===========================================
In OCCT 7.4 (and apparently <= 7.4 too):
A GeomAdaptor_Curve obtained directly from BRepAdaptor_Curve will not work because it won't respect the
Location/orientation of the underlying curve.
This commit proposes to create a new GeomAdaptor_Curve from an intermediary curve handle to work around
this issue.
An empty block after a conditional can be a sign of an omission and can decrease maintainability of the code.
Such blocks should contain an explanatory comment to aid future maintainers.
If a body is in a Part container and a new primitive is created no preview is shown because the Part container is automatically made invisiible.
The user has to manually make the container visible but this is an error-prone procedure because the Attachment dialog reacts on user-selection and thus
unintended things can happen. So, this is a serious regression of usability.
The regression is caused by commit a06e0b7c2d but the commit log doesn't explain why the change was even needed.
So, this commit leaves the previous changes but re-adds the old check to filter out container objects.
Rename Python variable 'tv' to avoid potential conflict with others
(PS. I can't reproduce error caused by this. But there is no harm doing
it either).
Handle editing attachment through an App::Link.
OCC currently does not reliably enforce linear deflection on curved
surfaces, especially curved lofts over nurbs splines. To avoid surprises
when tight tolerances are needed, replace the static default angular
deflection of 0.5 radians (~28 degrees), with a more sensible angular
deflection derived from the provided linear deflection tolerance.
By adding the default heuristic to TopoShape, we can keep typical
tessellate() and STL export functionality users simple, and also avoid
the need to implement similar heuristics in many places. If more
explicit control over angular deflection is needed for some use cases,
then we could still choose to expose the option to override the derived
default explicitly.
The hope is that OCC's linear deflection enforcement will be more
reliable at some point, at which point this heuristic will no longer be
needed.
Since Py3.3: 'Py_ssize_t PyUnicode_GetSize(PyObject*)' is deprecated [-Wdeprecated-declarations]
Since Py3.9: 'PyObject* PyEval_CallObjectWithKeywords(PyObject*, PyObject*, PyObject*)' is deprecated [-Wdeprecated-declarations]
Since Py3.9: 'void PyEval_InitThreads()' is deprecated [-Wdeprecated-declarations]
Update parameters for all BRepMesh_IncrementalMesh instances to allow
parallel meshing. This matches what is already done for view
tessellations.
Other positional parameters are filled with their defaults in
BRepMesh_IncrementalMesh, so there should be no behavior change outside
of allowing parallelism.
for faulty geometry output, The user can still see all the error output in the task panel but by default they will see nothing in the Report View as Log is not Enabled for new users. See discussion https://forum.freecadweb.org/viewtopic.php?f=15&t=46803#p402533
========================================
1. The Grid has a default maximum of 10000 lines that is controlled via a new property. The grid is not created (is empty)
if a higher number of lines is necessary. This event is show as a Warning in the Report view.
2. The Grid now checks a new property ShowOnlyInEditMode before deciding whether to show the grid or not. This is a new
mode for ViewProvider2D and derived objects. If the property is set to true (and showGrid is true), the grid is only shown
if the object is in edit mode. If the property is set to false, the grid is shown regardless of whether it is in edit mode
or not (provided that showGrid is true).
3. Grid limits are now encapsulated (private). They can be set via a new function updateGridExtent.
