VisActor/VChart

[Feature] support contains relation in venn chart

Open

#2,847 opened on Jun 24, 2024

View on GitHub
 (2 comments) (0 reactions) (1 assignee)TypeScript (1,800 stars) (212 forks)user submission
good first issue

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

Tech stack
typescript
Domain
frontenddata
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.
clear
Prerequisites
TypeScriptVChart Venn chart internalsVenn diagram concepts
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
65
Research direction
Examine the existing Venn chart implementation in VChart, likely under src/chart/venn. Understand how sets and values are currently rendered. Then implement the 'contains' relation by adding a new series type or modifying the existing Venn series to support hierarchical sets. Refer to the issue comments for any additional context.