Adds a few new Expression functions with the goal to:
- Simplify Placement, Rotation, Vector and Matrix object creation.
- Add new matrix functions for rotation and translation.
This adds a function cbrt(arg) to the freecad-expressions that computes
the cube root of arg. Instead of arg^(1/3) this handles the units of the
argument, so that one can compute units from p.e. ml to mm.
cbrt(27 ml) → 30 mm
instead of
(27 ml)^(1/3) → 30
Cell binding allows one to bind a range of cells of one sheet to another
range of cells of an arbitary sheet, including any empty cells in the
range.
The binding is implemented with PropertyExpressionEngine and
PropertySheet::setPathValue(), which binds a special path of
PropertySheet, such as
.cells.Bind.A1.D1
to an expression, such as
tuple(.cells, <<A2>>, <<A5>>)
The A1 and D1 in the example above specifies the binding start and end
cell address. And <<A2>> and <<A5>> are the range of cells to bind to.
Note that you can use any expression that evalutes to string for the
binding destination, e.g. <<A%d>> % B1, which uses the value inside B1
to construct the binding destination. The '.cells' in the tuple shown
above is an example to bind cells of the same PropertySheet. It can be
change to to reference to any other spreadsheet, even those outside the
current document, e.g. Document#Spreadsheet001.cells
Any object reference inside this function is treated as hidden to
exclude it from dependency calculation. This function allows some form
of cyclic depdenency.
Merger note: renamed from "HREF" to "HIDDENREF" to avoid confusion with
the standard "hypertext reference" use of HREF.
Remove runtime check when constructing FunctionExpression, in order to
support future built-in function. Exception will be thrown when
evaluating the expression to inform user about the error.
mscale(matrix,vector|tuple) for scaling matrix
minvert(matrix|placement|rotation) for inverting matrix, placement or
rotation
create(type,arg...) for creating Python object of given type (currently
only support 'matrix', 'placement', 'rotation', 'vector'
* Support sub-object reference syntax using the following syntax,
Part.<<Box.>>.Placement
or, with sub-object label referencing
Part.<<$Cube.>>.Placement
* Extend indexing support, including range based indexing, e.g.
A1[B2+1][C3][D4:-1]
* Add new constants, None, True, true, False, false.
