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contour line

curve joining points with equal value on a 2D graphic representation
Thing general Q6653802
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Summary

contour line ranks in the top 2% of general entities by monthly Wikipedia readership (2,611 views/month).[1]

Key Facts

  • Subclass of: curve[2], plot[3], level set[4], line[5]
  • Has use: union[6], cartography[7]
  • Commons category: Contour lines[8]
  • Topic's main category: Category:Contour lines[9]
  • Described at URL: https://phrontistery.info/contour.html[10]
  • Described by source: Sytin Military Encyclopedia[11], Encyclopædia Britannica 11th edition[12], The New Student's Reference Work[13], Armenian Soviet Encyclopedia, vol. 4[14]
  • Stack Exchange tag: https://stackoverflow.com/tags/contour[15]
  • Native label: ἴσογράμμα[16]
  • Different from: contour line[17]
  • Studied by: geology[18], climatology[19], topography[20]
  • On focus list of Wikimedia project: Wikipedia:Vital articles/Level/4[21]

Why It Matters

contour line has Wikipedia articles in 23 language editions, a strong signal of global cultural recognition.[22] It is known by 52 alternative names across languages and contexts.[23]

Related Entities

climatology geology Plotly topography

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [2] ↑ . wikidata.org.
  2. [3] ↑ . wikidata.org.
  3. [4] ↑ . wikidata.org.
  4. [5] ↑ . wikidata.org.
  5. [6] ↑ . wikidata.org.
  6. [7] ↑ . wikidata.org.
  7. [8] ↑ . wikidata.org.
  8. [9] ↑ . wikidata.org.
  9. [10] ↑ . wikidata.org.
  10. [11] ↑ . wikidata.org.
  11. [12] ↑ . wikidata.org.
  12. [13] ↑ . wikidata.org.
  13. [14] ↑ . wikidata.org.
  14. [15] ↑ . wikidata.org.
  15. [16] ↑ . wikidata.org.
  16. [17] ↑ . wikidata.org.
  17. [18] ↑ . wikidata.org.
  18. [19] ↑ . wikidata.org.
  19. [20] ↑ . wikidata.org.
  20. [21] ↑ . wikidata.org.

Aggregate / graph-position facts

  1. [1] ↑ . Wikimedia Foundation. dumps.wikimedia.org.
  2. [22] ↑ . Wikidata sitelinks. wikidata.org.
  3. [23] ↑ . Wikidata aliases. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). contour line. Retrieved October 16, 2026, from https://4ort.xyz/entity/contour-line
MLA “contour line.” 4ort.xyz Knowledge Graph, 4ort.xyz, 16 Oct. 2026, https://4ort.xyz/entity/contour-line.
BibTeX @misc{4ortxyz_contour-line_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{contour line}}, year = {2026}, url = {https://4ort.xyz/entity/contour-line}, note = {Accessed: 2026-10-16}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): contour line — https://4ort.xyz/entity/contour-line (retrieved 2026-10-16)

Canonical URL: https://4ort.xyz/entity/contour-line · Last refreshed:

Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

  1. 5d ago · MatSuBot bot · 2026-10-13 view diff on Wikidata ↗
    Sitelink count → 61
    Wikipedia languages → ['ar', 'ast', 'az', 'ba', 'be', 'be_x_old', 'bg', 'bn', 'ca', 'cs', 'de', 'en',
    Claims rich → —
    "/* wbeditentity-update-languages-short:0||th, fr */ import labels from sitelinks; cleanup"
  2. 20w ago · Twofivesixbot bot · 2026-05-30 view diff on Wikidata ↗
    Aliases → —
    Topic's main category → Category:Contour lines
    Different from → contour line
    Has use → union, cartography
    + 5 other properties edited (see Wikidata diff for full list)
    "/* wbsetclaim-update-qualifiers:1||1|12 */ National library of israel j9u id: 987007557831305171, mv to monolingual text names on J9U statements"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.