The code would only find a center snap on the face with index=0 of solids.
In V0.19 Part.getShape was introduced (line 399). But not all consequences were not fully implemented.
In the '# we are snapping to an edge' section (line 411) the code could be cleaned up. There is no need to check if the index of the edge is correct for the parent object since we are no longer dealing with a parent object. That portion was effectively dead code.
The '# we are snapping to a face' section (line 429 in the revised code) has been modified accordingly, which fixes the bug.
Forum discussion:
https://forum.freecadweb.org/viewtopic.php?f=23&t=54747
Contents of underlying c++ std::map data is copied to a new PyDict on every read. This is contrary to expected python behaviour which would normally just return the pointer to a python object and increment the reference counter for it. This was leading to massive redundant deletion and copying in all post processors which reference this variable in a nested loop. This PR adds a permanent dict member to the class and keeps track of changes to avoid unnecessary copying.
The XML standard stipulates:
The prefix xml is by definition bound to the namespace name http://www.w3.org/XML/1998/namespace. It MAY, but need not, be declared, and MUST NOT be bound to any other namespace name. Other prefixes MUST NOT be bound to this namespace name, and it MUST NOT be declared as the default namespace.
If the document does not explicitly include this namespace, it is added. This prevents errors due to the use of the namespace in some imported SVG files. In debug builds those errors emit warning messages, and in Windows debug builds those errors cause an abort() to be called.
as reported in https://tracker.freecadweb.org/view.php?id=3818
we treat the blind hole depth not according to the conventions. The size of the drill point due to the angle is normally not taken into account but FC does this in any case.
This PR adds therefore an option, that is by default off, to take the drill point size into account.
Without the option, (the new default) the depth is calculated according to the conventions.
The PR also removes unused widgets and restored the tab order in the .ui file. The thread parameters were never used. In case we made in future the decision to carve into holes real (modeled) threads, we need a special UI for that solution anyway so having the dead code in is not helpful at all.
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If the restore of Document.xml results in invalid Document.xml (because unhandled exceptions occurred), the
document status Document::restoreError is set. The GUI or Mod/Web if a link was clicked, show a pop-up indicating
this situation.
This commit also shows an appropriate pop-up for the partialRestore when opening from the menu, that before only
appeared when opening by clicking a link.
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This specific constraint removes the free parameter of the previous implementation. This solves:
https://tracker.freecadweb.org/view.php?id=4501fixes#4501
However, this implementation of equal size produces zero gradients when coordinates of lines are aligned,
e.g. vertical or horizontal. These zero gradients, which are mathematically right ruin the diagnosis, which
regards corresponding elements as fully constraint (because they are locked from a solver point of view), when
they are simply locked, but are movable and constrainable. For this, when the rightful gradient is small enough
(<1e-10) it is substituted by a surrogate gradient of 1e-10, which solves the problem with the diagnose, which
treats as zero only values under 1e-13 (pivot threshold used in QR decomposition).
This special behaviour fixes the wrong detection here:
https://forum.freecadweb.org/viewtopic.php?f=8&t=53466&start=40#p464168
It also fixes this one:
https://forum.freecadweb.org/viewtopic.php?p=468585#p468587
