======================================================================
- Changing from Driving to reference does not include unnecessary solvings.
- Added some checks to avoid making Driving constraints when calling directly from python and involving only external geometry (would give redundant constraints).
- New python command toggleDriving to just change the status from reference to Driving
- New UI toolbar Command to toggle constraints
- Fix to allow switching from/to construction mode during continuous mode creation.
- Enable/Disable for constraints in constraints widget has changed to operate on multiselection and now effects "toggle" instead of enable/disable.
- Disable the option to directly create a SnellsLaw non-driving constraint (this constraint does not support direct creation, it can be toggled to non-driving after creation though).
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This fixes a bug in the original implementation, that a non-driving constraint value could be
edited by double clicking on it in the 3D view.
It also includes minimal documentation on some functions.
It also includes:
- Color setting for non-driving constraints was not working.
- Settle UI terminology dispute:
* Driving Constraint (normal red constraint)
* Reference Constraint (non-driving constraint)
====================================================================================
It allows to enable and disable a constraint in the constraint list.
When disabled, the constraints current value is shown, but its value is not enforced (it is driven by the other constraints and user interaction).
A disabled constraint can be enabled (as far as it is enforceable, see non-driving constraints to external geometry below).
The sketcher functionality has been extended to support non-driving constraints to external geometry elements. This were previously excluded from
the possibility of creating a constraint on them (as their values depend on other sketches and would be redundant with the unchanged value or conflicting when value is changed).
Now these constraints are created as non-driving, but as they are not enforceable, the UI does not allow you to make them driving.
The constraint filter has been extended to include a Non-Driving constraints category.
Thanks again to Werner for his continuous support, and specially in this case to DeepSOIC, as he pointed towards a much better implementation solution than my original idea.
Fix AngleViaPoint to support new derivative calculation technique.
OpticConstraints: Adding Snell's law. Fix AngleViaPoint to support new derivative calculation technique.
Snell's law constraint added to GCS, but not yet exposed and cannot be
tested.
Since the way CalculateNormal() returns derivatives had changed,
AngleViaPoint constraint needed modifications. Nothing serious.
OpticConstraints: SnellsLaw progress
Addable through python. Fix math. Some quick-and-dirty visual stuff to
get rid of hangs and to see the constraint in action.
OpticConstraints: SnellsLaw: flipping logic fix
OpticConstraints: SnellsLaw progress
Added toolbar button. Allowed editing a datum by doubleclick. New error
message approach during constraint creation.
OpticConstraints: SnellsLaw
OpticConstraints: SnellsLaw: list label improvement
OpticConstraints: SnellsLaw: fix after rebase
OpticConstraints: SnellsLaw: expose helper constraints
Snell's law internally is made of three constraints: point-on-object,
coincident and the Snell's sin/sin. They were all buried under one UI
constraint. Exposing them allows to construct reflection and
birefringence on the point (attempting to do so used to result in
redundant constraints and was often not functional at all).
This commit breaks compatibility with older files.
OpticConstraints: SnellsLaw: small refactor of math
Placing the duplicated code of error and gradient calculation into a
private method.
OpticConstraints: SnellsLaw: fix datum edit unit
OpticConstraints: SnellsLaw: fix datum edit bug
After previous fix, the dimensionless value was not accepted (the
constraint's value did not change, the changes were ignored).
- Ellipse introduction button via (center,majaxis extreme, a point in edge), ellipse is always CCW so that Z axis goes in the positive direction of the sketch
- Backwards compatibility with files of previous versions of ellipse not defining a phi angle
- Art by Jim (all the icons you see and the XPMs shown on creation of an ellipse)
- Element Widget support for ellipses
- Box selection for ellipses
- Point on Ellipse constraint based on the gardener's method based on Ulrich's function proposal (radcan simplified, i.e. with simplify_radical sage function)
- Tangent: Ellipse to Line based on DeepSOIC's geometric formulation (radcan simplified)
Sketcher New Feature: Internal Alignment Constraint
- The element to which internal alignment is applied has to be selected last.
- All other elements are added in the order of priority, taking into account existing elements
- Art by Jim (beautiful icons).
Sketcher New Feature: Tool to show/hide/restore the internal geometry of an element
- New functionality for show/hide internal geometry:
toggles between hiding all unused internal geometry elements and showing all internal geometry.
The restore function is implicit to the showing all internal geometry
Sketcher New Feature: Arc of Ellipse support
- Part::Geometry + Python implementation
- ArcOfEllipse creation method
- Art by Jim (all the icons you see and the XPMs shown on creation of arc of ellipse elements)
- Sketcher Element widget for ArcOfEllipse.
Bug fix: Select elements associated to constraints works now for foci internal alignment constraints
Ex 1: User selects constraints from the list => right click => select "select elements" from the contextual menu => The elements (edges,vertex) involved in the constraint(s) are selected.
Ex 2: User selects (a) constraint(s) => Clicks button in toolbar (if included by the user) => The elements (edges,vertex) involved in the constraint(s) are selected.
Intended as visual aid to see which elements are being affected by a constraint.
Requested by Jim on thread:
http://forum.freecadweb.org/viewtopic.php?f=19&t=6875&start=10
Solving another Mantis ticket I can not find now.
