/// <summary>
/// 设置图例属性
/// </summary>
/// <param name="pLegend">图例</param>
/// <param name="pMap">地图</param>
private static void SetLegendProperty(ILegend2 pLegend, IMap pMap)
{
pLegend.ClearItems();
pLegend.Title = "Legend";
pLegend.AutoVisibility = true;
ILegendFormat lFormat = pLegend.Format;
lFormat.DefaultPatchHeight = 20;
lFormat.DefaultPatchWidth = 30;
lFormat.TitleSymbol = GetTextSymbol();
for (int i = 0; i < pMap.LayerCount; i++)
{
ILegendItem pLegendItem = new HorizontalLegendItemClass();
pLegendItem.Layer = pMap.Layer[i]; //获取添加图例关联图层
pLegendItem.Columns = 2;
ILegendClassFormat iClassFormat = pLegendItem.LegendClassFormat;
iClassFormat.LabelSymbol = GetTextSymbol();
//iClassFormat.DescriptionSymbol = GetTextSymbol();
pLegendItem.HeadingSymbol = GetTextSymbol();
pLegendItem.ShowDescriptions = false;
pLegendItem.ShowHeading = true;
pLegendItem.ShowLabels = true;
pLegendItem.ShowLayerName = false;
pLegend.AddItem(pLegendItem); //添加图例内容
}
}
/// <summary>
/// 添加默认图例
/// </summary>
/// <param name="layoutControl">布局视图</param>
/// <param name="pEnv">矩形框</param>
public static void AddDefaultLegend(AxPageLayoutControl layoutControl, IEnvelope pEnv)
{
IGraphicsContainer pGraphicsContainer = layoutControl.PageLayout as IGraphicsContainer;
if (pGraphicsContainer == null)
{
return;
}
IMap pMap = layoutControl.ActiveView.FocusMap;
IMapFrame pMapFrame = pGraphicsContainer.FindFrame(pMap) as IMapFrame;
if (pMapFrame == null)
{
return;
}
UID pID = new UID {
Value = "esriCarto.Legend"
};
IMapSurroundFrame
pMapSurroundFrame = pMapFrame.CreateSurroundFrame(pID, null); //根据唯一标示符，创建与之对应MapSurroundFrame
//如果已经存在图例，删除已经存在的图例
MappingHelper.DeleteElementByName(layoutControl, "Legend");
//添加图例
IElement pElement = pMapSurroundFrame as IElement;
if (pElement == null)
{
return;
}
pElement.Geometry = pEnv;
IMapSurround pMapSurround = pMapSurroundFrame.MapSurround;
ILegend2 pLegend = pMapSurround as ILegend2;
if (pLegend == null)
{
return;
}
//设置图例属性
SetLegendProperty(pLegend, pMap);
//添加元素
MappingHelper.AddElementWithName(pGraphicsContainer, pElement, "Legend");
}
// 图例
private void AddLegend(AxPageLayoutControl axPageLayout)
{
//删除已经存在的图例
IElement pElement = axPageLayout.FindElementByName("Legends");
if (pElement != null)
{
axPageLayout.ActiveView.GraphicsContainer.DeleteElement(pElement);
}
IActiveView pActiveView = axPageLayout.PageLayout as IActiveView;
IGraphicsContainer container = axPageLayout.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();
double x = 3;
double y = 5;
envelope.PutCoords(x, y, x + 5, y + 5);
element.Geometry = envelope;
//使用IGraphicsContainer接口添加显示
container.AddElement(element, 0);
pActiveView.Refresh();
}
/// <summary>
/// 添加图例
/// </summary>
/// <param name="layoutControl">布局视图</param>
/// <param name="pEnv">矩形框</param>
/// <param name="pLegend">图例</param>
public static void AddLegend(AxPageLayoutControl layoutControl, IEnvelope pEnv, ILegend2 pLegend)
{
if (pLegend == null)
{
return;
}
IGraphicsContainer pGraphicsContainer = layoutControl.PageLayout as IGraphicsContainer;
if (pGraphicsContainer == null)
{
return;
}
IMap pMap = layoutControl.ActiveView.FocusMap;
IMapFrame pMapFrame = pGraphicsContainer.FindFrame(pMap) as IMapFrame;
if (pMapFrame == null)
{
return;
}
IMapSurroundFrame pMapSurroundFrame = new MapSurroundFrameClass();
pMapSurroundFrame.MapFrame = pMapFrame;
//如果已经存在图例，删除已经存在的图例
MappingHelper.DeleteElementByName(layoutControl, "Legend");
pMapSurroundFrame.MapSurround = pLegend as IMapSurround;
//添加图例
IElement pElement = pMapSurroundFrame as IElement;
pElement.Geometry = pEnv;
//添加元素
MappingHelper.AddElementWithName(pGraphicsContainer, pElement, "Legend");
}
//点击地图框事件
private void axPageLayoutControl1_OnMouseDown(object sender, ESRI.ArcGIS.Controls.IPageLayoutControlEvents_OnMouseDownEvent e)
{
if (e.button == 1)
{
IPageLayout pPageLayout = axPageLayoutControl1.PageLayout;;
IGraphicsContainer pGraphicsContainer = pPageLayout as IGraphicsContainer;
IActiveView pActiveView = pPageLayout as IActiveView;
IMapFrame pMapFrame;
IMapSurroundFrame pMapSurroundFrame;
IElement pElement;
switch (tag)
{
#region 添加标题
case 1:
ITextElement pTextElement = new TextElementClass();
pTextElement.Text = title;
pTextElement.Symbol = pTextSymbol;
pElement = pTextElement as IElement;
try
{
pElement.Geometry = axPageLayoutControl1.TrackRectangle();
}
catch
{
MessageBox.Show("请拉框选择范围!", "提示");
return;
}
pGraphicsContainer.AddElement(pElement, 0);
axPageLayoutControl1.Refresh();
tag = 0;
break;
#endregion
#region 添加图例
case 2:
pLegend2 = new LegendClass_2();
pElement = axPageLayoutControl1.FindElementByName("legend");
if (pElement != null)
{
pGraphicsContainer.DeleteElement(pElement);
}
pElementTypeName = "lenend";
pUid = new UIDClass();
pUid.Value = "esriCato.Legend";
if (pGraphicsContainer == null)
{
return;
}
pMapSurround = pLegend2 as IMapSurround;
pMapSurround.Map = pActiveView.FocusMap;
pMapFrame = pGraphicsContainer.FindFrame(pActiveView.FocusMap) as IMapFrame;
if (pMapFrame == null)
{
return;
}
pMapSurroundFrame = new MapSurroundFrameClass();
pMapSurroundFrame = pMapFrame.CreateSurroundFrame(pUid, null);
pMapSurroundFrame.MapSurround = pMapSurround;
pMapSurroundFrame.MapSurround.Name = pElementTypeName;
pMapSurroundFrame.MapFrame = pMapFrame;
pElement = pMapSurroundFrame as IElement;
try
{
pElement.Geometry = axPageLayoutControl1.TrackRectangle();
}
catch
{
MessageBox.Show("请拉框选择范围!", "提示");
return;
}
pElement.Activate(pActiveView.ScreenDisplay);
pElement.Draw(pActiveView.ScreenDisplay, null);
pGraphicsContainer.AddElement(pElement, 0);
pActiveView.PartialRefresh(esriViewDrawPhase.esriViewGeography, null, null);
//图例标题字体样式
pLegend2.Title = "图例";
pTitltFont.Name = "黑体";
pTitltFont.Bold = true;
pTitltFont.Size = 16;
pTitltTextSymbol.Color = ColorToIColor(Color.Black);
pTitltTextSymbol.Font = pTitltFont;
pLenendFormat.TitleSymbol = pTitltTextSymbol;
//图例图层名字体样式
pLayerFont.Name = "仿宋_GB2312";
pLayerFont.Size = 13;
pLayerTextSymbol.Font = pLayerFont;
//图例标签字体样式
pLabelFont.Name = "仿宋_GB2312";
pLabelFont.Size = 13;
pLabelTextSymbol.Font = pLayerFont;
for (int i = 0; i < pLenendItemsString.Count; i++)
{
for (int j = 0; j < pLegend2.ItemCount; j++)
{
if (pLenendItemsString[i].ToString() == pLegend2.get_Item(j).Layer.Name)
{
pLegend2.RemoveItem(j);
}
}
}
pLegend2.AdjustColumns(pColumnCount);
pLegend2.Refresh();
tag = 0;
break;
#endregion
#region 添加指北针
case 3:
if (pGraphicsContainer == null)
{
return;
}
pElement = axPageLayoutControl1.FindElementByName("northarrow");
if (pElement != null)
{
pGraphicsContainer.DeleteElement(pElement);
}
pElementTypeName = "northarrow";
pUid = new UIDClass();
pUid.Value = "esriCato.MarkerNorthArrow";
pMapFrame = pGraphicsContainer.FindFrame(pActiveView.FocusMap) as IMapFrame;
pMapSurroundFrame = new MapSurroundFrameClass();
pMapSurroundFrame = pMapFrame.CreateSurroundFrame(pUid, null);
pMapSurroundFrame.MapSurround = pNorthArrowStyleGalleryItem.Item as IMapSurround;
pElement = pMapSurroundFrame as IElement;
try
{
pElement.Geometry = axPageLayoutControl1.TrackRectangle();
}
catch
{
MessageBox.Show("请拉框选择范围!", "提示");
return;
}
pGraphicsContainer.AddElement(pElement, 0);
pActiveView.PartialRefresh(esriViewDrawPhase.esriViewGeography, null, null);
tag = 0;
break;
#endregion
#region 添加比例尺
case 4:
if (pGraphicsContainer == null)
{
return;
}
pElement = axPageLayoutControl1.FindElementByName("scalebar");
if (pElement != null)
{
pGraphicsContainer.DeleteElement(pElement);
}
IScaleBar pScaleBar;
pScaleBar = pScaleStyleGalleryItem.Item as IScaleBar;
pScaleBar.Units = esriUnits.esriKilometers;
pScaleBar.UnitLabel = " KM";
pElementTypeName = "scalebar";
pUid = new UIDClass();
pUid.Value = "esriCato.AlternatingScaleBar";
pMapFrame = pGraphicsContainer.FindFrame(pActiveView.FocusMap) as IMapFrame;
pMapSurroundFrame = new MapSurroundFrameClass();
pMapSurroundFrame = pMapFrame.CreateSurroundFrame(pUid, null);
pMapSurroundFrame.MapSurround = pScaleStyleGalleryItem.Item as IMapSurround;
pElement = pMapSurroundFrame as IElement;
try
{
pElement.Geometry = axPageLayoutControl1.TrackRectangle();
}
catch
{
MessageBox.Show("请拉框选择范围!", "提示");
}
pGraphicsContainer.AddElement(pElement, 0);
pActiveView.PartialRefresh(esriViewDrawPhase.esriViewGeography, null, null);
tag = 0;
break;
#endregion
}
}
}
