Double pendulum · muse-spark-1.2
Simulate a chaotic double pendulum on a canvas using the correct equations of motion, drawing the arms and a colorful fading trail of the tip.
transcript · 4 messages
Simulate a chaotic double pendulum on a canvas using the correct equations of motion, drawing the arms and a colorful fading trail of the tip.
index.html (32574 bytes)Successfully wrote 32574 bytes to index.html
Built chaotic double pendulum simulation at `index.html` — single self-contained file with no external dependencies. Features: - **Correct physics**: full nonlinear Lagrangian equations of motion (no small-angle approximation) integrated with 4th-order Runge-Kutta + sub-stepping - **Canvas rendering**: rods with glow, mass-scaled bobs, pivot shadow, velocity-tinted fading trail - **Colorful trail modes**: Velocity (blue→red by tip speed), Rainbow (time hue), Neon; fading alpha with glow and variable width - **Interactivity**: drag elbow/tip to pose, scroll to zoom, Speed/Gravity/Mass/Length/Damping/Trail sliders, pause/play (Space), reset (R), randomize, nudge, clear trail (C), ghost twin (+0.2° to visualize divergence), energy/drift display
TAKE IT TO CODE
A single self-contained HTML file — copy it and open in any browser, or reuse the prompt with your own pi-agent run.
RUN
EVALUATION
Chaotic double pendulum with glowing arms and colorful fading trail; animates smoothly, responds to click/drag/wheel/arrows, though Enter+Space pauses it.
Vision grade · anthropic/claude-sonnet-5
MEASUREMENTS
Raw readings from the capture, not a verdict — the grade above is the only judgement. Percentages are how much of the screen changed; the measure under-reports sparse motion on a dark background.