FreeCAD: master 224b3ec7

Author Committer Branch Timestamp Parent
abdullah wmayer master 2015-09-06 11:38:51 master 003199d6
Changeset Sketcher: Improvement: Horizontal/Vertical Autoconstraint creation with External Geometry

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This fixes a bug related to:
http://www.freecadweb.org/tracker/view.php?id=2093

that during creation of a geometric element if a vertical/horiz autoconstraint is to be enforced, it is not enforced if the endpoints of the geometric element under creation are
coincident with external geometry.

According to the discussion here:
http://forum.freecadweb.org/viewtopic.php?f=10&t=12254&sid=eacf5bdee068cb71cc54dc5a62a6849d&start=20#p99359

this fixes the bug.

It does not fulfil the request on the ticket as it was decided to still allow an explicit addition of a vertical/horizontal constraint, as
it may be needed in some cases and the user expects to be able to add them, even if it will lead to an overconstrained sketch.

How to reproduce?
1. Create a rectange
2. Pad it
3. Create a new sketch on a face
4. link two corners as "external geometry" (but not the ones of a diagonal)
5. Create a line coincident with the first and second corners, so that the line is horizontal or vertical

In master it will force horiz or vert leading to a overconstrained sketch.
With this patch, the horiz/vert will not be enforced in this case.
mod - src/Mod/Sketcher/App/SketchObject.cpp Diff File
mod - src/Mod/Sketcher/App/SketchObject.h Diff File
mod - src/Mod/Sketcher/Gui/DrawSketchHandler.cpp Diff File