An interactive 2D electric field visualizer built in C using raylib. Place positive and negative point charges on a grid and watch the field update in real time — visualized as a heatmap and vector arrows.
Single dipole (opposite charges)
Two dipoles — unlike poles facing
Two dipoles — like poles facing
Each grid cell stores a charge value. Every frame, the electric field vector at each cell is computed by summing the Coulomb contributions from all non-zero charges:
direction = unit vector from charge to point
Field magnitude is normalized across the grid and mapped to a black -> yellow heatmap.
| Input | Action |
|---|---|
| Left click | Place positive charge (+1) |
| Right click | Place negative charge (−1) |
| Click existing charge | Remove it |
| R | Clear all charges |
Requires raylib installed on your system.
git clone https://github.com/UniquePython/e-field-visualizer
cd e-field-visualizer
make > /dev/null && bin/e-field-visualizer- raylib — graphics and input
- Standard C:
math.h,stdlib.h,string.h,stdbool.h,time.h