Powerlines.java

// To run:
// 1) Install java 17 (JDK, not JRE)
// 2) Then get latest planetiler.jar: wget https://github.com/onthegomap/planetiler/releases/latest/download/planetiler.jar
// 3) Then run this file with: java -cp planetiler.jar Powerlines.java --area=monaco --download --force

import com.onthegomap.planetiler.FeatureCollector;
import com.onthegomap.planetiler.FeatureMerge;
import com.onthegomap.planetiler.Planetiler;
import com.onthegomap.planetiler.Profile;
import com.onthegomap.planetiler.VectorTile;
import com.onthegomap.planetiler.config.Arguments;
import com.onthegomap.planetiler.reader.SourceFeature;
import com.onthegomap.planetiler.reader.osm.OsmElement;
import com.onthegomap.planetiler.reader.osm.OsmRelationInfo;
import java.nio.file.Path;
import java.util.List;

public class Powerlines implements Profile {

  @Override
  public void processFeature(SourceFeature sourceFeature, FeatureCollector features) {
    if (sourceFeature.canBeLine() && sourceFeature.hasTag("power", "line")) {
      features.line("power")
        .setBufferPixels(4)
        .setMinZoom(6)
        .setAttr("class", "line");
    }
  }

  @Override
  public String name() {
    return "Powerlines Overlay";
  }

  @Override
  public String description() {
    return "An example overlay showing powerlines";
  }

  @Override
  public boolean isOverlay() {
    return true; 
  }

  @Override
  public String attribution() {
    return """
      <a href=\"https://www.openstreetmap.org/copyright\" target=\"_blank\">&copy; OpenStreetMap contributors</a>
      """.trim();
  }

  public static void main(String[] args) throws Exception {
    run(Arguments.fromArgsOrConfigFile(args));
  }

  static void run(Arguments args) throws Exception {
    String area = args.getString("area", "geofabrik area to download", "monaco");
    Planetiler.create(args)
      .setProfile(new Powerlines())
      .addOsmSource("osm", Path.of("data", "sources", area + ".osm.pbf"), "geofabrik:" + area)
      .overwriteOutput("mbtiles", Path.of("data", "powerlines.mbtiles"))
      .run();
  }
}

Should that be a cli instruction?

https://gist.github.com/msbarry/97776d0ff76cae198e1c0fbd26fed6bd#file-powerlines-java-L6

Worked!

I removed the line starting with java...