Sketcher Ellipse: porting tangent-line to DeriVector2
Replacing a ton of unreadable, sage generated math code with
easy-to-manage C++ code.
Sketcher Ellipse: porting internal align-t to DeriVector2
Sketcher Ellipse: small math refactor; const members
Moving the repeating code computing deriv+value of major radius to a
method of GCS::Ellipse.
Marking several methods of DeriVector2 as const member functions.
Sketcher Ellipse: porting arc angle rules to DeriVector2
Just porting.
Probably a complete remake of the concept is worth... Angles can be
calculated explicitly, there's no need to load the solver. I see no
benefits whatsoever on using the solver to keep track of angle values.
Sketcher Ellipse: porting equality to DeriVector2
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).
GCS::Vector2D was morphed into a DeriVector2, a derivative-aware vector.
A bunch of vector math methods were added that implicitly calculate
respective derivatives. Now, there is no need to calculate the partials
- most is done implicitly.
AngleViaPoint: fixes in UI routines + new messages
Goofed undo message in tangency via point is fixed.
Forgotten updateActive, clearSelection have been added.
New more informative error messages for tangent constraint.
AngleViaPoint: using it instead of via line tangency
* replaced the helper construction line for ellipse-to-ellipse and
similar tangency with a point. Using tangent-via-point there
* deleted tangency via line for point-to-point on
(cherry picked from commit 9e3fa8c8de0f49c0ef3c978e015eb905358dbdd9)
AngleViaPoint: internal/external tangency locking
*Added automatic tangency type lockdown for all new constraints (only
for point-wise tangency).
Tangency type is stored in the constraint datum field, as an angle value
shifted by Pi/2 (to be able to treat 0.0 as undefined type).
Added ability to switch the tangency by setting datum value from python
(can be abused by passing arbitrary angle).
Further simplified the tangency related code in Sketch.cpp.
AngleViaPoint: added license to Geo.cpp
AngleViaPoint: renames in Constraints.cpp/.h
Changed some names to increase self-explanatoryness:
bool "remapped" renamed to "pvecChangedFlag"
"ReconstructEverything()" renamed to "ReconstructGeomPointers()"
AngleViaPoint: renames in Constraints.cpp/.h
Changed some names to increase self-explanatoryness:
bool "remapped" renamed to "pvecChangedFlag"
"ReconstructEverything()" renamed to "ReconstructGeomPointers()"
AngleViaPoint: using for endpoint perpendicularity
+ direction lockdown, just as with tangency.
+ quite a lot of old code is gone because of that
AngleViaPoint: perp-ty UI routine made similar to tangent
(Git has made a very messy diff.)
The changes are:
* Perpendicularity-via-point (3-element selection) support added.
* Endpoint-to-curve and endpoint-to-endpoint supports all shape
combinations.
* a bit of code cleanup and clarifications.
AngleViaPoint: placement of perpendicular icon in 3d view
AngleViaPoint: fix: allow setDatum of perpendicular constraint
AngleViaPoint: fix: centers of ellipses are not endpoints
isSimpleVertex used to return false for centers of ellipses and arcs of
ellipses, which made them being accepted for point-to-point tangency.
Should be fixed forever, mo more changes are expected to be necessary
for new types of geometry.
AngleViaPoint: precalc with OCC (work in progress)
Work in progress (not yet working).
Using OCC's tangent to replace implementation of
SketchObject::calculateAngleViaPoint.
AngleViaPoint: fix math: normal now points inwards, where it was intended initially and goofed up.
AngleViaPoint: adding comments to the code
AngleViaPoint: using GeomCurve::closestParameterToBasicCurve for angle precalculation
AngleViaPoint: Py method: changeConstraintsLocking
changeConstraintsLocking(True) - locks/re-locks all lockable
tangency/perpendicularity constraints of the sketch (applicable to
existing sketches).
changeConstraintsLocking(False) - removes locking information from
lockable constraints
AngleViaPoint: final SketchObject::calculateAngleViaPoint
Now, finally, using OCC functionality (thanks Abdullah!), without
composing temporary Sketch object.
Solver iteration limit independent of system size (reduces hangs when
solver fails to converge).
Repaint() instead of update() to force render for every movePoint.
Sketcher: New Constraint AngleViaPoint
* Adding generic CalculateNormal() method
* Reconfiguration of GCS geometry classes: adding a base class "Curve",
that has a pure virtual function CalculateNormal().
* Initial inplementation of the new function.
* adding Vector2D class (I wanted to reuse the existing, but got wierd
compile errors, so implemented a new one... TODO.)
* Adding redirection support into GCS shapes. Adding a Copy method to
GCS::Curve.
* Automatic point-on-object
* Angle precalculation: when AngleViaPoint is added, angle is properly calculated based on
existing geometry.
* Added tangency-via-point using one.
* Implemented placement of tangency-via-point icon in 3d view. Also
affected is the placement of point-on-object icon (since it is very
similar code, it is now shared with tangency-via-point)
* Placement and moving of angle datum
Functions: calculateAngleViaPoint, isPointOnCurve,
calculateConstraintError exposed to python
* Endpoint tangency: All endpoint-to-endpoint and endpoint-to-curve tangency now works
through AngleViaPoint constraint and obsolete code clean up (most procedures
addConstraintTangentXXX2YYY)
Part: Extension of Geometry::Curve to wrap more functions of OCC
Apart from:
bool tangent(double u, gp_Dir&) const;
that was already implemented, now it also implements:
Base::Vector3d pointAtParameter(double u) const;
Base::Vector3d firstDerivativeAtParameter(double u) const;
Base::Vector3d secondDerivativeAtParameter(double u) const;
bool normal(double u, gp_Dir& dir) const;
bool closestParameter(Base::Vector3d point, double &u);
i.e. apart from giving the tangent vector for a given curve at parameter value u,
it also gives:
- The point cartesian coordinates of the curve point at parameter value u
- The vector of the first derivative at parameter value u
- The vector of the second derivative at parameter value u
- The normal vector to the curve at parameter value u
- The parameter value of a curve closest ot a given point
Code cleanup: Changing Trim functionality of Ellipse to use OCC calculations
Part Curve functions extension: closestParameterToBasicCurve
It provides the parameter of the curve closest to a given point. If the curve is a Trimmed curve, the parameter of the basic underlaying curve closest to the point is provided.
- ArcOfEllipse enhancement: Tangency ArcOfEllipse to ArcOfEllipse or ArcOfCircle by selecting end/starting points...
- Minor bug corrections (Thanks DeepSOIC)
- ExposeInternalGeometry python command
- DeleteUnusedInternalGeometry python command
- On deletion of an Ellipse/ArcOfEllipse all further unconstrained internal geometry is also deleted.
- This cleans up the code by eliminating code repetition in the creation methods.
- Major bug fix for autoconstraints for ellipse and arc of ellipse creation (for both creation methods)
- Major bug fix Start and Endpoint constraints of an arc of ellipse where not taking into account that Sketcher arcs are always CCW, so they have to be exchanged if we convert a CW arc into a CCW arc.
Sketcher: General bug fix: Tangency wrongly suggested
What?
=====
- On creation of a shape autoconstraints are suggested.
- Tangent autoconstraint was suggested even with lines perpendicular to the tangency direction
Reproduce
=========
- Make a circle on the origin and move the mouse along the X axis, it will suggest a tangency that is impossible
- Click on the axis and no circle will be created
Solution
========
- The SeekConstraint now can use the parameter dir to give a direction that is substantially perpendicular to the expected tangency, so that
if an object having a direction (a line) is hit, a tangency will not be suggested if within around 6 degrees of being parallel.
- Additionally, if such a line is an X,Y axis of the sketch, tangency will only be suggested if the direction is within 6 degrees of being perpendicular (i.e. it is almost tangent already while sketching).
- This difference is due to the fact that an X or Y axis can not "move" to meet the object under creation, whereas a line can.
Elements that have internal geometry are created with the internal geometry on creation.
It has been under discussion for a long time. Ulrich was in favour (asked for it several times).
DeepSOIC implemented the focus because he hated the poor dragging of the ellipse when empty.
- Visual representation of equality constraint: Separate circle and arcofcircle implementation from ellipse and arcofellipse implementation
- Fix for Alignment constraint: Now it allows to assign a second element, one by one
- Box selection for ArcOfEllipses
Fixes the bug that vertex far away got selected due to lack of sync between the selection and draw loops.
- Minor changes to alignment constraint selection to avoid to create objects just for simple calculations
- Equality constraint of Ellipse, ArcOfEllipse and combinations of those elements
- Bugfix for internalalignment creation of major and minor of ellipse and extension to arcofellipse
- Trim support for ellipses
- Solver threshold for rank calculation set at 1e-13.
- Trim support for arc of ellipse
- Ellipses and ArcOfEllipses as external geometry
- Validate Sketch now supports arcs of ellipse
- Tangents of Ellipse or ArcOfEllipse to any of ArcOfcircle, circle and Ellipse (using construction elements)
- Perpendicularity constraint
- Bug fix: Show/hide internal geometry not working for external geometry
- Visualization of Internal alignment constraints when selecting in the constraint widget
- Equality for ellipses and arc of ellipses
- Fix of internal geometry creation
- Fix swapped negative and positive ends of major radius line on creation
- Removing the fudge factor (no longer needed)
- Fix to restore internal alignment - autodecide on constraint creation which point of the line is closer to the position
- Change mode so that focus1 is not a point, but two doubles so that visual model and solver model match in number of points.
- Solver fix to deal with reduced constraint partials accuracy (threshold for matrix rank calculation tweak)
- Changes suggested by logari81
- 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
Based (and solves) Mantis ticket:
http://www.freecadweb.org/tracker/view.php?id=1643
The ticket refers only to redundant, and ask for deletion.
Two commands are created, one for redundant constraints and other for conflicting constraints.
As usually removing one constraint of the "at least one" is sufficient, the implementation selects the constraints (but does not delete them).
The user therefore easily identify the constraints involved and decide to delete them.
This implementation takes into account the edit->Actsketch that ViewProvidedSketch creates for solving, as it is this instance the one that generates the messages in the Sketcher Taskbar.
No buttons in the toolbar by default (can be added by the user), but an hyperlink in the solver messages which triggers the selection of the appropriate command (conflicting or redundant).
commit 695becbbfff961b13e3edb5a4e1e4487bc53b4bb
Author: Abdullah Tahiri <abdullah.tahiri.yo@gmail.com>
Date: Mon Aug 4 15:24:33 2014 +0200
- Making combo disable state.
- Updating Art (Thanks Jim!)
commit d5391d40ace450fa2e65fe2b4ab8029ad37cacf8
Author: Abdullah Tahiri <abdullah.tahiri.yo@gmail.com>
Date: Fri Aug 1 00:40:15 2014 +0200
- Adaptation of code to Workbench's new Template structure.
- Minor adaptation of new ViewProvideSketch code to new constraint code (only in code extensions needed for element Widget)
commit ecdec20afa33c9a950e6054e80e4aa9c72aad8b6
Author: Abdullah Tahiri <abdullah.tahiri.yo@gmail.com>
Date: Thu Jul 31 15:31:38 2014 +0200
Fix so that when applying a coincident constraint to a plurality of points,
if one constraint on a couple of points exists, no new coincident constraint is
added to this couple.
Fixes: http://forum.freecadweb.org/viewtopic.php?f=3&t=6890
commit 32ef59d76e6c63356f5d36598ca11eb47c2e52af
Author: Abdullah Tahiri <abdullah.tahiri.yo@gmail.com>
Date: Thu Jul 31 14:13:58 2014 +0200
Add some placeholder art for icons to avoid having a cross icon and annoying icon not found messages.
commit ccb60a3a7e71a0eb8ad5d896542314a98ef314a8
Author: Abdullah Tahiri <abdullah.tahiri.yo@gmail.com>
Date: Mon Jul 28 20:15:29 2014 +0200
- Fixed Length Constraint accelerator (D) to SHIFT+D to avoid colision with other higher level FreeCAD accelerator assignment.
- Selection Accelerators now toggle on shortcut execution, and act when no other element is selected (fixed bug)
TODO: Art+Toolbar
commit 791358d046e8eeb03fa00272f5627c75254c48eb
Author: Abdullah Tahiri <abdullah.tahiri.yo@gmail.com>
Date: Mon Jul 28 15:12:07 2014 +0200
Fixing shortcut system:
- Take shortcuts automatically from CommandManager.
- Fixed two shortcuts in CommandConstraints (Point on Object - O and
Parallel Constraint - P to SHIFT+O and SHIFT+P to avoid collision with other constraints)
- Fixed shortcuts in CommandConstraintAccel to non-already-existing combinations
- Fixed Sketcher Menu to show accelerators
commit 12d366406a45038ce1a4f725a98e4f570475084b
Author: Abdullah Tahiri <abdullah.tahiri.yo@gmail.com>
Date: Mon Jul 28 11:53:37 2014 +0200
Implemented SHIFT multiple selection functionality in listwidget.
commit 0606ea7dfe38fdf8924f65f14382f1b327145c80
Author: Abdullah Tahiri <abdullah.tahiri.yo@gmail.com>
Date: Mon Jul 28 11:02:02 2014 +0200
Added Sketcher Accelerators for:
- Selection of H Axis
- V Axis
- Origin
Main TODO: Shortcuts and Shift in list widget implementation
commit 297464807fc56fbcf31efadff9625fc05bb20c41
Author: Abdullah Tahiri <abdullah.tahiri.yo@gmail.com>
Date: Wed Jul 23 11:37:21 2014 +0200
Implementation of:
- Switch on 'Z' instead of 'Shift'
- Checkbox to select whether element internal name (e.g. Edge10) should be presented on list or not (Sponssi requested)
- Checkbox to force going back to "Edge" type on change from one element to the next (Sponssi requested)
commit c8764b116acdcfdc7ef7658dc6009fb8db807906
Author: Abdullah Tahiri <abdullah.tahiri.yo@gmail.com>
Date: Wed Jul 23 07:57:11 2014 +0200
TaskSketcher Elements:
- Store Vertex within elements for optimization (reduce loops searching for vertex in every function call)
- Added the accelerators described below + Toggle Construction as context menu commands
- Fixed bug (Thanks sponssi!): After some element has been preselected from the list and the cursor moved to the drawing area,
the preselection doesn't seem to be resetted in the widget or whereever it is handled.
Tapping shift still swaps the preselection between the points of the previously selected element.
The left mouse button has to be clicked in the draw area to get rid of this.
http://forum.freecadweb.org/viewtopic.php?f=10&t=6861&sid=7eea4adc7ecf4cebd561b357601866a2&start=20
- Extended naming of elements, to facilitate writing python code (as requested by sponssi).
- Minor modifications (creation of utility fuctions, code readibility, ...)
Sketcher Workbench:
- First effort to add a toolbar with the accelerators.
Sketcher Accelerators: (Perform actions on existing elements, as opposed to Geometry Creation, not restricted to applying constraints)
- Close Shape : of selected edges (i.e. lines and arcs)
- Connect : selected edges (connect endpoint edge with starting point of next edge according to selection order)
- Select Constraints : associated with currently selected edges
commit 1dc18204a4e2e38f71d729a7692383f50a7d4654
Author: Abdullah Tahiri <abdullah.tahiri.yo@gmail.com>
Date: Sat Jul 12 16:06:48 2014 +0200
New alternative implementation of the Sketch Element List.
This version comprises:
- Identification via icon of type of geometric element (Point, Arc, Line, Circle) and
Type of selection (Edge, Starting Point, End Point, Center Point)
- Corrected a bug where upon selection from the combobox, the icons were not updated (Thanks Jim!)
- Implementation of jump to next valid type of last preselected element (aka fast-forward) for all the types.
commit 4d472ef796362405c3982355f86489fa92cbfe6d
Author: Abdullah Tahiri <abdullah.tahiri.yo@gmail.com>
Date: Thu Jun 26 17:15:51 2014 +0200
Feature request by jmaustpc
- When an object does not have an element, lets put a different icon.
- Currently the constraint lock icon is used until availability of a new one.
commit 6d15478f6533ff3805520a8ca36d1c41908cb0af
Author: Abdullah Tahiri <abdullah.tahiri.yo@gmail.com>
Date: Thu Jun 26 14:54:23 2014 +0200
Bug fix (preselection not disappearing on changing element without the element Type).
commit e33043e17781fcf6399257696f115f68ab4580ec
Author: Abdullah Tahiri <abdullah.tahiri.yo@gmail.com>
Date: Thu Jun 26 14:39:20 2014 +0200
New nicer icons by jmaustpc. They look much nicer :-)
commit 2ce2d6ff1ad2d81b0b1e30ffcbe9f2cc445f2e5b
Author: Abdullah Tahiri <abdullah.tahiri.yo@gmail.com>
Date: Thu Jun 26 14:37:21 2014 +0200
Fast-Forward functionality:
- If an element not having "midpoint" is preselected, then on pressing SHIFT the
Type will jump from EndPoint to Line skipping midpoint.
- This is intended as a productivity feature, as most sketch elements usually are lines
commit 1865d06d06582a49da10ddc123133807a4593060
Author: Abdullah Tahiri <abdullah.tahiri.yo@gmail.com>
Date: Wed Jun 25 15:47:22 2014 +0200
Bug fix (thanks jmaustpc)
- Preselection is maintained even though the geometric element does not have the "Type".
- Fix involves calling for remove preselection in TaskSketcherElement
- Implementing the response to the message RmvPreselection in ViewProviderSketch
commit 14e21da4b4ed0e9a2b3e846a4e51f6745d5e0ab7
Author: Abdullah Tahiri <abdullah.tahiri.yo@gmail.com>
Date: Mon Jun 23 14:25:35 2014 +0200
Fix Bug with null pointer (thanks jmaustpc!)
Clean up code
commit 0d99eb633f1bca45d4e7bb22c57bd4892767a390
Author: Abdullah Tahiri <abdullah.tahiri.yo@gmail.com>
Date: Wed Jun 11 16:32:48 2014 +0200
New widget for the Taskbar of the Sketcher WB.
The objectives of this widget are:
1. Allow editing of sketches when they have (partially) overlapping lines of any type
(construction/external/normal).
2. Allow the construction of sketches using the keyboard (less mouse intensive)
The widget works as follows:
1. A QListWidget presents a list of elements, element is here a geometric element
formed Types edges, starting points, end points and midpoints (e.g. circles, arcs)
2. On hovering/Entering one item in the list, it is preselected for easy identification.
3. The selection can be switched from one type to another using the SHIFT key
(press and release) in a round-robin fashion (or you can select it using the droplist)
4. Selection of different types is possible (e.g. two points and a line).
5. The contextual menu accessible by right click allow to apply a constraint to the
selection.
6. The constraints in the contextual menu have shortcuts, so you can actually use the
shortcut directly from the QListWidget.
Additional features introduced to other parts during development...
- New color introduced for Types that are selected and preselected at the same time
- Edges is a SoLineSet. You can not apply many So modifiers (width,offset) to parts of a SoLineSet.
An edge part of a SoLineSet that is drawn after another one, covers it unless it is closer to the
camera. The system of manual offsets already in place for points has been extended to properly
handle (i.e. show) overlapping lines part of a SoLineSet.
