Beispiel #1
0
  /**
   * Gets the closest match Note to a given pitchName, from a polylist of NoteSymbols
   *
   * @param pitch
   * @param tonesPL
   * @return Note an instance of the 'closest' note in list from the pitchName
   */
  public static Note getClosestMatch(int pitch, Polylist tonesPL) {
    int originalPitch = pitch;
    // System.out.println("getClosestMatch to " + pitchName + " " + tonesPL);

    if (!tonesPL.nonEmpty()) {
      ErrorLog.log(ErrorLog.WARNING, "*** Error: No tones list to match against.");
    }

    Polylist list = tonesPL;
    int[] tones = new int[list.length()];

    /* Make an array of pitches of all acceptable tones to match to */
    for (int i = 0; list.nonEmpty(); i++) {
      try {
        tones[i] = ((NoteSymbol) list.first()).getMIDI() % OCTAVE;
        list = list.rest();
      } catch (Exception ep) {
        // ep.printStackTrace();
      }
    }

    /* Search incrementally within the tones list for the 'closest'
     * acceptable pitchName.  This will fit our contour best.
     */
    int stepSearch = 0;
    int indexMatch;

    while ((indexMatch = arrayContains((pitch % OCTAVE), tones)) == OUT_OF_BOUNDS) {
      stepSearch++;
      if (stepSearch % 2 == 0) {
        pitch -= stepSearch;
      } else {
        pitch += stepSearch;
      }
    }

    Note note = ((NoteSymbol) tonesPL.nth(indexMatch)).toNote();
    note.setPitch(pitch);
    /*
    if( pitchName != originalPitch )
    {
        System.out.println("closest match to " + new Note(originalPitch).toLeadsheet() + " is " + note.toLeadsheet() + " among " + tonesPL);
    }
     */
    return note;
  }
Beispiel #2
0
  /**
   * Gets the closest match Note at or above a given pitchName, from a polylist of NoteSymbols
   *
   * @param pitch
   * @param tonesPL
   * @param upward
   * @return Note an instance of the 'closest' note in list from the pitchName
   */
  public static Note getClosestMatchDirectional(int pitch, Polylist tonesPL, boolean upward) {
    // System.out.println("getClosestMatchDirectional to " + pitchName + " " + tonesPL);
    if (!tonesPL.nonEmpty()) {
      ErrorLog.log(ErrorLog.WARNING, "*** Error: No tones list to match against.");
    }

    Polylist list = tonesPL;
    int[] tones = new int[tonesPL.length()];

    /* Make an array of pitches of all acceptable tones to match to */
    for (int i = 0; i < tones.length; i++) {
      try {
        tones[i] = ((NoteSymbol) tonesPL.first()).getMIDI() % OCTAVE;
        tonesPL = tonesPL.rest();
      } catch (Exception ep) {
        // ep.printStackTrace();
      }
    }

    /* Search incrementally within the tones list for the 'closest'
     * acceptable pitchName.  This will fit our contour best.
     */

    int indexMatch;

    if (upward) {
      pitch++;
    } else {
      pitch--;
    }
    while ((indexMatch = arrayContains((pitch % OCTAVE), tones)) == OUT_OF_BOUNDS) {
      if (upward) {
        pitch++;
      } else {
        pitch--;
      }
    }

    Note note = ((NoteSymbol) list.nth(indexMatch)).toNote();
    note.setPitch(pitch);
    return note;
  }