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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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man/tippecanoe.1
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@@ -76,7 +76,7 @@ specified, the files are all merged into the single named layer.
\-Z \fIzoom\fP: Minzoom: the lowest zoom level for which tiles are generated (default 0)
.IP \(bu 2
\-B \fIzoom\fP: 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.
.IP \(bu 2
\-d \fIdetail\fP: Detail at max zoom level (default 12, for tile resolution of 4096)
.IP \(bu 2
@@ -98,7 +98,8 @@ If you use \-Bg, it will guess a zoom level that will keep less than 50,000 feat
.SS Point simplification
.RS
.IP \(bu 2
\-r \fIrate\fP: Rate at which dots are dropped at zoom levels below basezoom (default 2.5)
\-r \fIrate\fP: 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.
.IP \(bu 2
\-g \fIgamma\fP: 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.
.RE