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LEparagliding Studio 0.3.0

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@github-actions github-actions released this 27 Jul 10:01
· 40 commits to main since this release
v0.3.0
34e5a9b

LEparagliding Studio 0.3.0 — a Playground tab with a live, inflatable wing.

A Qt 6 / Open CASCADE desktop port of Pere Casellas' LEparagliding 3.28 "Jardins" paraglider design program (GPL-3.0): the complete calculation engine, mechanically translated from Fortran and validated byte-for-byte against the original, wrapped in a modern design studio — with a full XFLR5 integrated for aerodynamic analysis of the wing you are designing.

What's new in 0.3.0

The Playground tab — a live soft-body wing. ⚠️ This is a very early experiment and cannot be used for anything real. It makes no engineering claims of any kind: it is a physics toy, tuned for stability and fun, not accuracy. Do not use it to judge a design, and certainly not to build or fly one.

With that said: after any preview or export, the Playground tab assembles your calculated wing into a real-time XPBD cloth simulation —

  • The wing skin (with correct fabric widths from the ballooning law), the ribs, the V/H/VH-rib and mini-rib diagonals, and the full labelled line cascade down to the carabiners.
  • Internal pressure inflates the cells; a fake lift, applied along the top surface's own normals, tensions the lines and holds the canopy's arc open.
  • Brake sliders pull synthesized brake handles and crumple the trailing edge per side — expect dramatic swings; there is no pilot mass and no aerodynamics, so the wing reacts like a kite in still air.
  • Drag to orbit, wheel to zoom. The simulation core is vendored from the author's SoftWingLab project.

Also in this release: the engine writes a small companion simulation mesh alongside every calculation, and --playground <lep-sim.json> opens the app straight onto the tab.

Downloads

Platform File Install
Windows x64 LEparagliding_v0.3.0_winx64.zip Unzip anywhere, run LEparagliding.exe (self-contained)
Linux x86-64 LEparagliding_v0.3.0_linux-x86_64.AppImage chmod +x, then run — needs glibc 2.35+ (Ubuntu 22.04+, Debian 12+, Mint 21+)
macOS (universal) LEparagliding_v0.3.0_macos-universal.dmg Drag to Applications; unsigned build — right-click → Open on first launch
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