plotly / plotly/plotly.js

enable highlight lines in Parallel Coordinate Plot

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#6,188 5 comments 6 reactions 0 assignees View on GitHub

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feature P3
Dominant language
JavaScript
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Forks
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Avg merge
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Merged PRs (30d)
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Description

I would like to request a feature where you can highlight one or more lines in the Parallel coordinate viewer which stay highlighted, even if they fall outside the brushes. The idea is to make one line wider with a contrasting color.
As an example:
Schermafbeelding 2022-05-12 155943

Contributor guide

Open the contributing guide

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 by locating the Parallel Coordinate viewer entry point and the code that applies brushes to lines. Review how line styling and brush filtering are handled, then define a way to keep selected lines visible with a contrasting, wider style even outside the brushes. Done means one or more selected lines remain highlighted while brushing continues to work.

Written by the indexing model from the issue text.

Assessment

Tech stack
javascript
Domain
data-visualization
Issue type
Feature
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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