:en:User:Nux/pie chart - todo#Hopes and dreams

below 100 + 0.2

• below 100 + 0.4

• below 100 + 0.6

• below 100 + 0.8

• below 100 + 1.0

• below 100 + 1.5

• below 100 + 2.0

• below 100 + 2.5

• below 100 + 3.0

• below 100 + 3.5

• below 100 + 4.0

• below 100 + 4.5

• below 100 + 5.0

• below 100 + 5.5

• below 100 + 6.0

• below 100 + 6.5

• below 100 + 7.0

• below 100 + 7.5

• below 100 + 8.0

• below 100 + 8.5

• below 100 + 9.0

• below 100 + 9.5

• below 100 + 10.0

Pie chart for pl.wiki and later for en.wiki.

PoC and some helpers: https://github.com/Eccenux/css-piechart

TODO / features:

1. ✅ basic 2-element pie chart
2. read json
3. calculate value with -1
4. generate html
5. new css + tests
6. provide dumb labels (just v%)
7. ✅ colors in json
8. ✅ 1st value >= 50%
9. ✅ custom labels support
10. ✅ pie size from 'meta' param (options json)
11. ✅ pl formatting for numbers?
12. ✅ support undefined value (instead of -1)
13. ✅ undefined in any order
14. ✅ scale values to 100% (autoscale)
15. ✅ order values clockwise (not left/right)
16. ✅ multi-cut pie
17. ✅ sanitize user values
18. ✅ auto colors
19. ✅ function to get color by number (for custom legend)
20. ✅ remember and show autoscaled data
21. ✅ generate a legend
22. ✅ simple legend positioning by (flex-)direction

Integration with :en:Template:Pie chart. Support for enumerated template parameters (i.e. value1..n, label1..n, color1..n).

Merge Talk: https://en.wikipedia.org/wiki/Wikipedia:Templates_for_discussion/Log/2025_January_30#c-Rjjiii-20250215200500-Nux-20250215163400

1. ✅Support templates in colors
2. ✅Example for PoC Template:Sandbox/Nux/enumParams/test
3. ✅Prototype/PoC Module:Sandbox/Nux
4. ✅Implement in sandbox.
5. ✅Support both JSON and enum-params.
6. ✅Proper support for other (compatibility, but without a formatting bug).
7. ✅Remove {{t|Piechart/sandbox}} call and just invoke the module directly.
8. ✅Allow passing custom meta JSON.
9. ✅Replace Template:Pie chart/sandbox for easier testing and stuff...
10. ✅Add more test cases
11. ✅Remove Template:Pie chart/sandbox2 from cases
12. ✅Side-by-side view of test cases (flex = shorter)
13. ✅Simple cases for {{{thumb}}} param
14. ✅Footer (expected not to be supported by sandbox template yet)
15. ✅Numbers that are over 100 (autoscale; expected not to be supported by current template yet)
16. ✅Re-think colors
17. ✅Support numbers over 100
18. ✅calculate sum before settings labels (sum > 100 => autoscale)
19. ✅sum > 100 => use $v in labels
20. ✅support setting $v in label1..n params
21. ✅generate meta-JSON from classic params (similar function to parseEnumParams)
22. ✅Support {{{footer}}}; used in e.g.:
23. * :en:Jharkhand#Religion
24. * :en:.br#Usage_statistics
25. * :en:New_Zealand_wine#Marlborough
26. ✅Re-integrate with plwiki.
27. ✅Finalize?
28. ✅Replace Module:Piechart code with its sandbox.
29. ✅Replace Template:Piechart code with its sandbox.
30. ✅Docs update?
31. ✅Merge
32. ✅Template:Piechart/sandbox/styles.css → Template:Piechart/styles.css ([https://en.wikipedia.org/wiki/Special:ComparePages?page1=Template%3APiechart%2Fstyles.css&rev1=&page2=Template%3APiechart%2Fsandbox%2Fstyles.css&rev2=&action=&unhide= diff])
33. ✅Template:Pie chart/sandbox → Template:Pie chart (+ Piechart/styles.css) ([https://en.wikipedia.org/wiki/Special:ComparePages?page1=Template%3APie+chart&rev1=&page2=Template%3APie+chart%2Fsandbox&rev2=&action=&unhide= diff])
34. ✅→ Template:Pie chart/styles.css ([https://en.wikipedia.org/wiki/Special:ComparePages?page1=Template%3APiechart%2Fstyles.css&rev1=&page2=Template%3APie+chart%2Fstyles.css&rev2=&action=&unhide= diff])
35. ✅Template:Pie chart (+ Pie chart/styles.css)
36. (?) ✅Redirect Template:Piechart to Template:Pie chart

1. itemTpl support (just "template" or "label-tpl" or "tpl"?)
2. add new option to meta
3. default value of the template: "$label: $auto"
4. Add support for new value:
5. $auto ($v)
6. $rawNumber ($d)
7. $formattedNumber (part of $v)
8. $percentNumber ($p)
9. shorthand support?
10. $rawNumber == $raw == $value
11. $formattedNumber == $formatted == $format
12. $percentNumber == $percent
13. Report unknown $x in template during preview.
14. Report when $x is not supported in current mode (autoscale off).
15. Docs:
16. Use longer versions in new examples.
17. Remove $v, $d, $p from docs (only keeping it for backward compatibility).
18. Check adding labels in value mode after changes... [https://en.wikipedia.org/wiki/Template_talk:Pie_chart#c-Novarupta-20250601085500-Template_adds_incorrect_percentages_to_labels Module was adding percentages to labels unexpectedly]

1. legend2: customization
2. (?) custom head
3. (?) validation of input
4. check if required values are present
5. message showing whole entry, when entry is invalid
6. pre-sanitize values?
7. sane info when JSON fails? Maybe dump JSON and show example with quotes-n-all...
8. (?) option to sort entries by value