/// <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");
}
/// <summary>
/// 添加制图标题
/// </summary>
/// <param name="layoutControl">布局视图</param>
/// <param name="pEnv">矩形框</param>
/// <param name="textElement">文本元素</param>
public static void AddMapTitle(AxPageLayoutControl layoutControl, IEnvelope pEnv, ITextElement textElement)
{
if (textElement == null)
{
return;
}
IGraphicsContainer pGraphicsContainer = layoutControl.PageLayout as IGraphicsContainer;
if (pGraphicsContainer == null)
{
return;
}
//如果存在标题，则删除标题
MappingHelper.DeleteElementByName(layoutControl, MapTitle);
IElement pElement = (IElement)textElement;
pElement.Geometry = pEnv;
//添加元素
MappingHelper.AddElementWithName(pGraphicsContainer, pElement, MapTitle);
}
/// <summary>
/// 获取制图标题元素
/// </summary>
/// <param name="layoutControl"></param>
/// <returns></returns>
public static ITextElement GetMapTitle(AxPageLayoutControl layoutControl)
{
return(MappingHelper.GetElementByName(layoutControl, MapTitle) as ITextElement);
}