update

Author: hfu

.gitignore

@@ -0,0 +1,3 @@
+*.pmtiles
+*.csv
+

Makefile

@@ -0,0 +1,6 @@
+get: 
+	curl -o data.csv https://data.sfgov.org/api/views/3mea-di5p/rows.csv?date=20231114&accessType=DOWNLOAD
+generate:
+	ruby generate.rb | tippecanoe -f -o a.pmtiles --minimum-zoom=3 --maximum-zoom=13 \
+	--base-zoom=13 --drop-densest-as-needed
+

README.md

@@ -4,3 +4,10 @@ Base addresses from San Francisco's Enterprise Addressing System (EAS)
 # Source
 - [Addresses - Enterprise Addressing System from DataSF](https://data.sfgov.org/Geographic-Locations-and-Boundaries/Addresses-Enterprise-Addressing-System/3mea-di5p)
 - [Direct Link to Source Data](https://data.sfgov.org/api/views/3mea-di5p/rows.csv?date=20231114&accessType=DOWNLOAD)
+
+# Releases
+## 1st release
+CID: QmYsNiPd72agz3s9FdfihZFiRUVUaPYMHqV9FiizyMDgQ9
+
+[PMTiles Viewer](https://protomaps.github.io/PMTiles/?url=https%3A%2F%2Fsmb.optgeo.org%2Fipfs%2FQmYsNiPd72agz3s9FdfihZFiRUVUaPYMHqV9FiizyMDgQ9#map=11.37/37.7688/-122.4424)
+

generate.rb

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+require 'csv'
+require 'json'
+
+PATH = 'data.csv'
+
+CSV.foreach(PATH, :headers => true) {|r|
+  f = {
+    :type => :Feature,
+    :properties => r.to_hash,
+    :tippecanoe => {
+      :layer => :address
+    }
+  }
+  f[:properties].delete('point')
+  f[:geometry] = {
+    :type => :Point,
+    :coordinates => [
+      f[:properties].delete('Longitude').to_f,
+      f[:properties].delete('Latitude').to_f
+    ]
+  }
+  print "#{JSON.dump(f)}\n"
+}
+