Provided by: tippecanoe_2.53.0-1_amd64 
Intent
The goal of Tippecanoe is to enable making a scale-independent view of your data, so that
at any level from the entire world to a single building, you can see the density and
texture of the data rather than a simplification from dropping supposedly unimportant
features or clustering or aggregating them.
If you give it all of OpenStreetMap and zoom out, it should give you back something that
looks like "All Streets ⟨http://benfry.com/allstreets/map5.html⟩" rather than something
that looks like an Interstate road atlas.
If you give it all the building footprints in Los Angeles and zoom out far enough that
most individual buildings are no longer discernable, you should still be able to see the
extent and variety of development in every neighborhood, not just the largest downtown
buildings.
If you give it a collection of years of tweet locations, you should be able to see the
shape and relative popularity of every point of interest and every significant travel
corridor.
Installation
The easiest way to install tippecanoe on OSX is with Homebrew ⟨http://brew.sh/⟩:
$ brew install tippecanoe
On Ubuntu it will usually be easiest to build from the source repository:
$ git clone https://github.com/felt/tippecanoe.git
$ cd tippecanoe
$ make -j
$ make install
See Development ⟨#development⟩ below for how to upgrade your C++ compiler or install
prerequisite packages if you get compiler errors.
Usage
$ tippecanoe -o file.mbtiles [options] [file.json file.json.gz file.fgb ...]
If no files are specified, it reads GeoJSON from the standard input. If multiple files
are specified, each is placed in its own layer ⟨#input-files-and-layer-names⟩.
The GeoJSON features need not be wrapped in a FeatureCollection. You can concatenate
multiple GeoJSON features or files together, and it will parse out the features and ignore
whatever other objects it encounters.
Try this first
If you aren't sure what options to use, try this:
$ tippecanoe -zg -o out.mbtiles --drop-densest-as-needed in.geojson
The -zg option will make Tippecanoe choose a maximum zoom level that should be high enough
to reflect the precision of the original data. (If it turns out still not to be as
detailed as you want, use -z manually with a higher number.)
If the tiles come out too big, the --drop-densest-as-needed option will make Tippecanoe
try dropping what should be the least visible features at each zoom level. (If it drops
too many features, use -x to leave out some feature attributes that you didn't really
need.)
Examples
Create a tileset of TIGER roads for Alameda County, to zoom level 13, with a custom layer
name and description:
$ tippecanoe -o alameda.mbtiles -l alameda -n "Alameda County from TIGER" -z13 tl_2014_06001_roads.json
Create a tileset of all TIGER roads, at only zoom level 12, but with higher detail than
normal, with a custom layer name and description, and leaving out the LINEARID and RTTYP
attributes:
$ cat tiger/tl_2014_*_roads.json | tippecanoe -o tiger.mbtiles -l roads -n "All TIGER roads, one zoom" -z12 -Z12 -d14 -x LINEARID -x RTTYP
Cookbook
Linear features (world railroads), visible at all zoom levels
curl -L -O https://www.naturalearthdata.com/http//www.naturalearthdata.com/download/10m/cultural/ne_10m_railroads.zip
unzip ne_10m_railroads.zip
ogr2ogr -f GeoJSON ne_10m_railroads.geojson ne_10m_railroads.shp
tippecanoe -zg -o ne_10m_railroads.mbtiles --drop-densest-as-needed --extend-zooms-if-still-dropping ne_10m_railroads.geojson
• -zg: Automatically choose a maxzoom that should be sufficient to clearly
distinguish the features and the detail within each feature
• --drop-densest-as-needed: If the tiles are too big at low zoom levels, drop the
least-visible features to allow tiles to be created with those features that
remain
• --extend-zooms-if-still-dropping: If even the tiles at high zoom levels are too
big, keep adding zoom levels until one is reached that can represent all the
features
Discontinuous polygon features (buildings of Rhode Island), visible at all zoom levels
curl -L -O https://usbuildingdata.blob.core.windows.net/usbuildings-v1-1/RhodeIsland.zip
unzip RhodeIsland.zip
tippecanoe -zg -o RhodeIsland.mbtiles --drop-densest-as-needed --extend-zooms-if-still-dropping RhodeIsland.geojson
• -zg: Automatically choose a maxzoom that should be sufficient to clearly
distinguish the features and the detail within each feature
• --drop-densest-as-needed: If the tiles are too big at low or medium zoom levels,
drop the least-visible features to allow tiles to be created with those features
that remain
• --extend-zooms-if-still-dropping: If even the tiles at high zoom levels are too
big, keep adding zoom levels until one is reached that can represent all the
features
Continuous polygon features (states and provinces), visible at all zoom levels
curl -L -O https://www.naturalearthdata.com/http//www.naturalearthdata.com/download/10m/cultural/ne_10m_admin_1_states_provinces.zip
unzip -o ne_10m_admin_1_states_provinces.zip
ogr2ogr -f GeoJSON ne_10m_admin_1_states_provinces.geojson ne_10m_admin_1_states_provinces.shp
tippecanoe -zg -o ne_10m_admin_1_states_provinces.mbtiles --coalesce-densest-as-needed --extend-zooms-if-still-dropping ne_10m_admin_1_states_provinces.geojson
• -zg: Automatically choose a maxzoom that should be sufficient to clearly
distinguish the features and the detail within each feature
• --coalesce-densest-as-needed: If the tiles are too big at low or medium zoom
levels, merge as many features together as are necessary to allow tiles to be
created with those features that are still distinguished
• --extend-zooms-if-still-dropping: If even the tiles at high zoom levels are too
big, keep adding zoom levels until one is reached that can represent all the
features
Large point dataset (GPS bus locations), for visualization at all zoom levels
curl -L -O ftp://avl-data.sfmta.com/avl_data/avl_raw/sfmtaAVLRawData01012013.csv
sed 's/PREDICTABLE.*/PREDICTABLE/' sfmtaAVLRawData01012013.csv > sfmta.csv
tippecanoe -zg -o sfmta.mbtiles --drop-densest-as-needed --extend-zooms-if-still-dropping sfmta.csv
(The sed line is to clean the corrupt CSV header, which contains the wrong number of
fields.)
• -zg: Automatically choose a maxzoom that should be sufficient to clearly
distinguish the features and the detail within each feature
• --drop-densest-as-needed: If the tiles are too big at low or medium zoom levels,
drop the least-visible features to allow tiles to be created with those features
that remain
• --extend-zooms-if-still-dropping: If even the tiles at high zoom levels are too
big, keep adding zoom levels until one is reached that can represent all the
features
Clustered points (world cities), summing the clustered population, visible at all zoom levels
curl -L -O https://www.naturalearthdata.com/http//www.naturalearthdata.com/download/10m/cultural/ne_10m_populated_places.zip
unzip -o ne_10m_populated_places.zip
ogr2ogr -f GeoJSON ne_10m_populated_places.geojson ne_10m_populated_places.shp
tippecanoe -zg -o ne_10m_populated_places.mbtiles -r1 --cluster-distance=10 --accumulate-attribute=POP_MAX:sum ne_10m_populated_places.geojson
• -zg: Automatically choose a maxzoom that should be sufficient to clearly
distinguish the features and the detail within each feature
• -r1: Do not automatically drop a fraction of points at low zoom levels, since
clustering will be used instead
• --cluster-distance=10: Cluster together features that are closer than about 10
pixels from each other
• --accumulate-attribute=POP_MAX:sum: Sum the POP_MAX (population) attribute in
features that are clustered together. Other attributes will be arbitrarily taken
from the first feature in the cluster.
Show countries at low zoom levels but states at higher zoom levels
curl -L -O https://www.naturalearthdata.com/http//www.naturalearthdata.com/download/10m/cultural/ne_10m_admin_0_countries.zip
unzip ne_10m_admin_0_countries.zip
ogr2ogr -f GeoJSON ne_10m_admin_0_countries.geojson ne_10m_admin_0_countries.shp
curl -L -O https://www.naturalearthdata.com/http//www.naturalearthdata.com/download/10m/cultural/ne_10m_admin_1_states_provinces.zip
unzip -o ne_10m_admin_1_states_provinces.zip
ogr2ogr -f GeoJSON ne_10m_admin_1_states_provinces.geojson ne_10m_admin_1_states_provinces.shp
tippecanoe -z3 -o countries-z3.mbtiles --coalesce-densest-as-needed ne_10m_admin_0_countries.geojson
tippecanoe -zg -Z4 -o states-Z4.mbtiles --coalesce-densest-as-needed --extend-zooms-if-still-dropping ne_10m_admin_1_states_provinces.geojson
tile-join -o states-countries.mbtiles countries-z3.mbtiles states-Z4.mbtiles
Countries:
• -z3: Only generate zoom levels 0 through 3
• --coalesce-densest-as-needed: If the tiles are too big at low or medium zoom
levels, merge as many features together as are necessary to allow tiles to be
created with those features that are still distinguished
States and Provinces:
• -Z4: Only generate zoom levels 4 and beyond
• -zg: Automatically choose a maxzoom that should be sufficient to clearly
distinguish the features and the detail within each feature
• --coalesce-densest-as-needed: If the tiles are too big at low or medium zoom
levels, merge as many features together as are necessary to allow tiles to be
created with those features that are still distinguished
• --extend-zooms-if-still-dropping: If even the tiles at high zoom levels are too
big, keep adding zoom levels until one is reached that can represent all the
features
Represent multiple sources (Illinois and Indiana counties) as separate layers
curl -L -O https://www2.census.gov/geo/tiger/TIGER2010/COUNTY/2010/tl_2010_17_county10.zip
unzip tl_2010_17_county10.zip
ogr2ogr -f GeoJSON tl_2010_17_county10.geojson tl_2010_17_county10.shp
curl -L -O https://www2.census.gov/geo/tiger/TIGER2010/COUNTY/2010/tl_2010_18_county10.zip
unzip tl_2010_18_county10.zip
ogr2ogr -f GeoJSON tl_2010_18_county10.geojson tl_2010_18_county10.shp
tippecanoe -zg -o counties-separate.mbtiles --coalesce-densest-as-needed --extend-zooms-if-still-dropping tl_2010_17_county10.geojson tl_2010_18_county10.geojson
• -zg: Automatically choose a maxzoom that should be sufficient to clearly
distinguish the features and the detail within each feature
• --coalesce-densest-as-needed: If the tiles are too big at low or medium zoom
levels, merge as many features together as are necessary to allow tiles to be
created with those features that are still distinguished
• --extend-zooms-if-still-dropping: If even the tiles at high zoom levels are too
big, keep adding zoom levels until one is reached that can represent all the
features
Merge multiple sources (Illinois and Indiana counties) into the same layer
curl -L -O https://www2.census.gov/geo/tiger/TIGER2010/COUNTY/2010/tl_2010_17_county10.zip
unzip tl_2010_17_county10.zip
ogr2ogr -f GeoJSON tl_2010_17_county10.geojson tl_2010_17_county10.shp
curl -L -O https://www2.census.gov/geo/tiger/TIGER2010/COUNTY/2010/tl_2010_18_county10.zip
unzip tl_2010_18_county10.zip
ogr2ogr -f GeoJSON tl_2010_18_county10.geojson tl_2010_18_county10.shp
tippecanoe -zg -o counties-merged.mbtiles -l counties --coalesce-densest-as-needed --extend-zooms-if-still-dropping tl_2010_17_county10.geojson tl_2010_18_county10.geojson
As above, but
• -l counties: Specify the layer name instead of letting it be derived from the
source file names
Selectively remove and replace features (Census tracts) to update a tileset
# Retrieve and tile California 2000 Census tracts
curl -L -O https://www2.census.gov/geo/tiger/TIGER2010/TRACT/2000/tl_2010_06_tract00.zip
unzip tl_2010_06_tract00.zip
ogr2ogr -f GeoJSON tl_2010_06_tract00.shp.json tl_2010_06_tract00.shp
tippecanoe -z11 -o tracts.mbtiles -l tracts tl_2010_06_tract00.shp.json
# Create a copy of the tileset, minus Alameda County (FIPS code 001)
tile-join -j '{"*":["none",["==","COUNTYFP00","001"]]}' -f -o tracts-filtered.mbtiles tracts.mbtiles
# Retrieve and tile Alameda County Census tracts for 2010
curl -L -O https://www2.census.gov/geo/tiger/TIGER2010/TRACT/2010/tl_2010_06001_tract10.zip
unzip tl_2010_06001_tract10.zip
ogr2ogr -f GeoJSON tl_2010_06001_tract10.shp.json tl_2010_06001_tract10.shp
tippecanoe -z11 -o tracts-added.mbtiles -l tracts tl_2010_06001_tract10.shp.json
# Merge the filtered tileset and the tileset of new tracts into a final tileset
tile-join -o tracts-final.mbtiles tracts-filtered.mbtiles tracts-added.mbtiles
The -z11 option explicitly specifies the maxzoom, to make sure both the old and new
tilesets have the same zoom range.
The -j option to tile-join specifies a filter, so that only the desired features will be
copied to the new tileset. This filter excludes (using none) any features whose FIPS code
(COUNTYFP00) is the code for Alameda County (001).
Options
There are a lot of options. A lot of the time you won't want to use any of them other than
-o output.mbtiles to name the output file, and probably -f to delete the file that already
exists with that name.
If you aren't sure what the right maxzoom is for your data, -zg will guess one for you
based on the density of features.
Tippecanoe will normally drop a fraction of point features at zooms below the maxzoom, to
keep the low-zoom tiles from getting too big. If you have a smaller data set where all the
points would fit without dropping any of them, use -r1 to keep them all. If you do want
point dropping, but you still want the tiles to be denser than -zg thinks they should be,
use -B to set a basezoom lower than the maxzoom.
If some of your tiles are coming out too big in spite of the settings above, you will
often want to use --drop-densest-as-needed to drop whatever fraction of the features is
necessary at each zoom level to make that zoom level's tiles work.
If your features have a lot of attributes, use -y to keep only the ones you really need.
If your input is formatted as newline-delimited GeoJSON, use -P to make input parsing a
lot faster.
Output tileset
• -o file.mbtiles, file.pmtiles or --output=file.mbtiles: Name the output file.
• -e directory or --output-to-directory=directory: Write tiles to the specified
directory instead of to an mbtiles file.
• -f or --force: Delete the mbtiles file if it already exists instead of giving an
error
• -F or --allow-existing: Proceed (without deleting existing data) if the metadata
or tiles table already exists or if metadata fields can't be set. You probably
don't want to use this.
Tileset description and attribution
• -n name or --name=name: Human-readable name for the tileset (default file.json)
• -A text or --attribution=text: Attribution (HTML) to be shown with maps that use
data from this tileset.
• -N description or --description=description: Description for the tileset (default
file.mbtiles)
Input files and layer names
• name.json or name.geojson: Read the named GeoJSON input file into a layer called
name.
• name.json.gz or name.geojson.gz: Read the named gzipped GeoJSON input file into a
layer called name.
• name.fgb: Read the named FlatGeobuf input file into a layer called name.
• name.csv: Read the named CSV input file into a layer called name.
• -l name or --layer=name: Use the specified layer name instead of deriving a name
from the input filename or output tileset. If there are multiple input files
specified, the files are all merged into the single named layer, even if they try
to specify individual names with -L.
• -L name:file.json or --named-layer=name:file.json: Specify layer names for
individual files. If your shell supports it, you can use a subshell redirect like
-L name:<(cat dir/*.json) to specify a layer name for the output of streamed
input.
• -L{layer-json} or --named-layer={layer-json}: Specify an input file and layer
options by a JSON object. The JSON object must contain a "file" key to specify
the filename to read from. (If the "file" key is an empty string, it means to
read from the standard input stream.) It may also contain a "layer" field to
specify the name of the layer, and/or a "description" field to specify the
layer's description in the tileset metadata, and/or a "format" field to specify
csv or fgb file format if it is not obvious from the name. Example:
tippecanoe -z5 -o world.mbtiles -L'{"file":"ne_10m_admin_0_countries.json", "layer":"countries", "description":"Natural Earth countries"}'
CSV input files currently support only Point geometries, from columns named latitude,
longitude, lat, lon, long, lng, x, or y.
Parallel processing of input
• -P or --read-parallel: Use multiple threads to read different parts of each
GeoJSON input file at once. This will only work if the input is line-delimited
JSON with each Feature on its own line, because it knows nothing of the top-level
structure around the Features. Spurious "EOF" error messages may result
otherwise. Performance will be better if the input is a named file that can be
mapped into memory rather than a stream that can only be read sequentially.
If the input file begins with the RFC 8142 ⟨https://tools.ietf.org/html/rfc8142⟩ record
separator, parallel processing of input will be invoked automatically, splitting at record
separators rather than at all newlines.
Parallel processing will also be automatic if the input file is in FlatGeobuf format.
Projection of input
• -s projection or --projection=projection: Specify the projection of the input
data. Currently supported are EPSG:4326 (WGS84, the default) and EPSG:3857 (Web
Mercator). In general you should use WGS84 for your input files if at all
possible.
Zoom levels
• -z zoom or --maximum-zoom=zoom: Maxzoom: the highest zoom level for which tiles
are generated (default 14)
• -zg or --maximum-zoom=g: Guess what is probably a reasonable maxzoom based on the
spacing of features.
• --smallest-maximum-zoom-guess=zoom: Guess what is probably a reasonable maxzoom
based on the spacing of features, but using the specified zoom if a lower maxzoom
is guessed. If -Bg is also set, the base zoom will be set to the guessed maxzoom,
with all the points carried forward into additional zooms through the one
specified.
• -Z zoom or --minimum-zoom=zoom: Minzoom: the lowest zoom level for which tiles
are generated (default 0)
• -ae or --extend-zooms-if-still-dropping: Increase the maxzoom if features are
still being dropped at that zoom level. The detail and simplification options
that ordinarily apply only to the maximum zoom level will apply both to the
originally specified maximum zoom and to any levels added beyond that.
• --extend-zooms-if-still-dropping-maximum=count: Increase the maxzoom if features
are still being dropped at that zoom level by up to count zoom levels.
• -R zoom/x/y or --one-tile=zoom/x/y: Set the minzoom and maxzoom to zoom and
produce only the single specified tile at that zoom level.
If you know the precision to which you want your data to be represented, or the map scale
of a corresponding printed map, this table shows the approximate precision and scale
corresponding to various -z options if you use the default -d detail of 12:
┌───────────┬────────────────┬───────────────┬───────────────┐
│zoom level │ precision (ft) │ precision (m) │ map scale │
├───────────┼────────────────┼───────────────┼───────────────┤
│-z0 │ 32000 ft │ 10000 m │ 1:320,000,000 │
├───────────┼────────────────┼───────────────┼───────────────┤
│-z1 │ 16000 ft │ 5000 m │ 1:160,000,000 │
├───────────┼────────────────┼───────────────┼───────────────┤
│-z2 │ 8000 ft │ 2500 m │ 1:80,000,000 │
├───────────┼────────────────┼───────────────┼───────────────┤
│-z3 │ 4000 ft │ 1250 m │ 1:40,000,000 │
├───────────┼────────────────┼───────────────┼───────────────┤
│-z4 │ 2000 ft │ 600 m │ 1:20,000,000 │
├───────────┼────────────────┼───────────────┼───────────────┤
│-z5 │ 1000 ft │ 300 m │ 1:10,000,000 │
├───────────┼────────────────┼───────────────┼───────────────┤
│-z6 │ 500 ft │ 150 m │ 1:5,000,000 │
├───────────┼────────────────┼───────────────┼───────────────┤
│-z7 │ 250 ft │ 80 m │ 1:2,500,000 │
├───────────┼────────────────┼───────────────┼───────────────┤
│-z8 │ 125 ft │ 40 m │ 1:1,250,000 │
├───────────┼────────────────┼───────────────┼───────────────┤
│-z9 │ 64 ft │ 20 m │ 1:640,000 │
├───────────┼────────────────┼───────────────┼───────────────┤
│-z10 │ 32 ft │ 10 m │ 1:320,000 │
├───────────┼────────────────┼───────────────┼───────────────┤
│-z11 │ 16 ft │ 5 m │ 1:160,000 │
├───────────┼────────────────┼───────────────┼───────────────┤
│-z12 │ 8 ft │ 2 m │ 1:80,000 │
├───────────┼────────────────┼───────────────┼───────────────┤
│-z13 │ 4 ft │ 1 m │ 1:40,000 │
├───────────┼────────────────┼───────────────┼───────────────┤
│-z14 │ 2 ft │ 0.5 m │ 1:20,000 │
├───────────┼────────────────┼───────────────┼───────────────┤
│-z15 │ 1 ft │ 0.25 m │ 1:10,000 │
├───────────┼────────────────┼───────────────┼───────────────┤
│-z16 │ 6 in │ 15 cm │ 1:5000 │
├───────────┼────────────────┼───────────────┼───────────────┤
│-z17 │ 3 in │ 8 cm │ 1:2500 │
├───────────┼────────────────┼───────────────┼───────────────┤
│-z18 │ 1.5 in │ 4 cm │ 1:1250 │
├───────────┼────────────────┼───────────────┼───────────────┤
│-z19 │ 0.8 in │ 2 cm │ 1:600 │
├───────────┼────────────────┼───────────────┼───────────────┤
│-z20 │ 0.4 in │ 1 cm │ 1:300 │
├───────────┼────────────────┼───────────────┼───────────────┤
│-z21 │ 0.2 in │ 0.5 cm │ 1:150 │
├───────────┼────────────────┼───────────────┼───────────────┤
│-z22 │ 0.1 in │ 0.25 cm │ 1:75 │
└───────────┴────────────────┴───────────────┴───────────────┘
Tile resolution
• -d detail or --full-detail=detail: Detail at max zoom level (default 12, for tile
resolution of 2
• -D detail or --low-detail=detail: Detail at lower zoom levels (default 12, for
tile resolution of 2
• -m detail or --minimum-detail=detail: Minimum detail that it will try if tiles
are too big at regular detail (default 7)
• --extra-detail=detail: Generate tiles with even more detail than the "full"
detail at the max zoom level, to maximize location precision. These tiles may not
work with some rendering software that internally limits detail to 12 or 13. The
extra detail does not affect the choice of maxzoom guessing, the amount of
simplification, or the "tiny polygon" threshold as --full-detail does. The tiles
should look the same as they did without it, except that they will be more
precise when overzoomed.
All internal math is done in terms of a 32-bit tile coordinate system, so 1/(2 of the size
of Earth, or about 1cm, is the smallest distinguishable distance. If maxzoom + detail >
32, no additional resolution is obtained than by using a smaller maxzoom or detail, and
the detail of tiles will be reduced to the maximum that can be used with the specified
maxzoom.
Filtering feature attributes
• -x name or --exclude=name: Exclude the named attributes from all features. You
can specify multiple -x options to exclude several attributes. (Don't
comma-separate names within a single -x.)
• -y name or --include=name: Include the named attributes in all features,
excluding all those not explicitly named. You can specify multiple -y options to
explicitly include several attributes. (Don't comma-separate names within a
single -y.)
• -X or --exclude-all: Exclude all attributes and encode only geometries
Modifying feature attributes
• -Tattribute:type or --attribute-type=attribute:type: Coerce the named feature
attribute to be of the specified type. The type may be string, float, int, or
bool. If the type is bool, then original attributes of 0 (or, if numeric, 0.0,
etc.), false, null, or the empty string become false, and otherwise become true.
If the type is float or int and the original attribute was non-numeric, it
becomes 0. If the type is int and the original attribute was floating-point, it
is rounded to the nearest integer.
• -Yattribute:description or --attribute-description=attribute:description: Set the
description for the specified attribute in the tileset metadata to description
instead of the usual String, Number, or Boolean.
• -Eattribute:operation or --accumulate-attribute=attribute:operation: Preserve the
named attribute from features that are dropped, coalesced-as-needed, or
clustered. The operation may be sum, product, mean, max, min, concat, or comma to
specify how the named attribute is accumulated onto the attribute of the same
name in a feature that does survive. The attributes and operations may also be
specified as JSON keys and values: --accumulate-attribute='{"attr": "operation",
"attr2", "operation2"}'.
• --set-attribute attribute:value: Set the value of the specified attribute in each
feature to the specified value. This is mostly useful to give an attribute in
each feature an initial value for --accumulate-attribute. The attributes and
values may also be specified as JSON keys and values: --set-attribute='{"attr":
value, "attr2", value}'.
• -pe or --empty-csv-columns-are-null: Treat empty CSV columns as nulls rather than
as empty strings.
• -aI or --convert-stringified-ids-to-numbers: If a feature ID is the string
representation of a number, convert it to a plain number to use as the feature
ID.
• --use-attribute-for-id=name: Use the attribute with the specified name as if it
were specified as the feature ID. (If this attribute is a stringified number, you
must also use -aI to convert it to a number.)
• -pN or --single-precision: Write double-precision numeric attribute values to
tiles as single-precision to reduce tile size.
Filtering features by attributes
• -j filter or --feature-filter=filter: Check features against a per-layer filter
(as defined in the Mapbox GL Style Specification ⟨https://docs.mapbox.com/mapbox-
gl-js/style-spec/#other-filter⟩ or in a Felt filter specification still to be
finalized) and only include those that match. Any features in layers that have no
filter specified will be passed through. Filters for the layer "*" apply to all
layers. The special variable $zoom refers to the current zoom level.
• -J filter-file or --feature-filter-file=filter-file: Like -j, but read the filter
from a file.
Example: to find the Natural Earth countries with low scalerank but high LABELRANK:
tippecanoe -z5 -o filtered.mbtiles -j '{ "ne_10m_admin_0_countries": [ "all", [ "<", "scalerank", 3 ], [ ">", "LABELRANK", 5 ] ] }' ne_10m_admin_0_countries.geojson
Example: to retain only major TIGER roads at low zoom levels:
tippecanoe -o roads.mbtiles -j '{ "*": [ "any", [ ">=", "$zoom", 11 ], [ "in", "MTFCC", "S1100", "S1200" ] ] }' tl_2015_06001_roads.json
Tippecanoe also accepts expressions of the form [ "attribute-filter", name, expression ],
to filter individual feature attributes instead of entire features. For example, you can
exclude the road names at low zoom levels by doing
tippecanoe -o roads.mbtiles -j '{ "*": [ "attribute-filter", "FULLNAME", [ ">=", "$zoom", 9 ] ] }' tl_2015_06001_roads.json
An attribute-filter expression itself is always considered to evaluate to true (in other
words, to retain the feature instead of dropping it). If you want to use multiple
attribute-filter expressions, or to use other expressions to remove features from the same
layer, enclose them in an all expression so they will all be evaluated.
Dropping a fixed fraction of features by zoom level
• -r rate or --drop-rate=rate: Rate at which dots are dropped at zoom levels below
basezoom (default 2.5). If you use -rg, it will guess a drop rate that will keep
at most 50,000 features in the densest tile. You can also specify a marker-width
with -rgwidth to allow fewer features in the densest tile to compensate for the
larger marker, or -rfnumber to allow at most number features in the densest tile.
If you use -rp with -zg or --smallest-maximum-zoom-guess it will choose a drop
rate from the same distance-between-features metrics as are used to choose the
maxzoom.
• -B zoom or --base-zoom=zoom: Base zoom, the level at and above which all points
are included in the tiles (default maxzoom). If you use -Bg, it will guess a
zoom level that will keep at most 50,000 features in the densest tile. You can
also specify a marker-width with -Bgwidth to allow fewer features in the densest
tile to compensate for the larger marker, or -Bfnumber to allow at most number
features in the densest tile.
• --retain-points-multiplier=multiple: Retain the specified multiple of points
instead of just the number of points that would ordinarily be retained by the
drop rate. These can be thinned out later with the -m option to
tippecanoe-overzoom. The start of each cluster is marked in the feature sequence
by the tippecanoe:retain_points_multiplier_first attribute. The --tile-size-limit
will also be extended at low zoom levels to allow for the multiplied features.
• --drop-denser=percentage: When dropping dots at zoom levels below the base zoom,
give the specified percentage preference to retaining points in sparse areas and
dropping points in dense areas.
• --limit-base-zoom-to-maximum-zoom or -Pb: Limit the guessed base zoom not to
exceed the maxzoom, even if this would put more than the requested number of
features in a base zoom tile.
• -al or --drop-lines: Let "dot" dropping at lower zooms apply to lines too
• -ap or --drop-polygons: Let "dot" dropping at lower zooms apply to polygons too
• -K distance or --cluster-distance=distance: Cluster points (as with
--cluster-densest-as-needed, but without the experimental discovery process) that
are approximately within distance of each other. The units are tile coordinates
within a nominally 256-pixel tile, so the maximum value of 255 allows only one
feature per tile. Values around 10 are probably appropriate for typical marker
sizes. See --cluster-densest-as-needed below for behavior.
• -k zoom or --cluster-maxzoom=zoom: Max zoom on which to cluster points if
clustering is enabled.
• -kg or --cluster-maxzoom=g: Set --cluster-maxzoom= to maxzoom - 1 so that all
features are visible at the maximum zoom level.
• --preserve-point-density-threshold=level: At the low zoom levels, do not reduce
point density below the specified level, even if the specfied drop rate would
normally call for it, so that low-density areas of the map do not appear blank.
The unit is the distance between preserved points, as a fraction of the size of a
tile. Values of 32 or 64 are probably appropriate for typical marker sizes.
Dropping a fraction of features to keep under tile size limits
• -as or --drop-densest-as-needed: If a tile is too large, try to reduce it to
under 500K by increasing the minimum spacing between features. The discovered
spacing applies to the entire zoom level.
• -ad or --drop-fraction-as-needed: Dynamically drop some fraction of features from
each zoom level to keep large tiles under the 500K size limit. (This is like -pd
but applies to the entire zoom level, not to each tile.)
• -an or --drop-smallest-as-needed: Dynamically drop the smallest features
(physically smallest: the shortest lines or the smallest polygons) from each zoom
level to keep large tiles under the 500K size limit.
• -aN or --coalesce-smallest-as-needed: Dynamically combine the smallest features
(physically smallest: the shortest lines or the smallest polygons or the densest
points) from each zoom level into other nearby features to keep large tiles under
the 500K size limit. This option will probably not help very much with
LineStrings. It is mostly intended for polygons, to maintain the full original
area covered by polygons while still reducing the feature count somehow. The
attributes of the small polygons are not preserved into the combined features
(except through --accumulate-attribute), only their geometry. Furthermore, the
polygons to which nested polygons are coalesced may not necessarily be the
immediately enclosing features.
• -aD or --coalesce-densest-as-needed: Dynamically combine the densest features
from each zoom level into other nearby features to keep large tiles under the
500K size limit. (Again, mostly useful for polygons.)
• -aS or --coalesce-fraction-as-needed: Dynamically combine a fraction of features
from each zoom level into other nearby features to keep large tiles under the
500K size limit. (Again, mostly useful for polygons.)
• -pd or --force-feature-limit: Dynamically drop some fraction of features from
large tiles to keep them under the 500K size limit. It will probably look ugly at
the tile boundaries. (This is like -ad but applies to each tile individually, not
to the entire zoom level.) You probably don't want to use this.
• -aC or --cluster-densest-as-needed: If a tile is too large, try to reduce its
size by increasing the minimum spacing between features, and leaving one
placeholder feature from each group. The remaining feature will be given a
"clustered": true attribute to indicate that it represents a cluster, a
"point_count" attribute to indicate the number of features that were clustered
into it, and a "sqrt_point_count" attribute to indicate the relative width of a
feature to represent the cluster. If the features being clustered are points, the
representative feature will be located at the average of the original points'
locations; otherwise, one of the original features will be left as the
representative.
Dropping tightly overlapping features
• -g gamma or --gamma=_gamma_: Rate at which especially dense dots are dropped
(default 0, for no effect). A gamma of 2 reduces the number of dots less than a
pixel apart to the square root of their original number.
• -aG or --increase-gamma-as-needed: If a tile is too large, try to reduce it to
under 500K by increasing the -g gamma. The discovered gamma applies to the entire
zoom level. You probably want to use --drop-densest-as-needed instead.
Line and polygon simplification
• -S scale or --simplification=scale: Multiply the tolerance for line and polygon
simplification by scale. The standard tolerance tries to keep the line or polygon
within one tile unit of its proper location. You can probably go up to about 10
without too much visible difference.
• -ps or --no-line-simplification: Don't simplify lines and polygons
• -pS or --simplify-only-low-zooms: Don't simplify lines and polygons at maxzoom
(but do simplify at lower zooms)
• --simplification-at-maximum-zoom=scale: Use the specified scale at maxzoom
instead of the standard simplification scale (which still applies at lower zooms)
• -pn or --no-simplification-of-shared-nodes: Don't simplify away nodes at which
LineStrings or Polygon rings converge, diverge, or cross. (This will not be
effective if you also use --coalesce.) In between intersection nodes, LineString
segments or polygon edges will be simplified identically in each feature if
possible. Use this instead of --detect-shared-borders.
• -pt or --no-tiny-polygon-reduction: Don't combine the area of very small polygons
into small squares that represent their combined area.
• -pT or --no-tiny-polygon-reduction-at-maximum-zoom: Combine the area of very
small polygons into small squares that represent their combined area only at zoom
levels below the maximum.
• --tiny-polygon-size=size: Use the specified size for tiny polygons instead of the
default 2. Anything above 6 or so will lead to visible artifacts with the default
tile detail.
• -av or --visvalingam: Use Visvalingam's simplification algorithm rather than
Douglas-Peucker's.
Attempts to improve shared polygon boundaries
• -ab or --detect-shared-borders: DEPRECATED. In the manner of TopoJSON
⟨https://github.com/mbostock/topojson/wiki/Introduction⟩, detect borders that are
shared between multiple polygons and simplify them identically in each polygon.
This takes more time and memory than considering each polygon individually. Use
no-simplification-of-shared-nodes instead, which is faster and more correct.
• -aL or --grid-low-zooms: At all zoom levels below maxzoom, snap all lines and
polygons to a stairstep grid instead of allowing diagonals. You will also want to
specify a tile resolution, probably -D8. This option provides a way to display
continuous parcel, gridded, or binned data at low zooms without overwhelming the
tiles with tiny polygons, since features will either get stretched out to the
grid unit or lost entirely, depending on how they happened to be aligned in the
original data. You probably don't want to use this.
Controlling clipping to tile boundaries
• -b pixels or --buffer=pixels: Buffer size where features are duplicated from
adjacent tiles. Units are "screen pixels"—1/256th of the tile width or height.
(default 5)
• -pc or --no-clipping: Don't clip features to the size of the tile. If a feature
overlaps the tile's bounds or buffer at all, it is included completely. Be
careful: this can produce very large tilesets, especially with large polygons.
• -pD or --no-duplication: As with --no-clipping, each feature is included intact
instead of cut to tile boundaries. In addition, it is included only in a single
tile per zoom level rather than potentially in multiple copies. Clients of the
tileset must check adjacent tiles (possibly some distance away) to ensure they
have all features.
Reordering features within each tile
• -pi or --preserve-input-order: Preserve the original input order of features as
the drawing order instead of ordering geographically. (This is implemented as a
restoration of the original order at the end, so that dot-dropping is still
geographic, which means it also undoes -ao).
• -ac or --coalesce: Coalesce consecutive features that have the same attributes.
This can be useful if you have lots of small polygons with identical attributes
and you would like to merge them together.
• -ao or --reorder: Reorder features to put ones with the same attributes in
sequence (instead of ones that are approximately spatially adjacent), to try to
get them to coalesce. You probably want to use this if you use --coalesce.
• -ar or --reverse: Try reversing the directions of lines to make them coalesce and
compress better. You probably don't want to use this.
• -ah or --hilbert: Put features in Hilbert Curve order instead of the usual
Z-Order. This improves the odds that spatially adjacent features will be
sequentially adjacent, and should improve density calculations and spatial
coalescing. It should be the default eventually.
• --order-by=attribute: Order features by the specified attribute, in alphabetical
or numerical order. Multiple --order-by and --order-descending-by options may be
specified, the first being the primary sort key.
• --order-descending-by=attribute: Order features by the specified attribute, in
reverse alphabetical or numerical order. Multiple --order-by and
--order-descending-by options may be specified, the first being the primary sort
key.
• --order-smallest-first: Order features so the smallest geometry comes first in
each tile. Multiple --order-by and --order-descending-by options may be
specified, the first being the primary sort key.
• --order-largest-first: Order features so the largest geometry comes first in each
tile. Multiple --order-by and --order-descending-by options may be specified, the
first being the primary sort key.
Adding calculated attributes
• -ag or --calculate-feature-density: Add a new attribute,
tippecanoe_feature_density, to each feature, to record how densely features are
spaced in that area of the tile. You can use this attribute in the style to
produce a glowing effect where points are densely packed. It can range from 0 in
the sparsest areas to 255 in the densest.
• -ai or --generate-ids: Add an id (a feature ID, not an attribute named id) to
each feature that does not already have one. There is currently no guarantee that
the id added will be stable between runs or that it will not conflict with
manually-assigned feature IDs. Future versions of Tippecanoe may change the
mechanism for allocating IDs.
Trying to correct bad source geometry
• -aw or --detect-longitude-wraparound: Detect when consecutive points within a
feature jump to the other side of the world, and try to fix the geometry.
• -pw or --use-source-polygon-winding: Instead of respecting GeoJSON polygon ring
order, use the original polygon winding in the source data to distinguish inner
(clockwise) and outer (counterclockwise) polygon rings.
• -pW or --reverse-source-polygon-winding: Instead of respecting GeoJSON polygon
ring order, use the opposite of the original polygon winding in the source data
to distinguish inner (counterclockwise) and outer (clockwise) polygon rings.
• --clip-bounding-box=minlon,minlat,maxlon,maxlat: Clip all features to the
specified bounding box.
• -aP or --convert-polygons-to-label-points: Replace polygon geometries with a
label point or points for the polygon in each tile it intersects.
Setting or disabling tile size limits
• -M bytes or --maximum-tile-bytes=bytes: Use the specified number of bytes as the
maximum compressed tile size instead of 500K.
• -O features or --maximum-tile-features=features: Use the specified number of
features as the maximum in a tile instead of 200,000.
• --limit-tile-feature-count=features: Abruptly limit each tile to the specified
number of features, after ordering them if specified.
• --limit-tile-feature-count-at-maximum-zoom=features: Abruptly limit each tile at
the maximum zoom level to the specified number of features, after ordering them
if specified.
• -pf or --no-feature-limit: Don't limit tiles to 200,000 features
• -pk or --no-tile-size-limit: Don't limit tiles to 500K bytes
• -pC or --no-tile-compression: Don't compress the PBF vector tile data. If you are
getting "Unimplemented type 3" error messages from a renderer, it is probably
because it expects uncompressed tiles using this option rather than the normal
gzip-compressed tiles.
• -pg or --no-tile-stats: Don't generate the tilestats row in the tileset metadata.
Uploads without tilestats ⟨https://github.com/mapbox/mapbox-geostats⟩ will take
longer to process.
• --tile-stats-attributes-limit=count: Include tilestats information about at most
count attributes instead of the default 1000.
• --tile-stats-sample-values-limit=count: Calculate tilestats attribute statistics
based on count values instead of the default 1000.
• --tile-stats-values-limit=count: Report count unique attribute values in
tilestats instead of the default 100.
Temporary storage
• -t directory or --temporary-directory=directory: Put the temporary files in
directory. If you don't specify, it will use /tmp.
Progress indicator
• -q or --quiet: Work quietly instead of reporting progress or warning messages
• -Q or --no-progress-indicator: Don't report progress, but still give warnings
• -U seconds or --progress-interval=seconds: Don't report progress more often than
the specified number of seconds.
• -u or --json-progress: like -quiet but logs progress as a JSON object. Use in
combination with -U.
• -v or --version: Report Tippecanoe's version number
Filters
• -C command or --prefilter=command: Specify a shell filter command to be run at
the start of assembling each tile
• -c command or --postfilter=command: Specify a shell filter command to be run at
the end of assembling each tile
The pre- and post-filter commands allow you to do optional filtering or transformation on
the features of each tile as it is created. They are shell commands, run with the zoom
level, X, and Y as the $1, $2, and $3 arguments. Future versions of Tippecanoe may add
additional arguments for more context.
The features are provided to the filter as a series of newline-delimited GeoJSON objects
on the standard input, and tippecanoe expects to read another set of GeoJSON features from
the filter's standard output.
The prefilter receives the features at the highest available resolution, before line
simplification, polygon topology repair, gamma calculation, dynamic feature dropping, or
other internal processing. The postfilter receives the features at tile resolution, after
simplification, cleaning, and dropping.
The layer name is provided as part of the tippecanoe element of the feature and must be
passed through to keep the feature in its correct layer. In the case of the prefilter, the
tippecanoe element may also contain index, sequence, extent, and dropped, elements, which
must be passed through for internal operations like --drop-densest-as-needed,
--drop-smallest-as-needed, and --preserve-input-order to work.
Examples:
• Make a tileset of the Natural Earth countries to zoom level 5, and also copy the
GeoJSON features to files in a tiles/z/x/y.geojson directory hierarchy.
tippecanoe -o countries.mbtiles -z5 -C 'mkdir -p tiles/$1/$2; tee tiles/$1/$2/$3.geojson' ne_10m_admin_0_countries.json
• Make a tileset of the Natural Earth countries to zoom level 5, but including only
those tiles that intersect the bounding box of Germany
⟨https://www.flickr.com/places/info/23424829⟩. (The limit-tiles-to-bbox script
is in the Tippecanoe source directory ⟨filters/limit-tiles-to-bbox⟩.)
tippecanoe -o countries.mbtiles -z5 -C './filters/limit-tiles-to-bbox 5.8662 47.2702 15.0421 55.0581 $*' ne_10m_admin_0_countries.json
• Make a tileset of TIGER roads in Tippecanoe County, leaving out all but primary
and secondary roads (as classified by TIGER
⟨https://www.census.gov/geo/reference/mtfcc.html⟩) below zoom level 11.
tippecanoe -o roads.mbtiles -c 'if [ $1 -lt 11 ]; then grep "\"MTFCC\": \"S1[12]00\""; else cat; fi' tl_2016_18157_roads.json
Environment
Tippecanoe ordinarily uses as many parallel threads as the operating system claims that
CPUs are available. You can override this number by setting the TIPPECANOE_MAX_THREADS
environmental variable.
GeoJSON extension
Tippecanoe defines a GeoJSON extension that you can use to specify the minimum and/or
maximum zoom level at which an individual feature will be included in the vector tileset
being produced. If you have a feature like this:
{
"type" : "Feature",
"tippecanoe" : { "maxzoom" : 9, "minzoom" : 4 },
"properties" : { "FULLNAME" : "N Vasco Rd" },
"geometry" : {
"type" : "LineString",
"coordinates" : [ [ -121.733350, 37.767671 ], [ -121.733600, 37.767483 ], [ -121.733131, 37.766952 ] ]
}
}
with a tippecanoe object specifiying a maxzoom of 9 and a minzoom of 4, the feature will
only appear in the vector tiles for zoom levels 4 through 9. Note that the tippecanoe
object belongs to the Feature, not to its properties. If you specify a minzoom for a
feature, it will be preserved down to that zoom level even if dot-dropping with -r would
otherwise have dropped it.
You can also specify a layer name in the tippecanoe object, which will take precedence
over the filename or name specified using --layer, like this:
{
"type" : "Feature",
"tippecanoe" : { "layer" : "streets" },
"properties" : { "FULLNAME" : "N Vasco Rd" },
"geometry" : {
"type" : "LineString",
"coordinates" : [ [ -121.733350, 37.767671 ], [ -121.733600, 37.767483 ], [ -121.733131, 37.766952 ] ]
}
}
If your source GeoJSON only has minzoom, maxzoom and/or layer within properties you can
use ndjson-cli ⟨https://github.com/mbostock/ndjson-cli/blob/master/README.md⟩ to move them
into the required tippecanoe object by piping the GeoJSON like this:
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'
Geometric simplifications
At every zoom level, line and polygon features are subjected to Douglas-Peucker
simplification to the resolution of the tile.
For point features, it drops 1/2.5 of the dots for each zoom level above the point base
zoom (which is normally the same as the -z max zoom, but can be a different zoom specified
with -B if you have precise but sparse data). I don't know why 2.5 is the appropriate
number, but the densities of many different data sets fall off at about this same rate.
You can use -r to specify a different rate.
You can use the gamma option to thin out especially dense clusters of points. For any
area where dots are closer than one pixel together (at whatever zoom level), a gamma of 3,
for example, will reduce these clusters to the cube root of their original density.
For line features, it drops any features that are too small to draw at all. This still
leaves the lower zooms too dark (and too dense for the 500K tile limit, in some places),
so I need to figure out an equitable way to throw features away.
Unless you specify --no-tiny-polygon-reduction, any polygons that are smaller than a
minimum area (currently 4 square subpixels) will have their probability diffused, so that
some of them will be drawn as a square of this minimum size and others will not be drawn
at all, preserving the total area that all of them should have had together.
Features in the same tile that share the same type and attributes are coalesced together
into a single geometry if you use --coalesce. You are strongly encouraged to use -x to
exclude any unnecessary attributes to reduce wasted file size.
If a tile is larger than 500K, it will try encoding that tile at progressively lower
resolutions before failing if it still doesn't fit.
Development
Requires sqlite3 and zlib (should already be installed on MacOS). Rebuilding the manpage
uses md2man (gem install md2man).
Linux:
sudo apt-get install build-essential libsqlite3-dev zlib1g-dev
Then build:
make
and perhaps
make install
Tippecanoe now requires features from the 2011 C++ standard. If your compiler is older
than that, you will need to install a newer one. On MacOS, updating to the lastest XCode
should get you a new enough version of clang++. On Linux, you should be able to upgrade
g++ with
sudo add-apt-repository -y ppa:ubuntu-toolchain-r/test
sudo apt-get update -y
sudo apt-get install -y g++-5
export CXX=g++-5
Docker Image
A tippecanoe Docker image can be built from source and executed as a task to automatically
install dependencies and allow tippecanoe to run on any system supported by Docker.
$ docker build -t tippecanoe:latest .
$ docker run -it --rm \
-v /tiledata:/data \
tippecanoe:latest \
tippecanoe --output=/data/output.mbtiles /data/example.geojson
The commands above will build a Docker image from the source and compile the latest
version. The image supports all tippecanoe flags and options.
Examples
Check out some examples of maps made with tippecanoe ⟨MADE_WITH.md⟩
Name
The name is a joking reference ⟨http://en.wikipedia.org/wiki/Tippecanoe_and_Tyler_Too⟩ to
a "tiler" for making map tiles.
tile-join
Tile-join is a tool for copying and merging vector mbtiles files and for joining new
attributes from a CSV file to existing features in them.
It reads the tiles from an existing .mbtiles file, .pmtiles file, or a directory of tiles,
matches them against the records of the CSV (if one is specified), and writes out a new
tileset.
If you specify multiple source mbtiles files or source directories of tiles, all the
sources are read and their combined contents are written to the new mbtiles output. If
they define the same layers or the same tiles, the layers or tiles are merged.
The options are:
Output tileset
• -o out.mbtiles, out.pmtiles or --output=out.mbtiles: Write the new tiles to the
specified .mbtiles file.
• -e directory or --output-to-directory=directory: Write the new tiles to the
specified directory instead of to an mbtiles file.
• -f or --force: Remove out.mbtiles if it already exists.
• -r or --read-from: list of input mbtiles to read from.
Overzooming
• --overzoom: If one of the source tilesets has a larger maxzoom than the others,
scale up tiles from the tilesets with the lower maxzooms so they will all have
the same maxzoom in the output tileset.
• --buffer=pixels or -b pixels: Set the size of the tile buffer in the overzoomed
tiles.
Tileset description and attribution
• -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.
• -Rold: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
• -Z zoom or --minimum-zoom=zoom: Don't copy tiles from lower zoom levels than the
specified zoom
Merging attributes from a CSV file
• -c match.csv or --csv=match.csv: Use match.csv as the source for new attributes
to join to the features. The first line of the file should be the key names; the
other lines are values. The first column is the one to match against the existing
features; the other columns are the new data to add.
Filtering features and feature attributes
• -x key or --exclude=key: Remove attributes named key from the output. You can use
this to remove the field you are matching against if you no longer need it after
joining, or to remove any other attributes you don't want. You can use multiple
-x options to remove multiple attributes.
• -X or --exclude-all: Remove all attributes from the output.
• -y key or --include=key: Remove all attributes except for those named key from
the output. You can use multiple -y options to retain multiple attributes.
• -i or --if-matched: Only include features that matched the CSV.
• -j filter or --feature-filter=filter: Check features against a per-layer filter
(as defined in the Mapbox GL Style Specification ⟨https://docs.mapbox.com/mapbox-
gl-js/style-spec/#other-filter⟩) and only include those that match. Any features
in layers that have no filter specified will be passed through. Filters for the
layer "*" apply to all layers.
• -J filter-file or --feature-filter-file=filter-file: Like -j, but read the filter
from a file.
• -pe or --empty-csv-columns-are-null: Treat empty CSV columns as nulls rather than
as empty strings.
Setting or disabling tile size limits
• -pk or --no-tile-size-limit: Don't skip tiles larger than 500K.
• -pC or --no-tile-compression: Don't compress the PBF vector tile data.
• -pg or --no-tile-stats: Don't generate the tilestats row in the tileset metadata.
Uploads without tilestats ⟨https://github.com/mapbox/mapbox-geostats⟩ will take
longer to process.
• --tile-stats-attributes-limit=count: Include tilestats information about at most
count attributes instead of the default 1000.
• --tile-stats-sample-values-limit=count: Calculate tilestats attribute statistics
based on count values instead of the default 1000.
• --tile-stats-values-limit=count: Report count unique attribute values in
tilestats instead of the default 100.
Because tile-join just copies the geometries to the new .mbtiles without processing them
(except to rescale the extents if necessary), it doesn't have any of tippecanoe's
recourses if the new tiles are bigger than the 500K tile limit. If a tile is too big and
you haven't specified -pk, it is just left out of the new tileset.
Example
Imagine you have a tileset of census blocks:
curl -L -O http://www2.census.gov/geo/tiger/TIGER2010/TABBLOCK/2010/tl_2010_06001_tabblock10.zip
unzip tl_2010_06001_tabblock10.zip
ogr2ogr -f GeoJSON tl_2010_06001_tabblock10.json tl_2010_06001_tabblock10.shp
./tippecanoe -o tl_2010_06001_tabblock10.mbtiles tl_2010_06001_tabblock10.json
and a CSV of their populations:
curl -L -O http://www2.census.gov/census_2010/01-Redistricting_File--PL_94-171/California/ca2010.pl.zip
unzip -p ca2010.pl.zip cageo2010.pl |
awk 'BEGIN {
print "GEOID10,population"
}
(substr($0, 9, 3) == "750") {
print "\"" substr($0, 28, 2) substr($0, 30, 3) substr($0, 55, 6) substr($0, 62, 4) "\"," (0 + substr($0, 328, 9))
}' > population.csv
which looks like this:
GEOID10,population
"060014277003018",0
"060014283014046",0
"060014284001020",0
...
"060014507501001",202
"060014507501002",119
"060014507501003",193
"060014507501004",85
...
Then you can join those populations to the geometries and discard the no-longer-needed ID
field:
./tile-join -o population.mbtiles -x GEOID10 -c population.csv tl_2010_06001_tabblock10.mbtiles
tippecanoe-enumerate
The tippecanoe-enumerate utility lists the tiles that an mbtiles file defines. Each line
of the output lists the name of the mbtiles file and the zoom, x, and y coordinates of one
of the tiles. It does basically the same thing as
select zoom_level, tile_column, (1 << zoom_level) - 1 - tile_row from tiles;
on the file in sqlite3.
tippecanoe-decode
The tippecanoe-decode utility turns vector mbtiles back to GeoJSON. You can use it either
on an entire file:
tippecanoe-decode file.mbtiles
tippecanoe-decode file.pmtiles
or on an individual tile:
tippecanoe-decode file.mbtiles zoom x y
tippecanoe-decode file.vector.pbf zoom x y
Unless you use -c, the output is a set of nested FeatureCollections identifying each tile
and layer separately. Note that the same features generally appear at all zooms, so the
output for the file will have many copies of the same features at different resolutions.
Options
• -s projection or --projection=projection: Specify the projection of the output
data. Currently supported are EPSG:4326 (WGS84, the default) and EPSG:3857 (Web
Mercator).
• -z maxzoom or --maximum-zoom=maxzoom: Specify the highest zoom level to decode
from the tileset
• -Z minzoom or --minimum-zoom=minzoom: Specify the lowest zoom level to decode
from the tileset
• -l layer or --layer=layer: Decode only layers with the specified names. (Multiple
-l options can be specified.)
• -c or --tag-layer-and-zoom: Include each feature's layer and zoom level as part
of its tippecanoe object rather than as a FeatureCollection wrapper
• -S or --stats: Just report statistics about each tile's size and the number of
features in it, as a JSON structure.
• -f or --force: Decode tiles even if polygon ring order or closure problems are
detected
• -I or --integer: Report coordinates in integer tile coordinates
• -F or --fraction: Report coordinates as a fraction of the tile extent
tippecanoe-json-tool
Extracts GeoJSON features or standalone geometries as line-delimited JSON objects from a
larger JSON file, following the same extraction rules that Tippecanoe uses when parsing
JSON.
tippecanoe-json-tool file.json [... file.json]
Optionally also wraps them in a FeatureCollection or GeometryCollection as appropriate.
Optionally extracts an attribute from the GeoJSON properties for sorting.
Optionally joins a sorted CSV of new attributes to a sorted GeoJSON file.
The reason for requiring sorting is so that it is possible to work on CSV and GeoJSON
files that are larger than can comfortably fit in memory by streaming through them in
parallel, in the same way that the Unix join command does. The Unix sort command can be
used to sort large files to prepare them for joining.
The sorting interface is weird, and future version of tippecanoe-json-tool will replace it
with something better.
Options
• -w or --wrap: Add the FeatureCollection or GeometryCollection wrapper.
• -e attribute or --extract=attribute: Extract the named attribute as a prefix to
each feature. The formatting makes excessive use of \u quoting so that it
follows JSON string rules but will still be sorted correctly by tools that just
do ASCII comparisons.
• -c file.csv or --csv=file.csv: Join attributes from the named sorted CSV file,
using its first column as the join key. Geometries will be passed through even if
they do not match the CSV; CSV lines that do not match a geometry will be
discarded.
• -pe or --empty-csv-columns-are-null: Treat empty CSV columns as nulls rather than
as empty strings.
Example
Join Census LEHD (Longitudinal Employer-Household Dynamics ⟨https://lehd.ces.census.gov/⟩)
employment data to a file of Census block geography for Tippecanoe County, Indiana.
Download Census block geometry, and convert to GeoJSON:
$ curl -L -O https://www2.census.gov/geo/tiger/TIGER2010/TABBLOCK/2010/tl_2010_18157_tabblock10.zip
$ unzip tl_2010_18157_tabblock10.zip
$ ogr2ogr -f GeoJSON tl_2010_18157_tabblock10.json tl_2010_18157_tabblock10.shp
Download Indiana employment data, and fix name of join key in header
$ curl -L -O https://lehd.ces.census.gov/data/lodes/LODES7/in/wac/in_wac_S000_JT00_2015.csv.gz
$ gzip -dc in_wac_S000_JT00_2015.csv.gz | sed '1s/w_geocode/GEOID10/' > in_wac_S000_JT00_2015.csv
Sort GeoJSON block geometry so it is ordered by block ID. If you don't do this, you will
get a "GeoJSON file is out of sort" error.
$ tippecanoe-json-tool -e GEOID10 tl_2010_18157_tabblock10.json | LC_ALL=C sort > tl_2010_18157_tabblock10.sort.json
Join block geometries to employment attributes:
$ tippecanoe-json-tool -c in_wac_S000_JT00_2015.csv tl_2010_18157_tabblock10.sort.json > blocks-wac.json
tippecanoe-overzoom
The tippecanoe-overzoom utility creates a vector tile from one of its parent tiles,
clipping and scaling the geometry from the parent tile and excluding features that are
clipped away. The idea is that if you create very high resolution tiles (using
--extra-detail) at a moderate zoom level, you can use tippecanoe-overzoom to turn those
into moderate detail tiles at high zoom levels, for the benefit of renderers that cannot
internally overzoom high-resolution tiles without losing some of the precision. Running:
tippecanoe-overzoom -o out.mvt.gz inz/inx/iny outz/outx/outy in.mvt.gz
reads tile inz/inx/iny of in.mvt.gz and produces tile outz/outx/outy of out.mvt.gz.
Options
• -b buffer: Set the tile buffer in the output tile (default 5)
• -d detail: Set the detail of the output tile (default 12)
• -y attribute: Retain the specified attribute in the output features. All
attributes that are not named in a -y option will be removed.
• -j filter: Filter features using the same expression syntax as in tippecanoe.
• -m: If a tile was created with the --retain-points-multiplier option, thin the
tile back down to its normal feature count during overzooming. The first feature
from each cluster will be retained, unless -j is used to specify a filter, in
which case the first matching filter from each cluster will be retained instead.
• --preserve-input-order: Restore a set of filtered features to its original input
order
• --accumulate-attribute: Behaves as in tippecanoe to sum attributes from the
features of a multiplier cluster that are not included in the final output. The
attributes from features that are filtered away with -j are not accumulated onto
the output feature.
tippecanoe()