Strip metadata out of roads to reduce size

mit-jp · Feb 25, 2021 · 2233bd4 · 2233bd4
1 parent 58b04a3
commit 2233bd4
Showing 1 changed file with 14 additions and 2 deletions.
diff --git a/mit data/convert_highway_shapefile.fish b/mit data/convert_highway_shapefile.fish
@@ -2,7 +2,19 @@
 
 shp2json $argv[1] |
 geoproject 'd3.geoAlbersUsa().fitSize([975, 610], d)' |
-ndjson-split 'd.features' > temp-map.ndjson
+ndjson-split 'd.features' |
+ndjson-map 'delete d.properties.OBJECTID,
+delete d.properties.PREFIX,
+delete d.properties.PRETYPE,
+delete d.properties.NAME,
+delete d.properties.TYPE,
+delete d.properties.SUFFIX,
+delete d.properties.CLASS,
+delete d.properties.CLASS_RTE,
+delete d.properties.HWY_TYPE,
+delete d.properties.HWY_SYMBOL,
+delete d.properties.Shape_Leng,
+d' > temp-map.ndjson
 geo2topo -n roads=temp-map.ndjson |
 toposimplify -p -1 -f |
-topoquantize 1e5 > usa-topo.json
+topoquantize 1e5 > roads-topo.json