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Eric Fischer 2019-04-08 16:33:11 -07:00
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@ -781,6 +781,14 @@ the filename or name specified using \fB\fC\-\-layer\fR, like this:
}
.fi
.RE
.PP
If your source GeoJSON only has \fB\fCminzoom\fR, \fB\fCmaxzoom\fR and/or \fB\fClayer\fR within \fB\fCproperties\fR you can use ndjson\-cli \[la]https://github.com/mbostock/ndjson-cli/blob/master/README.md\[ra] to move them into the required \fB\fCtippecanoe\fR object by piping the GeoJSON like this:
.PP
.RS
.nf
ndjson\-map 'd.tippecanoe = { minzoom: d.properties.minzoom, maxzoom: d.properties.maxzoom, layer: d.properties.layer }, delete d.properties.minzoom, delete d.properties.maxzoom, delete d.properties.layer, d'
.fi
.RE
.SH Geometric simplifications
.PP
At every zoom level, line and polygon features are subjected to Douglas\-Peucker