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Scale the tile size limit up with the multiplier at low zooms (#192)

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* Scale the tile size limit up with the multiplier at low zooms

* Add a test to demonstrate that high zoom tiles can't be extra large

* Update changelog and version

* Fail more cleanly when a tile can't be made small enough

* Guard against a cluster where the start marker has been dropped

* Look harder for a working feature interval instead of giving up

* That change to the drop-smallest logic changed a test output

* Update changelog

* Add explanatory comment
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Erica Fischer
2024-01-31 10:23:05 -08:00
committed by GitHub
parent ca1aa58a11
commit 6a2bce8164
9 changed files with 22368 additions and 96 deletions
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README.md
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@@ -461,7 +461,7 @@ the same layer, enclose them in an `all` expression so they will all be evaluate
If you use `-Bg`, it will guess a zoom level that will keep at most 50,000 features in the densest tile.
You can also specify a marker-width with `-Bg`*width* to allow fewer features in the densest tile to
compensate for the larger marker, or `-Bf`*number* to allow at most *number* features in the densest tile.
* `--retain-points-multiplier=`_multiple_: Retain the specified multiple of points instead of just the number of points that would ordinarily be retained by the drop rate. These can be thinned out later with the `-m` option to `tippecanoe-overzoom`. The start of each cluster is marked in the feature sequence by the `tippecanoe:retain_points_multiplier_first` attribute.
* `--retain-points-multiplier=`_multiple_: Retain the specified multiple of points instead of just the number of points that would ordinarily be retained by the drop rate. These can be thinned out later with the `-m` option to `tippecanoe-overzoom`. The start of each cluster is marked in the feature sequence by the `tippecanoe:retain_points_multiplier_first` attribute. The `--tile-size-limit` will also be extended at low zoom levels to allow for the multiplied features.
* `--drop-denser=`_percentage_: When dropping dots at zoom levels below the base zoom, give the specified _percentage_
preference to retaining points in sparse areas and dropping points in dense areas.
* `--limit-base-zoom-to-maximum-zoom` or `-Pb`: Limit the guessed base zoom not to exceed the maxzoom, even if this would put more than the requested number of features in a base zoom tile.