LogarithmPlotter

Changes for v0.5.0:

New

• New, reworked application icon.
• Graph is now mouse interactive:
• You can now drag to move and scroll to zoom!
• Builtin functions now provide usage when used in the autocomplete of the expression editor.

Changes

• When creating an object that can be positioned, new default behavior is to pick first instead of opening object settings.
• Icons with text now use the SVG's text element, allowing them to integrate better with the system's default font.
• Special characters popup is now context aware (e.g. no sub/supscript symbols in expressions).
• New symbols in special characters popup.
• Integrals and derivatives can now be provided with an executable object (e.g. Functions) instead of strings as function.
• New description on Linux.

Fixed bugs

• Fixing ∞ 'variable' in domains and expressions.
• Several other bugs related to constants in expresions were fixed as well.
• Builtin functions now send an error message when not provided with the proper arguments.

Internal changes

• Updated to PySide6 v6.6.1.
• Reworked continuous functions' rendering to make it faster.
• Removed old bits from an unfinished new parser that weren't used.

Changes for v0.4.0:

Changes

• Fully ported to PySide6 (Qt6).
• Greet screen settings are now scrollable.
• Changelog is now freezed to current version.

New

• Customizable color schemes for expressions.
• New, rewamped and improved picked location overlay settings:
• It's now possible to disable picking x or y when setting a location.
• Properties which are related to positioning (X, Y, Label's X position) can now be set using the picker.
• Visual redesign that enhances readability of settings.
• There is now a button to hide picker settings.

Fixed bugs

• Cursors in expression are now easier to see.
• Symbols in LaTeX rendered Texts cause the LaTeX renderer to crash.
• Underscores in distribution names are automatically removed if the name is modified.
• Autocomplete categories now properly respect theme colors.
• Functions in expressions (like indexOf, map...) now properly send errors when the arguments are of the wrong type or count.
• Executable Objects called (like functions, bode magnitures, phases...) now send an error if provided with no arguments.
• Function calls with no argument no longer make LogarithmPlotter crash under certain circumstances.
• Thank you dialog's lists are no longer draggable.

Internal changes

• A lot of inner changes led by porting to Qt6, fixing a lot of bugs at the same time.
• Disabled auto detect of visual theme if the `QT_QUICK_CONTROLS_STYLE` environment variable is set.
• (macOS, Windows, Flatpak) Drastically reducing installer sizes (more than halved).
• (Launchpad/Ubuntu) Using custom built packages of PySide6, meaning smaller installation and distro dependency.

Changes for v0.3.0:

New

• New completely revamped expression editor:
• Automatic closing of parentheses and brackets (can be disabled in settings).
• Syntax highlighting (can be disabled in the settings).
• Autocompletion is now available (for function names, variables and constants, object names and properties) (can be disabled in the settings).
• Object properties can now be used in expressions (e.g. if you have a point named A, you can use A.x to access its x value).
• Similarly executable objects (Functions, bode magnitudes and phases, distributions, and sequences) can be now be used in expressions (e.g. if you have a function named 'f', you can access its value using `f(value)`).
• LaTeX-rendered formulas are now used in the Objects and History tabs when LaTeX rendering is enabled.
• Errors in formulas are now reported in message boxes.

Changes

• The Object Editor dialog has been completely reworked internally, resulting in notable performance improvements.
• Vast improvements to the objects system: names are now consistently reported and cannot be shared amongst different objects.
• Disabled access to custom variable and function definition in expressions (can cause issues and vulnerabilities)
• When using the set position cursor on Points and Texts, the position change is now saved a single history action: the position setting.
• Distribution are now prefixed with an 'F_' to prevent confusion with X Cursors.

Added translations

• Autocompletion categories (English, French, German, Hungarian).
• Expression editor settings (English, French, German, Hungarian).
• Expression syntax errors (English, French, German, Hungarian).
• On top of the above:
• Hungarian: v0.2.0 added text (thanks @ovari!)
• Spanish: Menu bars (thanks @Sergio Varela)
• You can contribute to translation on Weblate.

Fixed bugs

• Fixing Texts not being properly recognized as texts when saving.
• Text's 'Disable LaTeX' property is now properly saved.
• X Cursors LaTeX rendering made the app crash.
• Attempting to insert special character no longer automatically saves the expression you're editing.
• Proper HDPI support for icons and buttons (note: HDPI is not available for the rendered canvas yet).
• Support for non-latin characters in variables (e.g. greek letters, subtext, suptext)
• Silent error when misentering variable names in the expression editor causing internal issues preventing you from changing the expression ever again and causing issues and rendering.
• Fixing some utils function simplifying parentheses when they shouldn't have (note: you may see more parentheses than before in expressions).
• (flatpak and KDE SDK) Fixing the sometimes invisible buttons on the objects tab on startup.
• (macos) Application string version does not match LogarithmPlotter's version.
• (debian) (Normally) Fixing deb building.

Internal changes

• Object dependencies are now registered on both the dependant object, and the object it's depending on.
• Objects now have a proper per-name registry.
• Object Editor Dialog has been reworked to use loaders instead of loading and hiding every property editor for each property.
• Reworked the file loading system to be able to load dependencies properly.

Changes for v0.2.0:

New

• (EXPERIMENTAL) LogarithmPlotter now has an optional LaTeX integration.
• It requires a LaTeX installation, including `latexmk` and `dvipng` available in the PATH.
• NOTE: LaTeX support is disabled by default and is only for working for the rendering on the graph.
• NOTE: The objects and history tab still use the legacy text based expression rendering.
• Thanks and contributions dialog, showing included libraries and translations, their license and author(s).
• LaTeX rendering can be disabled for texts, even if LaTeX is enabled.

Changes

• History re/undos only redraw the graph every 4 change at most in order to speed up the process when re/undoing a lot of changes.
• Gradients are no longer hidden when filtered out in the history tab.

Added translations

• LaTeX options and error messages
• Thanks and contribution dialog
• New option for text.
• Fixed translation of "repartition" which should be "distribution" in certain remaining strings.

Fixed bugs

• (macos) #1 - Opening files don't work on compiled versions of LogarithmPlotter on MacOS
• (snapcraft) Fixed bug preventing from launching LogarithmPlotter. This fix has been backported to v0.1.8.
• (snapcraft) Files are now properly opened.
• (snapcraft) Added changelog support.

Internal changes

• Moved python modules to "util" directory for more clarity.
• Moved flatpak metainfo to eu.ad5001.LogarithmPlotter repository.
• Componented the Mathlib library in order to have a more readable source.
• Added documentation for most internal JavaScript modules.
• Merge label drawing methods due to it's complexity.
• (flatpak) Updated SDK version to v5.15-21.08.