mirror of
https://github.com/felt/tippecanoe.git
synced 2026-10-02 16:35:40 +02:00
39 lines
1.1 KiB
Markdown
39 lines
1.1 KiB
Markdown
tippecanoe
|
|
==========
|
|
|
|
Build vector tilesets from large collections of GeoJSON features.
|
|
|
|
Usage
|
|
-----
|
|
|
|
tippecanoe -o file.mbtiles [file.json]
|
|
|
|
If the file is not specified, it reads GeoJSON from the standard input.
|
|
|
|
Options
|
|
-------
|
|
|
|
* -l Layer name (default "file" if source is file.json)
|
|
* -n Human-readable name (default file.json)
|
|
* -z Base zoom level (default 14)
|
|
* -Z Lowest zoom level (default 0)
|
|
* -d Detail at base zoom level (default 12, for tile resolution of 4096)
|
|
* -D Detail at lower zoom levels (default 10, for tile resolution of 1024)
|
|
|
|
Example
|
|
-------
|
|
|
|
tippecanoe -o alameda.json -l alameda -n "Alameda County from TIGER" -z12 -d14 tl_2014_06001_roads.json
|
|
|
|
Geometric simplifications
|
|
-------------------------
|
|
|
|
For point features, it drops 1/2.5 of the dots for each zoom level above the base.
|
|
|
|
For line features, it drops any features that are too small to draw at all.
|
|
This still leaves the lower zooms too dark, so I need to figure out an
|
|
equitable way to throw features away.
|
|
|
|
It also throws away any polygons that are too small to draw. I'm not sure yet
|
|
if it is appropriate to do more than that.
|