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Add a point visualization example. Always make -z the first option.

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Eric Fischer 2018-08-01 15:19:24 -07:00
parent 510df9e28f
commit 18e8bea18d
1 changed files with 22 additions and 8 deletions
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README.md
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@ -111,7 +111,7 @@ curl -L -O https://www.naturalearthdata.com/http//www.naturalearthdata.com/downl
unzip ne_10m_railroads.zip unzip ne_10m_railroads.zip
ogr2ogr -f GeoJSON ne_10m_railroads.geojson ne_10m_railroads.shp ogr2ogr -f GeoJSON ne_10m_railroads.geojson ne_10m_railroads.shp
tippecanoe -o ne_10m_railroads.mbtiles -zg --drop-densest-as-needed --extend-zooms-if-still-dropping ne_10m_railroads.geojson 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 * `-zg`: Automatically choose a maxzoom that should be sufficient to clearly distinguish the features and the detail within each feature
@ -124,7 +124,7 @@ tippecanoe -o ne_10m_railroads.mbtiles -zg --drop-densest-as-needed --extend-zoo
curl -L -O https://usbuildingdata.blob.core.windows.net/usbuildings-v1-1/RhodeIsland.zip curl -L -O https://usbuildingdata.blob.core.windows.net/usbuildings-v1-1/RhodeIsland.zip
unzip RhodeIsland.zip unzip RhodeIsland.zip
tippecanoe -o RhodeIsland.mbtiles -zg --drop-densest-as-needed --extend-zooms-if-still-dropping RhodeIsland.geojson 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 * `-zg`: Automatically choose a maxzoom that should be sufficient to clearly distinguish the features and the detail within each feature
@ -138,13 +138,27 @@ curl -L -O https://www.naturalearthdata.com/http//www.naturalearthdata.com/downl
unzip -o 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 ogr2ogr -f GeoJSON ne_10m_admin_1_states_provinces.geojson ne_10m_admin_1_states_provinces.shp
tippecanoe -o ne_10m_admin_1_states_provinces.mbtiles -zg --coalesce-densest-as-needed --extend-zooms-if-still-dropping ne_10m_admin_1_states_provinces.geojson 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 * `-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 * `--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 * `--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 ### Clustered points (world cities), summing the clustered population, visible at all zoom levels
``` ```
@ -152,7 +166,7 @@ curl -L -O https://www.naturalearthdata.com/http//www.naturalearthdata.com/downl
unzip -o 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 ogr2ogr -f GeoJSON ne_10m_populated_places.geojson ne_10m_populated_places.shp
tippecanoe -o ne_10m_populated_places.mbtiles -zg -r1 --cluster-distance=10 --accumulate-attribute=POP_MAX:sum ne_10m_populated_places.geojson 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 * `-zg`: Automatically choose a maxzoom that should be sufficient to clearly distinguish the features and the detail within each feature
@ -171,8 +185,8 @@ curl -L -O https://www.naturalearthdata.com/http//www.naturalearthdata.com/downl
unzip -o 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 ogr2ogr -f GeoJSON ne_10m_admin_1_states_provinces.geojson ne_10m_admin_1_states_provinces.shp
tippecanoe -o countries-z3.mbtiles -z3 --coalesce-densest-as-needed ne_10m_admin_0_countries.geojson tippecanoe -z3 -o countries-z3.mbtiles --coalesce-densest-as-needed ne_10m_admin_0_countries.geojson
tippecanoe -o states-Z4.mbtiles -zg -Z4 --coalesce-densest-as-needed --extend-zooms-if-still-dropping ne_10m_admin_1_states_provinces.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 tile-join -o states-countries.mbtiles countries-z3.mbtiles states-Z4.mbtiles
``` ```
@ -199,7 +213,7 @@ curl -L -O https://www2.census.gov/geo/tiger/TIGER2010/COUNTY/2010/tl_2010_18_co
unzip tl_2010_18_county10.zip unzip tl_2010_18_county10.zip
ogr2ogr -f GeoJSON tl_2010_18_county10.geojson tl_2010_18_county10.shp ogr2ogr -f GeoJSON tl_2010_18_county10.geojson tl_2010_18_county10.shp
tippecanoe -o counties-separate.mbtiles -zg --coalesce-densest-as-needed --extend-zooms-if-still-dropping tl_2010_17_county10.geojson tl_2010_18_county10.geojson 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 * `-zg`: Automatically choose a maxzoom that should be sufficient to clearly distinguish the features and the detail within each feature
@ -217,7 +231,7 @@ curl -L -O https://www2.census.gov/geo/tiger/TIGER2010/COUNTY/2010/tl_2010_18_co
unzip tl_2010_18_county10.zip unzip tl_2010_18_county10.zip
ogr2ogr -f GeoJSON tl_2010_18_county10.geojson tl_2010_18_county10.shp ogr2ogr -f GeoJSON tl_2010_18_county10.geojson tl_2010_18_county10.shp
tippecanoe -o counties-merged.mbtiles -l counties -zg --coalesce-densest-as-needed --extend-zooms-if-still-dropping tl_2010_17_county10.geojson tl_2010_18_county10.geojson 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 As above, but