VisActor/VChart

[Feature] support contains relation in venn chart

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#2,847 opened on Jun 24, 2024

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 (2 comments) (0 reactions) (1 assignee)TypeScript (212 forks)user submission
good first issue

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Description

What problem does this feature solve?

Support chart like this: img_v3_02c5_d35ae1d8-65d1-4f78-8e0b-616f546379hu

What does the proposed API look like?

  data: {
    values: [
      // rest value
      { sets: [], value 6 },

      { sets: ['A'], value: 8 },
      { sets: ['B'], value: 10 },
      { sets: ['C'], value: 12 },
      { sets: ['A', 'B'], value: 4 },
      { sets: ['A', 'C'], value: 4 },
      { sets: ['B', 'C'], value: 4 },
      { sets: ['A', 'B', 'C'], value: 2 }
    ]

Contributor guide

Research direction
Investigate existing Venn chart implementations in VChart or similar libraries like venn.js. Review the provided data format and design a layout algorithm to compute overlapping regions. Implement support for 'contains' relations where one set is a subset of another, ensuring correct positioning and area scaling.
Tech stack
typescript
Domain
frontend
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-2 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Mostly clear
Prerequisites
TypeScriptChart rendering concepts
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
60