public MapInfo.Styles.CompositeStyle GetOpaquesStyle(bool opaqueType, System.Drawing.Color borderColor)
        {
            MapInfo.Styles.SimpleInterior simpleInterior;
            if (opaqueType)
                simpleInterior = new MapInfo.Styles.SimpleInterior(); //缺省构造函数是白色实心
            else
            {
                simpleInterior = new MapInfo.Styles.SimpleInterior(2); //2是面透明               
            }
            MapInfo.Styles.LineWidth lineWidth = new MapInfo.Styles.LineWidth(1, MapInfo.Styles.LineWidthUnit.Point);
            MapInfo.Styles.SimpleLineStyle simpleLineStyle;
            if (opaqueType)
                simpleLineStyle = new MapInfo.Styles.SimpleLineStyle(lineWidth);
            else if (!opaqueType)
                simpleLineStyle = new MapInfo.Styles.SimpleLineStyle(lineWidth, 2, borderColor); //2表示填充//透明，即能够显示轮廓
            else
                simpleLineStyle = new MapInfo.Styles.SimpleLineStyle(lineWidth, 0); //0表示全部透明，即连轮
            //廓都看不到
            MapInfo.Styles.AreaStyle areaStyle = new MapInfo.Styles.AreaStyle(simpleLineStyle, simpleInterior);
            simpleInterior.BackColor = borderColor;
            simpleInterior.ForeColor = borderColor;
            MapInfo.Styles.CompositeStyle compositeStyle = new MapInfo.Styles.CompositeStyle(areaStyle, null, null, null);
            return compositeStyle;
        }