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();

}

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2011-12-15 10:50

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