Canvas in Node.js
summary
Claims server-side canvas rendering with node-canvas (Cairo backing) plus jsdom and patched flot actually produces PNG charts via createPNGStream / toBuffer, suitable for embedding where iframes or client canvas are forbidden. Demo shows minimal patches to flot, working image output, caching and privacy benefits, and loss of interactivity; tradeoffs are added server load and font availability. Flot 0.8 reduces required hacks; overall approach works for static chart generation.
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chapters (7)
- 0:00Start
- 0:51Story Time
- 1:19The story continues
- 2:55Text Example
- 3:33Gradient Example
- 4:41Enterjsdom
- 10:53Going a little further
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