void setStrokeJoin(String linejoin) {
    if (linejoin.equals("inherit")) {
      // do nothing, will inherit automatically

    } else if (linejoin.equals("miter")) {
      strokeJoin = PConstants.MITER;

    } else if (linejoin.equals("round")) {
      strokeJoin = PConstants.ROUND;

    } else if (linejoin.equals("bevel")) {
      strokeJoin = PConstants.BEVEL;
    }
  }