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Also remove the point styling script since CartoCSS is long deprecated
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README.md
27
README.md
@ -356,33 +356,6 @@ the filename or name specified using `--layer`, like this:
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}
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```
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Point styling
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-------------
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To provide a consistent density gradient as you zoom, the Mapbox Studio style needs to be
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coordinated with the base zoom level and dot-dropping rate. You can use this shell script to
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calculate the appropriate marker-width at high zoom levels to match the fraction of dots
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that were dropped at low zoom levels.
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If you used `-B` or `-z` to change the base zoom level or `-r` to change the
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dot-dropping rate, replace them in the `basezoom` and `rate` below.
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awk 'BEGIN {
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dotsize = 2; # up to you to decide
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basezoom = 14; # tippecanoe -z 14
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rate = 2.5; # tippecanoe -r 2.5
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print " marker-line-width: 0;";
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print " marker-ignore-placement: true;";
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print " marker-allow-overlap: true;";
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print " marker-width: " dotsize ";";
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for (i = basezoom + 1; i <= 22; i++) {
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print " [zoom >= " i "] { marker-width: " (dotsize * exp(log(sqrt(rate)) * (i - basezoom))) "; }";
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}
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exit(0);
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}'
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Geometric simplifications
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-------------------------
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@ -427,35 +427,6 @@ the filename or name specified using \fB\fC\-\-layer\fR, like this:
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}
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.fi
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.RE
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.SH Point styling
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.PP
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To provide a consistent density gradient as you zoom, the Mapbox Studio style needs to be
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coordinated with the base zoom level and dot\-dropping rate. You can use this shell script to
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calculate the appropriate marker\-width at high zoom levels to match the fraction of dots
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that were dropped at low zoom levels.
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.PP
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If you used \fB\fC\-B\fR or \fB\fC\-z\fR to change the base zoom level or \fB\fC\-r\fR to change the
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dot\-dropping rate, replace them in the \fB\fCbasezoom\fR and \fB\fCrate\fR below.
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.PP
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.RS
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.nf
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awk 'BEGIN {
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dotsize = 2; # up to you to decide
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basezoom = 14; # tippecanoe \-z 14
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rate = 2.5; # tippecanoe \-r 2.5
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print " marker\-line\-width: 0;";
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print " marker\-ignore\-placement: true;";
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print " marker\-allow\-overlap: true;";
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print " marker\-width: " dotsize ";";
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for (i = basezoom + 1; i <= 22; i++) {
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print " [zoom >= " i "] { marker\-width: " (dotsize * exp(log(sqrt(rate)) * (i \- basezoom))) "; }";
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}
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exit(0);
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}'
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.fi
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.RE
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.SH Geometric simplifications
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.PP
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At every zoom level, line and polygon features are subjected to Douglas\-Peucker
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