History

2024 04 02

• Fix serialization of "circle" (method data())

2024 03 08

• Fix of #47, detection of resultants of "q"
• Fix tick label digits in "grid"

2024 03 04

• Add MatchByParallel()
• Add fb_system()
• Fix fb_fix1()

2024 03 02

• Fix snap behaviour of "force"
• Add fb_reactions()

2024 02 23

• Fix label offset for "rope"

2024 02 21

• Enforce snaptogrid of "force" objects when dragging the vector

2024 02 19

• Fix #46, update of input fields by "force" object

2024 02 17

• Modify behaviour of fb_vars (nonzero numeric tans values now aren't ignored).
• Add unit test for fb_vars.

2023 12 05

• Implement #32 (avoid zero length of force vectors)

2023 12 02

• Takeover of https://github.com/aaronamran/meclib_fork/blob/main/meclibchanges.js as imeclib.js. In this version most objects can be moved by JS scripts. See Moving objects by scripts

2023 10 06

• Enforce grid distance of one axis unit (sometimes sub-gridlines were drawn)

2023 08 03

• Switch off automatic point names (relevant for script-generated points)

2023 07 08

• Auto-correction of input in "momentGen" and "forceGen" to avoid complaints by STACK about forbidden names (with more then one character before the first underscore).

2023 06 28

• Add object "frame"

2023 06 09

• Fix issue #33 in "grid" (formatting of axes tick labels in JSXGraph 1.5)

2023 05 12

• Add option "dotted" to "force"

2023 05 08

• Fix issue #38 in fb_unit

2023 05 04

• Adjust container sizing logics in "grid" to upcoming new STACK version
• Add "Change" event in the update() function for notification of changed input in new STACK version

2023 04 30

• Change layer of "grid" to 8. This puts axes and grid to the foreground. Grid should be in the background. See issue #37

2023 04 29

• Extend "polygon", can have multiple holes now.
• Color of "line" objects can be specified via "name" argument
• Color of "node" objects can be specified via optional argument

2023 04 16

• Add English version of fb_vars and fb_unit

2023 04 09

• Add unit test for fb_vars

2023 04 08

• Change the test concept for fb_unit. Test is split into an interactive one (quiz mode adaptive) and a non-interactive one (quiz mode direct). This was enforced by the non-interactive test suite failing by timeout in adaptive quiz mode, which is better for interactive tests.
• Add interactive test question for fb_vars.
• Add unit test question for Feedback for unidirectional supports.

2023 04 07

• Add fb_name to fb_fbd.mac

2023 02 07

• Add tests T03a and T03b to unit test QA 01 for fb_unit. They adress cases with zero tolerance.

2023 01 23

• Implementation and unit test (QA 05) for fb_bar
• Fix unit test (QA 04a) for Feedback for line loads
• Fix unit test (QA 03) for Feedback for unidirectional supports

2023 01 21

• Complete conversion of Feedback for line loads to use of castext(). Closes #27.

2023 01 17

• Fix Feedback for line loads formatting of feedback for resultant value

2023 01 16

• Fix fb_unit feedback for correct results

2023 01 13

• Deactivate snaptopoint for inactive forces to prevent unintended misplacement.

2022 12 16

• Create function fb_bar_name and corresponding unit test (QA 02 in the Demo Moodle Course)
• Improve function toTEX() in meclib. Better display of multi-character indices.

2022 12 11

• Improvements of unitless value handling in fb_unit

2022 12 09

• Add diagnostic message to init() function (for unknown object specifications)

2022 12 02

• Improvements of zero value input handling in fb_unit
• Streamlining of the test question for fb_unit (QA 01 in the Demo Moodle Course)

2022 11 25

• "crosshair" writes scaled coordinates to names.

2022 11 23

• "grid" Support for inverted axes directions
• Avoid empty names in names input field by converting empty names to NONAME.

2022 11 05

• Version info string modified. Now JSXGraph version and Meclib version are displayed.

2022 10 30

• "spline" with option pure has no grid snap of the control points. This ensures that the control points are set as specified.

2022 10 16

• Refactoring of fb_unit More reliable handling of zero values.
• Test question for fb_unit.

2022 10 02

• Add check for units mismatch to fb_unit. The default feedback of the answer test can be switched off.

2022 10 01

• Introduction of boolean versions of the feedback functions for values (fb_numberOK(), fb_varsOK(), fb_unitOK()), see e.g. fb_vars
• Implementation of fb_dim, dimensional check of expressions with physical quantities.
• Handle student's answer = 0 in fb_number and fb_unit.

2022 09 22

• Consistent naming and signature of feedback functions for free body diagrams to fb_xxx_name(obj, names, index)

2022 08 15

• Adjustment of "circle2p" to newer JSXGraph (modified signature of intersection object)

2022 08 09

• "line2p" got an optional perpendicular line (thus enabling of setting the normal to a line)

2022 08 02

• fb_vars upgraded to STACK 4.4

2022 08 02

• Move source of feedback functions for free body diagrams from the wiki to the source file
• Successful test of include mechanism in question variables and question text (new in STACK 4.4)

2022 07 31

• Adjustment to JSXGraph 1.4.5 (there were problems with text input fields)

2022 07 22

• Add state option "silent" to "force", suppresses the infobox at the point
• Make phi argument of "q" optional (resolves #16)

2022 07 19

• Improvement of the precision feedback in fb_unit and fb_number. The percent deviation is given with just one significant figure. "Deviation is at least xxx%".

2022 05 13

• Add options for scale and decimal precision of the coordinate display of "spline" objects
• Improve the feedback function fb_spline(), see Values and Slope of Splines

2022 05 11

• Make update of "spline" more robust

2022 05 09

• Introduction of the constant loadColor
• Enforce consistent appearance of "force", "moment" and "q" objects
• Change was required due to modified default colors in JSXGraph 1.4.3

2022 04 25

• Reorganization of Dynamic display of coordinates.
• Default scale and decimal precision can be set by "grid".
• "force" control points have decimal precision increased by one over the default value.
• Scaling parameter of "circle2p" and "line2p" is obsolete

2021 06 15

• Initial commit, project started