mapbox / mapbox/tippecanoe

Tiles Distortion at lower zoom Level observed

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#973 1 comment 0 reactions 0 assignees View on GitHub
Dominant language
C++
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Description

While generating pbf tiles from the tippecanoe of the following Geojson file and viewing on mapbox-gl tiles distortion(breaking) is obseved at lower zoom levels.
[100_M_BUFFER.zip](https://github.com/mapbox/tippecanoe/files/11915567/100_M_BUFFER.zip). I am using following settings in options given to tippecanoe
```let options_obj: any ={
minimumZoom: 1,
readParallel: true,
buffer: 127,
simplification: 1,
layer: layer_id,
noFeatureLimit: true,
noTileSizeLimit: true,
noTinyPolygonReduction: true,
preserveInputOrder: true,
noLineSimplification: true,
extendZoomsIfStillDropping: true,
force: true,
dropRate: 0,
};```

Contributor guide

Open the contributing guide

Research direction

Start by reproducing the distortion with the attached 100_M_BUFFER.zip and the listed tippecanoe options, then inspect the generated PBF tiles in mapbox-gl at lower zoom levels. Compare behavior while isolating the zoom, buffering, simplification, and feature-dropping settings. Done means the supplied data renders without tile breaking at lower zooms or the limitation is clearly documented.

Written by the indexing model from the issue text.

Assessment

Tech stack
cpp
Domain
cli
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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