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Merge branch 'master' into json-join

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Eric Fischer
2017-11-17 11:11:44 -08:00
parent 9ebeb47d24 f1c3811d97
commit b6163dd435
27 changed files with 988 additions and 208 deletions
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README.md
+6 -29
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@@ -356,33 +356,6 @@ the filename or name specified using `--layer`, like this:
}
```
Point styling
-------------
To provide a consistent density gradient as you zoom, the Mapbox Studio style needs to be
coordinated with the base zoom level and dot-dropping rate. You can use this shell script to
calculate the appropriate marker-width at high zoom levels to match the fraction of dots
that were dropped at low zoom levels.
If you used `-B` or `-z` to change the base zoom level or `-r` to change the
dot-dropping rate, replace them in the `basezoom` and `rate` below.
awk 'BEGIN {
dotsize = 2; # up to you to decide
basezoom = 14; # tippecanoe -z 14
rate = 2.5; # tippecanoe -r 2.5
print " marker-line-width: 0;";
print " marker-ignore-placement: true;";
print " marker-allow-overlap: true;";
print " marker-width: " dotsize ";";
for (i = basezoom + 1; i <= 22; i++) {
print " [zoom >= " i "] { marker-width: " (dotsize * exp(log(sqrt(rate)) * (i - basezoom))) "; }";
}
exit(0);
}'
Geometric simplifications
-------------------------
@@ -498,12 +471,16 @@ The options are:
### Tileset description and attribution
* `-l` *layer* or `--layer=`*layer*: Include the named layer in the output. You can specify multiple `-l` options to keep multiple layers. If you don't specify, they will all be retained.
* `-L` *layer* or `--exclude-layer=`*layer*: Remove the named layer from the output. You can specify multiple `-L` options to remove multiple layers.
* `-A` *attribution* or `--attribution=`*attribution*: Set the attribution string.
* `-n` *name* or `--name=`*name*: Set the tileset name.
* `-N` *description* or `--description=`*description*: Set the tileset description.
### Layer filtering and naming
* `-l` *layer* or `--layer=`*layer*: Include the named layer in the output. You can specify multiple `-l` options to keep multiple layers. If you don't specify, they will all be retained.
* `-L` *layer* or `--exclude-layer=`*layer*: Remove the named layer from the output. You can specify multiple `-L` options to remove multiple layers.
* `-R`*old*`:`*new* or `--rename-layer=`*old*`:`*new*: Rename the layer named *old* to be named *new* instead. You can specify multiple `-R` options to rename multiple layers. Renaming happens before filtering.
### Zoom levels
* `-z` _zoom_ or `--maximum-zoom=`_zoom_: Don't copy tiles from higher zoom levels than the specified zoom