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Add a table of zoom level precisions to the documentation

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Eric Fischer
2018-12-11 17:52:51 -08:00
parent ca4aad0c64
commit 5f1c0e151f
2 changed files with 65 additions and 0 deletions
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man/tippecanoe.1
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@@ -385,6 +385,48 @@ specified maximum zoom and to any levels added beyond that.
\fB\fC\-R\fR \fIzoom\fP\fB\fC/\fR\fIx\fP\fB\fC/\fR\fIy\fP or \fB\fC\-\-one\-tile=\fR\fIzoom\fP\fB\fC/\fR\fIx\fP\fB\fC/\fR\fIy\fP: Set the minzoom and maxzoom to \fIzoom\fP and produce only
the single specified tile at that zoom level.
.RE
.PP
If you know the precision to which you want your data to be represented,
this table shows the approximate precision corresponding to various
\fB\fC\-z\fR options\fB\fCif you use the default\fR\-d` detail of 12:
.TS
allbox;
cb cb cb
l l l
l l l
l l l
l l l
l l l
l l l
l l l
l l l
l l l
l l l
l l l
l l l
l l l
l l l
l l l
l l l
.
zoom level precision (ft) precision (m)
\fB\fC\-z0\fR 32000 ft 10000 m
\fB\fC\-z1\fR 16000 ft 5000 m
\fB\fC\-z2\fR 8000 ft 2500 m
\fB\fC\-z3\fR 4000 ft 1250 m
\fB\fC\-z4\fR 2000 ft 600 m
\fB\fC\-z5\fR 1000 ft 300 m
\fB\fC\-z6\fR 500 ft 150 m
\fB\fC\-z7\fR 250 ft 80 m
\fB\fC\-z8\fR 125 ft 40 m
\fB\fC\-z9\fR 64 ft 20 m
\fB\fC\-z10\fR 32 ft 10 m
\fB\fC\-z11\fR 16 ft 5 m
\fB\fC\-z12\fR 8 ft 2 m
\fB\fC\-z13\fR 4 ft 1 m
\fB\fC\-z14\fR 2 ft 0.5 m
\fB\fC\-z15\fR 1 ft 0.25 m
.TE
.SS Tile resolution
.RS
.IP \(bu 2