游戏/互动 Game / interactive 工具页 Tool
Roadwright：画轮子，看它滚出的路面 Roadwright: draw a wheel, see the road it rolls on
画一个轮子，立刻看到它无滑滚动时的路面。 Draw a wheel and instantly see the road it rolls along without slipping.
详细介绍Details
Basel Ashraf 的浏览器几何小品：手绘（或选一个）轮子轮廓并放好轴心，即时算出该轮无滑滚动时对应的路面曲线，可调滚速、双轮轴距、路面倾斜，并导出 PNG / 切割文件 / 录制循环。纯前端互动。 Basel Ashraf’s browser geometry toy: draw (or pick) a wheel outline, place its axle, and instantly get the road profile it rolls on without slipping; adjust roll speed, two-wheel wheelbase and road tilt, and export PNG / cut files / a recorded loop. Pure front-end interactive.
适合学什么What to learn
- 游戏/互动 Game / interactive
可直接玩或操作的教学游戏与 WebGL 演示。 Teaching games and WebGL demos you can play in the browser.
- 工具页 Tool
在浏览器里生成 CSS/HTML 的小工具。 In-browser tools that generate CSS or HTML.
为什么推荐Why we recommend it 公开可打开，GitHub 可点进。预览由站点 og 图（1200×630）加边裁成 3:2。 See the road it rolls on). Publicly open; GitHub repo linked.
核验记录：来源、抓取与截图说明Verification log: sources, checks, and captures
HN item 49641755（Show HN: Draw a wheel. See the road it rolls on）。 Show HN item 49641755，仓库开源。HN item 49641755 (Show HN: Draw a wheel. Preview is the site’s og image (1200×630) letterboxed to 3:2. Show HN item 49641755, source on GitHub.
