Mandelbrot explorer · laguna-s-2.1
Render the Mandelbrot set with a smooth color gradient on a full-screen canvas, with click-and-drag to pan and mouse-wheel to zoom.
transcript · 15 messages
Render the Mandelbrot set with a smooth color gradient on a full-screen canvas, with click-and-drag to pan and mouse-wheel to zoom.
thinking
The user wants a single-page web app that renders the Mandelbrot set with smooth color gradients on a full-screen canvas, with click-and-drag to pan and mouse-wheel to zoom. Everything should be in one self-contained index.html file with CSS in a <style> tag, JS in a <script> tag, and no external resources. Let me write this file. I'll include: 1. A full-screen canvas 2. Mandelbrot set rendering with smooth coloring 3. Click-and-drag panning 4. Mouse-wheel zoom Let me write a comprehensive implementation. For smooth coloring of the Mandelbrot set, I'll use the standard algorithm with normalized iteration counts. The formula for smooth coloring is: mu = n - log(log(|z|)) / log(2) where n is the iteration count when the point escaped. Let me write this now.
I'll create a self-contained Mandelbrot renderer with smooth coloring, pan, and zoom.
/tmp/ws/index.html (7448 bytes)Successfully wrote 7448 bytes to /tmp/ws/index.html
thinking
The file has been written. Let me verify it exists and is correct.
Let me verify the file is in place and well-formed.
{"command":"ls -la /tmp/ws/index.html && wc -l /tmp/ws/index.html"}-rw-r--r--. 1 node node 7448 Aug 1 17:49 /tmp/ws/index.html 245 /tmp/ws/index.html
thinking
The file exists. Let me do a quick sanity check on the structure - the file should have CSS in a <style> tag, JS in a <script> tag, and be fully self-contained. Let me verify the basic structure.
The file is present. Let me verify the HTML structure is sound.
{"command":"cd /tmp/ws && grep -nE '<(style|script|canvas|body|html|div)' index.html"}2:<html lang="en"> 7:<style> 20:<body> 21:<div id="info"><span id="coords"></span><span id="hint">Drag to pan | Scroll to zoom | Click to recenter</span></div> 22:<canvas id="canvas"></canvas> 23:<script>
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
Mandelbrot set with smooth color gradient; click, drag, and wheel all pan/zoom correctly; no idle animation, keyboard inputs unused as expected.
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.