plotly / plotly/plotly.js

Add 2D triangulation plot

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

It would be very useful for me adding a new chart type to deal with 2D triangulation (or mesh).

At the current implementation, I found different workarounds but with some limitations:

  • the heatmap graph is only for data in grid format
  • the mesh3d graph shows three dimensions and it manages also the lights, resulting for my purpose too complex (and expensive)
  • the basic scatter plot allows me to draw a single triangle, but if I try for many triangles (>10k) the function is extremely expensive.

I apologize in advance if this feature is already implemented and I missed it.

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 reviewing the existing heatmap, mesh3d, and scatter chart implementations to understand their data and rendering limitations. Define the expected 2D triangulation or mesh inputs, rendering behavior, and performance target for large numbers of triangles before proposing the new chart type.

Written by the indexing model from the issue text.

Assessment

Tech stack
javascript
Domain
data-visualization
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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