Flow Lines

A generative SVG tool that draws evenly-spaced streamlines through a two-dimensional vector field F(x, y) defined by a pair of math formulas. Type your own formulas or hit Randomize to grow brand-new ones from an expression grammar, tune line density, integration step and simplification, and export clean polyline SVG output ready for your pen plotter. Every design is captured in the URL, so you can share it with a link.