This approach divides the screen into a grid. The simulation tracks the density (color) and velocity (movement) of the fluid at each grid cell. This often relies on a simplified version of the Navier-Stokes equations.
: Assisting in the detailed wiring phase of a project.
: Collecting part numbers, designations, and types in the background. fluiddraw p5
Moreover, the principles of FluidDraw p5 have been adopted by commercial tools (e.g., Rebelle’s watercolor simulation, Procreate’s wet mix), though p5 remains the most accessible educational gateway.
The core of any FluidDraw application is the fluid solver. In p5.js, there are two primary approaches to implementing this: a Pixel-based approach (Eulerian) and a Particle-based approach (Lagrangian). This approach divides the screen into a grid
: Users have access to extensive libraries where symbols are grouped by product families. These can be placed into circuits via simple drag-and-drop or search functions.
: Features multilingual project support, enabling the easy translation of circuit documentation for global distribution. Lifecycle and Current Status New products 2012 - Festo : Assisting in the detailed wiring phase of a project
Fluid solvers in p5.js face limitations: JavaScript in the browser is single-threaded, and large grids (e.g., 200×200) may drop frame rates. However, p5’s WebGL mode can offload dye rendering to the GPU, and clever tricks — like running the solver at half resolution — maintain interactivity. Many FluidDraw p5 implementations use a for velocity, then upscale dye display smoothly, achieving 30-60 fps on modern machines.