a simple class to pull weather feed information from http://www.weather.com/

Weather.pde

/**
 *  Weather.pde
 *  processing
 *
 *  Ken Frederick
 *  ken.frederick@gmx.de
 *
 *  http://cargocollective.com/kenfrederick/
 *  http://kenfrederick.blogspot.com/
 *
 *  a class to pull weather feed information from
 *  http://www.weather.com/
 *
 *  "[PAR_ID]" and "[KEY]" ill have to be replaced with your own developer key
 *  http://registration.weather.com/ursa/profile
 *
 */



public class Weather {
  //-----------------------------------------------------------------------------
  //properties
  //-----------------------------------------------------------------------------
  private PApplet p;
  private XMLElement xml;
  private String place;
  private String feed;
  private String duration = "5";
  private boolean werror;

  //location();
  private String dham,
  tm,
  lat,
  lon,
  //sunr,
  //suns,
  zone;

  //current()
  private String lsup,
  obst,
  tmp,
  flik,
  t,
  bar_r,
  bar_d,
  wind_s,
  wind_gust,
  wind_d,
  wind_t,
  hmid,
  vis,
  uv_i,
  uv_t,
  dewp,
  moon_t;

  //forecast()
  private String hi,
  low,
  sunr,
  suns,
  part_day_t,
  part_day_wind_s,
  part_day_wind_gust,
  part_day_wind_d,
  part_day_wind_t,
  part_day_bt,
  part_day_ppcp,
  part_day_hmid,
  part_night_t,
  part_night_wind_s,
  part_night_wind_gust,
  part_night_wind_d,
  part_night_wind_t,
  part_night_bt,
  part_night_ppcp,
  part_night_hmid;



  //-----------------------------------------------------------------------------
  // constructor
  //-----------------------------------------------------------------------------
  public Weather(PApplet p, String place) {
    this.p = p;
    this.place = place;

    setPlace(place);
    //println(xml);
  }



  //-----------------------------------------------------------------------------
  // methods
  //-----------------------------------------------------------------------------
  private void location() {
    try {
      XMLElement loc = xml.getChild(1);

      dham = loc.getChild(0).getContent();
      tm = loc.getChild(1).getContent();
      lat = loc.getChild(2).getContent();
      lon = loc.getChild(3).getContent();
      sunr = loc.getChild(4).getContent();
      suns = loc.getChild(5).getContent();
      zone = loc.getChild(6).getContent();

      XMLElement cc = xml.getChild(3);

      lsup = cc.getChild(0).getContent();
    } catch(Exception e) {
      println("Error location(): " + e);
      werror = true;
    }
  }

  //-----------------------------------------------------------------------------
  private void current() {
    try {
      XMLElement cc = xml.getChild(3);

      obst = cc.getChild(1).getContent();
      tmp = cc.getChild(2).getContent();
      flik = cc.getChild(3).getContent();
      t = cc.getChild(4).getContent();

      bar_r = cc.getChild(6).getChild(0).getContent();
      bar_d = cc.getChild(6).getChild(1).getContent();

      wind_s = cc.getChild(7).getChild(0).getContent();
      wind_gust = cc.getChild(7).getChild(1).getContent();
      wind_d = cc.getChild(7).getChild(2).getContent();
      wind_t = cc.getChild(7).getChild(3).getContent();

      hmid = cc.getChild(8).getContent();
      vis = cc.getChild(9).getContent();

      uv_i = cc.getChild(10).getChild(0).getContent();
      uv_t = cc.getChild(10).getChild(1).getContent();

      dewp = cc.getChild(11).getContent();

      moon_t = cc.getChild(12).getChild(1).getContent();
    } catch(Exception e) {
      println("Error current(): " + e);
      werror = true;
    }
  }

  //-----------------------------------------------------------------------------
  private void forecast(int d) {
    try {
      d = d + 1;
      XMLElement dayf = xml.getChild(4);
      //println("DAYF");
      //println(dayf);
      XMLElement _day = dayf.getChild(d);
      //println("DAY");
      //println(_day);
      hi = _day.getChild(0).getContent();
      low = _day.getChild(1).getContent();
      sunr = _day.getChild(2).getContent();
      suns = _day.getChild(3).getContent();

      //day
      part_day_t = _day.getChild(4).getChild(1).getContent();

      part_day_wind_s = _day.getChild(4).getChild(2).getChild(0).getContent();
      part_day_wind_gust = _day.getChild(4).getChild(2).getChild(1).getContent();
      part_day_wind_d = _day.getChild(4).getChild(2).getChild(2).getContent();
      part_day_wind_t = _day.getChild(4).getChild(2).getChild(3).getContent();

      part_day_bt = _day.getChild(4).getChild(3).getContent();
      part_day_ppcp = _day.getChild(4).getChild(4).getContent();
      part_day_hmid = _day.getChild(4).getChild(5).getContent();

      //night
      part_night_t = _day.getChild(5).getChild(1).getContent();

      part_night_wind_s = _day.getChild(5).getChild(2).getChild(0).getContent();
      part_night_wind_gust = _day.getChild(5).getChild(2).getChild(1).getContent();
      part_night_wind_d = _day.getChild(5).getChild(2).getChild(2).getContent();
      part_night_wind_t = _day.getChild(5).getChild(2).getChild(3).getContent();

      part_night_bt = _day.getChild(5).getChild(3).getContent();
      part_night_ppcp = _day.getChild(5).getChild(4).getContent();
      part_night_hmid = _day.getChild(5).getChild(5).getContent();

    } catch(Exception e) {
      println(e);
      werror = true;
    }
  }



  //-----------------------------------------------------------------------------
  //sets
  //-----------------------------------------------------------------------------
  void setPlace(String place) {
    this.place = place;
    println(place + "!");
    feed = "http://xoap.weather.com/weather/local/" + place + "?cc=*&dayf=" + duration + "&link=xoap&prod=xoap&par=[PAR_ID]&key=[KEY]";
    xml = new XMLElement(p, feed);
  }

  //-----------------------------------------------------------------------------
  void setDuration(int duration) {
    this.duration = str(duration);
  }



  //-----------------------------------------------------------------------------
  //gets
  //-----------------------------------------------------------------------------
  boolean getError() {
    return werror;
  }

  //-----------------------------------------------------------------------------
  String getPlace() {
    place = xml.getChild(1).getChild(0).getContent();
    return place;
  }

  //-----------------------------------------------------------------------------
  String getDuration() {
    return duration;
  }
  int getDurationInt() {
    return int(duration);
  }

  //-----------------------------------------------------------------------------
  String[] getLocation() {
    location();
    String[] loc = {
      lsup,
      dham,
      tm,
      lat,
      lon,
      sunr,
      suns,
      zone
    };
    return loc;
  }

  //-----------------------------------------------------------------------------
  String[] getCurrent() {
    current();
    String[] cc = {
      obst,
      tmp,
      flik,
      t,
      bar_r,
      bar_d,
      wind_s,
      wind_gust,
      wind_d,
      wind_t,
      hmid,
      vis,
      uv_i,
      uv_t,
      dewp,
      moon_t
    };
    return cc;
  }

  //-----------------------------------------------------------------------------
  String[][] getForecast() {
    String[][] fo = new String[int(duration)][20];
    for (int i = 0; i < (int) duration; i++) {
      forecast(i);
      fo[i][0] = hi;
      fo[i][1] = low;
      fo[i][2] = sunr;
      fo[i][3] = suns;
      fo[i][4] = part_day_t;
      fo[i][5] = part_day_wind_s;
      fo[i][6] = part_day_wind_gust;
      fo[i][7] = part_day_wind_d;
      fo[i][8] = part_day_wind_t;
      fo[i][9] = part_day_bt;
      fo[i][10] = part_day_ppcp;
      fo[i][11] = part_day_hmid;
      fo[i][12] = part_night_t;
      fo[i][13] = part_night_wind_s;
      fo[i][14] = part_night_wind_gust;
      fo[i][15] = part_night_wind_d;
      fo[i][16] = part_night_wind_t;
      fo[i][17] = part_night_bt;
      fo[i][18] = part_night_ppcp;
      fo[i][19] = part_night_hmid;
    }
    return fo;
  }
}