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Add an option to guess the drop rate

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Eric Fischer
2015-12-16 12:13:24 -08:00
parent eb906dfc72
commit 6681817243
3 changed files with 43 additions and 15 deletions
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README.md
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@@ -69,7 +69,7 @@ Options
* -z _zoom_: Maxzoom: the highest zoom level for which tiles are generated (default 14)
* -Z _zoom_: Minzoom: the lowest zoom level for which tiles are generated (default 0)
* -B _zoom_: Base zoom, the level at and above which all points are included in the tiles (default maxzoom).
If you use -Bg, it will guess a zoom level that will keep less than 50,000 features in the densest tile.
If you use -Bg, it will guess a zoom level that will keep at most 50,000 features in the densest tile.
* -d _detail_: Detail at max zoom level (default 12, for tile resolution of 4096)
* -D _detail_: Detail at lower zoom levels (default 12, for tile resolution of 4096)
* -m _detail_: Minimum detail that it will try if tiles are too big at regular detail (default 7)
@@ -83,7 +83,8 @@ Options
### Point simplification
* -r _rate_: Rate at which dots are dropped at zoom levels below basezoom (default 2.5)
* -r _rate_: Rate at which dots are dropped at zoom levels below basezoom (default 2.5).
If you use -rg, it will guess a drop rate that will keep at most 50,000 features in the densest tile.
* -g _gamma_: Rate at which especially dense dots are dropped (default 0, for no effect). A gamma of 2 reduces the number of dots less than a pixel apart to the square root of their original number.
### Doing more