添加图例、比例尺、指北针

代码中有注释，直接上

 

    指北针

public void AddNorthArrow(IPageLayout pageLayout)
       {
            IGraphicsContainer container = pageLayout as IGraphicsContainer; 
            IActiveView activeView = pageLayout as IActiveView; 
            // 获得MapFrame
            IFrameElement frameElement = container.FindFrame(activeView.FocusMap);
            IMapFrame mapFrame = frameElement as IMapFrame;
            //根据MapSurround的uid，创建相应的MapSurroundFrame和MapSurround
            UID uid = new UIDClass();
            uid.Value = "esriCarto.MarkerNorthArrow";
        IMapSurroundFrame mapSurroundFrame = mapFrame.CreateSurroundFrame(uid, null);
            //设置MapSurroundFrame中指北针的点符号
            IMapSurround mapSurround = mapSurroundFrame.MapSurround;
            IMarkerNorthArrow markerNorthArrow = mapSurround as IMarkerNorthArrow; 
            IMarkerSymbol markerSymbol = markerNorthArrow.MarkerSymbol;
            markerSymbol.Size = 18;
            markerNorthArrow.MarkerSymbol = markerSymbol;
            //QI，确定mapSurroundFrame的位置
            IElement element = mapSurroundFrame as IElement;
            IEnvelope envelope = new EnvelopeClass();
            envelope.PutCoords(0.2, 0.2, 5, 5);
            element.Geometry = envelope;
            //使用IGraphicsContainer接口添加显示
            container.AddElement(element, 0);
            activeView.Refresh();
 }

 

   比例尺

public void AddScalebar(IPageLayout pageLayout)
        {
            IGraphicsContainer container = pageLayout as IGraphicsContainer; 
            IActiveView activeView = pageLayout as IActiveView;
            // 获得MapFrame
            IFrameElement frameElement = container.FindFrame(activeView.FocusMap);
            IMapFrame mapFrame = frameElement as IMapFrame;
           //根据MapSurround的uid，创建相应的MapSurroundFrame和MapSurround
            UID uid = new UIDClass();
            uid.Value = "esriCarto.AlternatingScaleBar";
      IMapSurroundFrame mapSurroundFrame = mapFrame.CreateSurroundFrame(uid, null);
            //设置MapSurroundFrame中比例尺的样式
            IMapSurround mapSurround = mapSurroundFrame.MapSurround;
            IScaleBar markerScaleBar = ((IScaleBar)mapSurround);
            markerScaleBar.LabelPosition = esriVertPosEnum.esriBelow;
            markerScaleBar.UseMapSettings();
            //QI，确定mapSurroundFrame的位置
            IElement element = mapSurroundFrame as IElement;
            IEnvelope envelope = new EnvelopeClass();
            envelope.PutCoords(0.2, 0.2, 1, 2); 
            element.Geometry = envelope;
            //使用IGraphicsContainer接口添加显示
            container.AddElement(element, 0);
            activeView.Refresh();
   }

 

   图例

 private void AddLegend(IPageLayout pageLayout)
        {
            IActiveView pActiveView = pageLayout as IActiveView;
            IGraphicsContainer container = pageLayout as IGraphicsContainer;
            // 获得MapFrame
        IMapFrame mapFrame = container.FindFrame(pActiveView.FocusMap) as IMapFrame;
            //根据MapSurround的uid，创建相应的MapSurroundFrame和MapSurround
            UID uid = new UIDClass();
            uid.Value = "esriCarto.Legend";
        IMapSurroundFrame mapSurroundFrame = mapFrame.CreateSurroundFrame(uid, null);
            //设置图例的Title
            ILegend2 legend = mapSurroundFrame.MapSurround as ILegend2;
            legend.Title = "地图图例";
            ILegendFormat format = new LegendFormatClass();
            ITextSymbol symbol = new TextSymbolClass();
            symbol.Size = 4;
            format.TitleSymbol = symbol;
            legend.Format = format;
            //QI，确定mapSurroundFrame的位置
            IElement element = mapSurroundFrame as IElement;
            IEnvelope envelope = new EnvelopeClass();
            envelope.PutCoords(2, 2, 8, 8);
            element.Geometry = envelope;
            //使用IGraphicsContainer接口添加显示
            container.AddElement(element, 0);
            pActiveView.Refresh();
  }