Nelson Files

1.14.0 - (2025-05-30)

Added

• New functions:
• imrotate: Rotate an image.
• scatter3: 3D scatter plot.
• colormaplist: List available colormaps.
• arrayfun: Apply a function to each element of an array.
• nelsonappid: Return the Nelson application ID.
• New colormaps:
• nebula, flag, prism.
• New properties:
• WindowState for Figure objects.
• Units for UIControl objects.
• DefaultFigureAlphamap, DefaultFigureColormap as root properties.
• Support for nix develop, providing a reproducible Bash shell preconfigured with Nelson’s build environment.
  See BUILDING.md for details.
• A justfile to streamline and standardize the build process across platforms.
• Support for:
• Fedora 42.
• Flatpak package distribution.

Changed

• scatter improvements:
• Now returns a scatter graphic object (instead of a line graphic object).
• Improved rendering precision for scatter symbols (pixel-perfect accuracy).
• Supports alpha channel (transparency).
• scatter3 now supports alpha channel.
• spy now uses scatter instead of plot for better accuracy.
• Colormap handling updated to use the new DefaultFigureColormap root property.
• Improved error message when parsing invalid anonymous functions.
• Boost:
• Now supports Boost 1.88 (#1378).
• Minimum required version set to 1.71.
• Updated dependencies and platform support:
• Qt 6.9.0 on Windows x64.
• JSON for Modern C++ updated to v3.12.0.
• Mozilla CA certificates updated (Tue May 20 03:12:02 2025 GMT).

Fixed

• #1413: axes function did not properly manage figure objects.

Technical Improvements

• Application ID changed to io.github.nelson_lang.Nelson.
• GitHub CI:
• Now uses Windows 2025 for Windows builds.
• Major workflow rework for improved reliability and maintainability.
• Build system:
• Updated to latest Prettier version.
• Added use of shared library suffix via a CMake macro.
• Included CPU target name in Linux packages.
• Minimized dependencies on SLICOT.