mapbox / mapbox/mapbox-maps-flutter

Polyline not rendered correctly

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#675 3 comments 0 reactions 0 assignees View on GitHub

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Dominant language
Dart
Stars
380
Forks
204
PR merge metrics
No merged PRs in 30d

Description

When displaying a complex polyline it only renders correctly at higher zoom levels. At lower zoom levels, sections of the line fail to render.

Problem occurs using build 2.2.1. on physical iPhone 14 Pro, and Samsung S22. Not tested on other devices.

https://github.com/user-attachments/assets/7f638ec5-17b5-4ccf-b1ec-084552e38953

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 reproducing the complex-polyline rendering problem with build 2.2.1 at lower zoom levels on the reported iPhone 14 Pro and Samsung S22 environments. Trace the polyline rendering path to identify why sections disappear; done means the full line renders correctly at lower zoom levels.

Written by the indexing model from the issue text.

Assessment

Tech stack
dart, flutter
Domain
mobile-dev
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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