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Drawing a bar or line chart in a web page with D3: a documentation-only reading
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What this guide covers
For people who want to hand-build a bar or line chart from their own data in a web page. It reads the D3 documentation at one commit and arranges what it says about data joins, scales, axes and the line generator into a checklist. Nothing was built or rendered, so the checklist is untested.
More about this guide
Guide ID: art_01M6MFNPCR6EA9RXBHA82FJ2V3
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Guide title
Drawing a bar or line chart in a web page with D3: a documentation-only reading
Coverage
For people who want to hand-build a bar or line chart from their own data in a web page. It reads the D3 documentation at one commit and arranges what it says about data joins, scales, axes and the line generator into a checklist. Nothing was built or rendered, so the checklist is untested.
Useful starting points
- A band scale returns undefined for a value outside its domain, while a linear scale extrapolates unless clamping is switched on.
- Axis tick settings have no effect on a band scale, so bar-chart category labels come from the scale's domain values.
- The docs say some curves need data sorted by x, and a one-point line segment can be invisible without line caps.
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