//読み出し
 public void LoadAreaData(string fileNamePath = "")
 {
     if (fileNamePath.Length > 0)
     {
         fileName = fileNamePath;
     }
     //XmlSerializerオブジェクトを作成
     System.Xml.Serialization.XmlSerializer serializer =
         new System.Xml.Serialization.XmlSerializer(typeof(RadarViewType));
     System.IO.StreamReader sr = new System.IO.StreamReader(
         fileName, new System.Text.UTF8Encoding(false));
     //XMLファイルから読み込み、逆シリアル化する
     radarViewOption = (RadarViewType)serializer.Deserialize(sr);
     sr.Close();
 }
 public RadarViewOptionData(string fileNamePath)
 {
     this.fileName = fileNamePath;
     if (File.Exists(this.fileName))
     {
         LoadAreaData(fileName);
         DefaultZoomoutValue = radarViewOption.defaultZoomoutValue;
         voMob = radarViewOption.mob;
         voHum = radarViewOption.hum;
         voId  = radarViewOption.id;
     }
     else
     {
         radarViewOption = new RadarViewType();
         SaveAreaData(fileName);//空のデーターを作成して保存
     }
 }