add ‘major-cities’ target

bradoyler · Dec 16, 2016 · 08dd89a · 08dd89a
1 parent aa0964f
commit 08dd89a
Showing 1 changed file with 14 additions and 0 deletions.
diff --git a/us-cities/Makefile b/us-cities/Makefile
@@ -35,6 +35,11 @@ shp/us/cities-over-150k.shp: shp/us/cities.shp
 	rm -f $@
 	ogr2ogr -f 'ESRI Shapefile' -where "POP_2010 > 150000 OR FEATURE2 Like '%Capital%'" $@ $<
 
+shp/us/major-cities.shp: shp/us/cities.shp
+	mkdir -p $(dir $@)
+	rm -f $@
+	ogr2ogr -f 'ESRI Shapefile' -where "POP_2010 > 750000" $@ $<
+
 shp/us/cities-over-100k.shp: shp/us/cities.shp
 	mkdir -p $(dir $@)
 	rm -f $@
@@ -199,6 +204,15 @@ topo/us-cities.json: geo/cities-all.json
 		-p NAME,STATE,LATITUDE,LONGITUDE,POP_2010 \
 		-- cities=$<
 
+topo/us-major-cities.json: shp/us/major-cities.shp
+	../node_modules/.bin/topojson \
+		-o $@ \
+		--no-pre-quantization \
+		--post-quantization=1e6 \
+		--simplify=7e-7 \
+		-p NAME,STATE,LATITUDE,LONGITUDE,POP_2010 \
+		-- cities=$<
+
 ### misc target ###
 
 svg/us-cities.svg: topo/us-cities-projected.json