Sankey Chart
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- Dominant language
- Dart
- Stars
- 7.6k
- Forks
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- Avg merge
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- Merged PRs (30d)
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Description
# Feature Request
I would like a Flutter widget for a [Sankey Chart](https://en.wikipedia.org/wiki/Sankey_diagram).
# Alternatives
The only Flutter native alternative I found is the [sankey_flutter package](https://pub.dev/packages/sankey_flutter), which uses the algorithm from [d3-sankey](https://github.com/d3/d3-sankey).
[community_charts_flutter](https://pub.dev/packages/community_charts_flutter) seems to at least have a [class for a Sankey chart](https://github.com/juliansteenbakker/community_charts/blob/b72135f7c2146ae7c7083e0b0e7444bb7a61464c/community_charts_common/lib/src/chart/sankey/sankey_chart.dart), but I don't think that it has been implemented yet.
# What it may look like
Screenshot from [sankey_flutter package](https://pub.dev/packages/sankey_flutter):
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Begin by comparing the referenced sankey_flutter package and d3-sankey algorithm, then review fl_chart’s existing chart widgets to determine the new widget’s API and placement. Done means a Sankey chart widget is implemented with behavior comparable to the referenced example; the issue does not specify target files or tests.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- dart, flutter
- Domain
- data-visualization
- Issue type
- Feature
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 30/100