techniq / techniq/layerchart

[GeoPath] Rendering issue with simplified topojson

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#672 2 comments 1 reaction 0 assignees View on GitHub

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Dominant language
TypeScript
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Forks
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Merged PRs (30d)
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Description

Most prevalent with simplified paths, such as when using import { presimplify, simplify } from 'topojson-simplify';. REPL. Also visible on SketchyGlobe example (especially when you turn down the "Min area").

This d3 / svelte-canvas example does not have the issue (gist)

See discussion

Contributor guide

No contributing guide indexed for this repository

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start with the linked Svelte REPL and compare its simplified topojson rendering with the SketchyGlobe example, especially after lowering “Min area.” Use the linked d3/svelte-canvas example as a comparison, and consider the issue complete when simplified paths render without the reported artifacts in the reproduction cases.

Written by the indexing model from the issue text.

Assessment

Tech stack
d3js, typescript
Domain
data-visualization, frontend
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
35/100

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