Each command will create an App::AutoTransaction to auto create and
commit a transaction for proper undo/redo. But if the command starts
editing, the current transaction may be required to out live the current
command.
Note that the command can only detect editing if the code calls
Gui::Document::setEdit(). There are objects that starts editing by
calling its own ViewProvider::setEdit(), e.g. various TechDraw
ViewProviders. In this case, to avoid auto committing, one can call
App::Application::setActiveTransaction() with the second argument set to
true, or call App::AutoTransaction::setEnable(false).
Because the exception can propagate across C++ and Python boundary
multiple times, prepending extra information may cause duplication,
something like,
"FreeCAD exception thrown(FreeCAD exception thrown(..."
* Add Draft_LinkArray and Draft_PathLinkArray that uses link for both
data and visualization, which supports linking external objects
* Add link group support for draft snap
* Fix ArchWindows expression ambiguity
* Relaxed valid base shape requirement, as long as it can return a
shape using part.getShape()
* Improve ViewProviderPath performance by sharing the same selection
observer
* Relocate libarea binary installation
* Support link and group objects
* Support view sync by implementing view provider API getMDIView()
* Use handleChangedPropertyType() for object migration instead of
reimplementing Restore() because of a lots of changes in
PropertyContainer::Restore().
* Various other small fixes.
* Added Part::Feature::getTopoShape/getShape() function that can obtain
shape from any object with proper implementation of getSubObject(). It
can even construct compound from group object with proper implementation
of getSubObjects().
* Modified ViewProviderExt to work on any object, because it now obtain
the shape using Part::Feature::getShape()
* Modified various Part features to obtain base/tool shapes using
Part::getShape(), which allows them to be any type of object,
including Link and groups.
* Modified various Part command to relax type requirement on selected
objects.
* Add support of link and group to dimension, and add dimension refresh
command
* Support link and group in simple command command, and add a few more
copy command variations.
* Add special handling of 'Shape' attribute in PropertyContainerPy and
use Part::Feature::getShape() to return shape for any object without
Shape property. This allows many python feature work with any object
without modification.
* GeometrySurface/CurvePy, add convenience attribute 'Rotation'
* TopoShapePy:
* Extended support of sub shape attribute, e.g. Compound1, Solid2,
SubShape3 ('SubShape' is used to access child shape of a compound)
* makeWires(), new API to sort and return wires given a list of edges.
* transformed/translated/rotated/scaled(), return a new shape with
some transformation.
* findPlane(), find the plane of a planar shape
* isCoplanar(), check if two shape are coplanar
