Code snippet for my Unfolding tutorial site.

UsingUnfolding-GeoJSONApp-ext02_07.pde

// we need to get right the airport list for the current country
// because airportLists is sorted after the coutries i calls the right one
ArrayList<Marker> currentAirportList = airportLists.get(i);

// iterating through this airport list
for (Marker currentAirport : currentAirportList ){

  // tell airport to draw itself
  currentAirport.draw(map);

  // check for mouse hover
  if (currentAirport.isInside(map, mouseX, mouseY)){

    // you should know this from the countries part
    HashMap currentAirportProps = currentAirport.getProperties();

    // Note: in this case "NAME" is written in uppercase,
    // this depends on the given geo.json file
    // it's better to know your data
    String currentAirportName = currentAirportProps.get("NAME").toString();

    // string output into the console
    println(currentAirportName);
  }
}