Add filters to opennames processing. Filter out suburban areas.

cmd/save-gob/main.go

@@ -1,10 +1,12 @@
 package main
 
 import (
+	"encoding/gob"
 	"log"
 	"os"
 
 	"github.com/ray1729/gpx-utils/pkg/openname"
+	"github.com/ray1729/gpx-utils/pkg/placenames"
 )
 
 func main() {
@@ -12,7 +14,28 @@ func main() {
 	if len(os.Args) != 3 {
 		log.Fatal("Usage: %s INFILE OUTFILE", os.Args[0])
 	}
-	if err := openname.Save(os.Args[1], os.Args[2]); err != nil {
+	wc, err := os.OpenFile(os.Args[2], os.O_CREATE|os.O_RDWR|os.O_TRUNC, 0644)
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer wc.Close()
+	enc := gob.NewEncoder(wc)
+	err = openname.ProcessFile(
+		os.Args[1],
+		func(r *openname.Record) error {
+			b := placenames.NamedBoundary{
+				Name: r.Name,
+				Xmin: r.MbrXMin,
+				Ymin: r.MbrYMin,
+				Xmax: r.MbrXMax,
+				Ymax: r.MbrYMax}
+			return enc.Encode(b)
+		},
+		openname.FilterType("populatedPlace"),
+		openname.FilterLocalType("Suburban Area").Complement(),
+		openname.FilterAreaGt(0),
+	)
+	if err != nil {
 		log.Fatal(err)
 	}
 }