C# Mapxtream---創建面

/// 

        /// 創建區域
        /// 
        ///區域信息
        ///點集
        private void CreateRect(RectInfo rectinfo,List points)
        {
            try
            {
                //RectInfo 的定義請看下面
                Catalog Cat = MapInfo.Engine.Session.Current.Catalog;
                Table tblTemp = Cat.GetTable(m_RectLayerName);
                if (tblTemp == null) return;

                FeatureGeometry geometry = new MultiPolygon(this.MapCoordSys, CurveSegmentType.Linear, points.ToArray());
                CompositeStyle style = GetOpaqueStyle(OpaqueType.NoNe, Color.Red); //GetOpaqueStyle在下面也有

                Feature ftr = new Feature(tblTemp.TableInfo.Columns);
                ftr.Geometry = geometry;
                ftr.Style = style;
                ftr["Name"] = rectinfo.FeatureName; //字段一的內容
                ftr["Remark"] = rectinfo.Remark; //字段二的內容
                ftr["Type"] = rectinfo.Type; //字段二的內容

                rectinfo.FeatureKey = tblTemp.InsertFeature(ftr).ToString();
                tblTemp.TableInfo.WriteTabFile();//保存到文件

            }
            catch (Exception ex)
            {
                throw ex;
            }
        }

 

    /// 

    /// 自定義區域信息
    /// 
    public class RectInfo 
    {
        private string _FeatureKey = string.Empty;
        /// 

        /// 圖元的KEY值
        /// 
        public string FeatureKey
        {
            get { return _FeatureKey; }
            set
            {
                if (_FeatureKey != value)
                {
                    _FeatureKey = value;
                }
            }
        }


        private string _FeatureName;
        /// 

        /// 圖元名稱
        /// 
        public string FeatureName
        {
            get { return _FeatureName; }
            set 
            {
                if (_FeatureName != value)
                {
                    _FeatureName = value;
                }
            }
        }


        private string _Type;
        /// 

        /// 類型
        /// 
        public string Type
        {
            get { return _Type; }
            set 
            {
                if (_Type != value)
                {
                    _Type = value;
                }
            }
        }

        private string _Remark;
        /// 

        /// 備註
        /// 
        public string Remark
        {
            get { return _Remark; }
            set 
            {
                if (_Remark != value)
                {
                    _Remark = value;
                }
            }
        }

        /// 

        /// 構造函數
        /// 
        public RectInfo()
        { }

        /// 

        /// 構造函數
        /// 
        /// 名稱
        /// 類型
        /// 備註
        public RectInfo(string _FeatureName, string _Type, string _Remark)
        {
            FeatureName = _FeatureName;
            Type = _Type;
            Remark = _Remark;
        }
  }

 

/// 

        /// 創建style
        /// 
        /// 不透明類型：ALL全部不透明（白色實心）；BORDER邊界不透明（填充部分透明）；NONE全透明
        /// 如果opaqueType=BORDER，此處設定邊界顏色
        /// 組合style
        private CompositeStyle GetOpaqueStyle(OpaqueType opaqueType, System.Drawing.Color borderColor)
        {
            MapInfo.Styles.SimpleInterior simpleInterior;
            if (opaqueType == OpaqueType.ALL)
                simpleInterior = new MapInfo.Styles.SimpleInterior(); //缺省構造函數是白色實心
            else
                simpleInterior = new MapInfo.Styles.SimpleInterior(1); //0是線透明，1是面透明

            MapInfo.Styles.LineWidth lineWidth = new MapInfo.Styles.LineWidth(1, MapInfo.Styles.LineWidthUnit.Point);

            MapInfo.Styles.SimpleLineStyle simpleLineStyle;
            if (opaqueType == OpaqueType.ALL)
                simpleLineStyle = new MapInfo.Styles.SimpleLineStyle(lineWidth, 1, borderColor);
            else if (opaqueType == OpaqueType.BORDER)
                simpleLineStyle = new MapInfo.Styles.SimpleLineStyle(lineWidth, 2, borderColor); //2表示填充透明，即能夠顯示輪廓
            else
                simpleLineStyle = new MapInfo.Styles.SimpleLineStyle(lineWidth, 0); //0表示全部透明，即連輪廓都看不到

            MapInfo.Styles.AreaStyle areaStyle = new MapInfo.Styles.AreaStyle(simpleLineStyle, simpleInterior);

            MapInfo.Styles.CompositeStyle compositeStyle = new MapInfo.Styles.CompositeStyle(areaStyle, null, null, null);

            return compositeStyle;
        }

 

    /// 

    /// 區域,線路樣式類型
    /// 
    public enum OpaqueType
    {
        /// 

        /// 全部不透明
        /// 
        ALL,
        /// 

        /// 邊界不透明
        /// 
        BORDER,
        /// 

        /// 全透明
        /// 
        NoNe
    }