraint, remove any other solver constraint of the same tag (i.e. same sketcher constraint) that is
present in the conflict group (case b). This does not affect case a, because the solver constraint that is not redundant is not present in the conflict
(redundancy) group.
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Forum:
https://forum.freecad.org/viewtopic.php?p=677304#p677304
A common operation is to toggle a group of geometry to/from construction. This happens often
in connection with carbon copy operations.
When this happens, geometry is often selected using box selection.
If there are geometry points (which are generally construction), and selection box is used, this
results in construction points being toggled to normal defining mode. This situation is undesirable
in 99% of the cases. It requires to reselect only the points and toggle them back.
When construction points need be made defining geometry (for example to use them as attachments), the
general workflow is to select only those points and toggle them.
In order to improve the efficiency, it has been decided to provide a special behaviour for construction
toggling:
1. Vertices will only be toggled to/from construction IF ONLY vertices are selected.
2. If there is a mixture of edges and vertices, vertices will be ignored during the toggling operation.
...the extra points created on rounded rectangles, it started to become a real pain when box selecting large amounts of geometry and having to keep changing the two points back to construction. New and existing users are completely unaffected.
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Fixes an issue reported directly by Chrisb.
On overlapping points, such as due to coincidence, selection and
preselection (e.g. from the ElementsWidget) is not shown for those
points which are rendered first.
Solution: To raise the points to the highlight height.
================================================
I promised Uwe I would look into improving the information of the solver messages, including the abbreviation DoF.
I wanted to keep the effort by Paddle to reduce the width of the taskbar.
This commit introduces new explanatory tooltips for the hyperlinks, a different tooltip per type of information.
UrlLabel sets the tooltips automatically to the url text on change. This commit modifies the tooltip just after the change,
so that the meaningful tooltip is shown.
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The scaling factor used was the one of the ViewProviderSketch, however ZoomTranslation uses its own scaling factor.
fixes#6283
See https://github.com/FreeCAD/FreeCAD/pull/8530#issuecomment-1474824366.
When there are already existing points and coincidence auto-constraints are
added in the process of making a B-spline (either by control points or
interpolation), unintended behaviour can happen.
Additionally, when creating B-spline by interpolation, if consecutive points are
coincident (or very close to each other), the OCCT algorithm fails. This is also
prevented in this commit.
This commit is part of a project funded by the Open Toolchain Foundation under
the title "Open Toolchain Foundation - Curve drawing tool in Sketcher
Workbench".
This commit is part of a project funded by the Open Toolchain Foundation under the title "Open Toolchain Foundation - Curve drawing tool in Sketcher Workbench"
Commented out the periodic version for now since they don't work completely well.
This commit is part of a project funded by the Open Toolchain Foundation under the title "Open Toolchain Foundation - Curve drawing tool in Sketcher Workbench"
This commit is part of a project funded by the Open Toolchain Foundation under the title "Open Toolchain Foundation - Curve drawing tool in Sketcher Workbench"
[Sketcher] Add better icons for `CreateBSplineByInterpolation`
Courtesy @paddlestroke.
As a side-effect also prevents a segfault possible by providing just 3 points.
[Sketcher] Clarify that mults might not be followed
Some examples when this may be ignored include:
1. A number higher than 3 is given (because cubic B-splines are created)
2. If the knots just before and just after have multiplicities >=3, the piece
between these two is fully continuous, and this (middles) point will only be
constrained with point-on-object.
This commit is part of a project funded by the Open Toolchain Foundation under the title "Open Toolchain Foundation - Curve drawing tool in Sketcher Workbench"
This commit is part of a project funded by the Open Toolchain Foundation under the title "Open Toolchain Foundation - Curve drawing tool in Sketcher Workbench"
This commit is part of a project funded by the Open Toolchain Foundation under the title "Open Toolchain Foundation - Curve drawing tool in Sketcher Workbench"
Some parts of `DrawSketchHandlerBSplineByInterpolation` were taken from
`DrawSketchHandlerBSpline` but not modified to reflect the differences.
This commit is part of a project funded by the Open Toolchain Foundation under the title "Open Toolchain Foundation - Curve drawing tool in Sketcher Workbench"
Specifically, when drawing by interpolation, only cubic splines are currently
supported.
Some related "TODO" comments are also removed or modified.
This commit is part of a project funded by the Open Toolchain Foundation under the title "Open Toolchain Foundation - Curve drawing tool in Sketcher Workbench"
Only creates 1-degree splines by describing knots.
This commit is part of a project funded by the Open Toolchain Foundation under the title "Open Toolchain Foundation - Curve drawing tool in Sketcher Workbench"
