Qhull in the browser
numbl aims to be MATLAB-compatible, including geometry functions like delaunay, delaunayn, convhull, and convhulln. MATLAB and Octave compute those with Qhull, the standard library for convex hulls and Delaunay triangulations. So I compiled Qhull to WebAssembly as qhull-wasm, which numbl loads as the backend for those builtins on both the command line and in the browser. It uses the same engine as MATLAB and Octave, so its results match.
qhull-wasm-demo is a standalone showcase for that library, with three parts: a 2D triangulation view (click to add points, switch distributions, toggle circumcircles), a 3D convex hull view rendered with three.js that exports to a Gmsh mesh, and a benchmark.
The benchmark is the part I find most interesting. It times Delaunay triangulation in the browser alongside a .m script that runs the same computation in MATLAB, Octave, and numbl, all of which triangulate via Qhull. Since it is the same code everywhere, it makes for an apples-to-apples comparison of the browser against the desktop, and the script is included so you can run it yourself.
Source: concept-collection/qhull-wasm-demo.
