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"
- for e.g. the solver objects it is important that the added equations are visible in the TreeView
- also improve activation of analyses for documents with multiple analyses: one activates one and can then subsequently add an object to it because the activation will also select
- this PR addresses a long-standing annoying issue: You are already in the FEM WB and load a file.
Then you cannot just start but first have to activate the Analysis. But one is in the FEM WB to work with analyses.
- for e.g. the Elmer equations it is important that one can add several equations subsequently and that the added equations are visible in the TreeView
- the spring constraint is currently unused but it can be used for Elmer mechanical analyses
This PR does so and also overhaul the dialog UI.
- use the spring constraint also in an example file
- add fields to specify a formula for the displacement, this is necessary to make transient deformation analyses with Elmer
- add option to set displacement from result of flow equation
- this way also a major overhaul -> simpler dialog logic etc.
- fix whitespace in the SIF writer
- Elmer GUI uses only 20 nonlinear iterations, so we should do the same (500 were also not sensible)
- don't restrict nonlinear-Newton iterations to 100, 500 might be necessary for turbulent flow
- update author
- adds new equation "Deformation" (this name since the stress solver got in FreeCAD the misleading name "elasticity")
- this way change icon of elastic solver to make the difference clear
