ArcGIS Pro二次开发-插入文本，图例和指北针

// Add text for title
             Coordinate2D titleTxt_ll = new Coordinate2D(4.5, 9.5);
             CIMTextSymbol arial36bold = SymbolFactory.Instance.ConstructTextSymbol(ColorFactory.Instance.BlueRGB, 80, "Arial", "Bold");
             GraphicElement titleTxtElm = LayoutElementFactory.Instance.CreatePointTextGraphicElement(newLayout, titleTxt_ll, "Census Data", arial36bold);
             titleTxtElm.SetName("Title");

             // Add north arrow
             // Reference a North Arrow in a style
             StyleProjectItem stylePrjItm = Project.Current.GetItems<StyleProjectItem>().FirstOrDefault(item => item.Name == "ArcGIS 2D");
             NorthArrowStyleItem naStyleItm = stylePrjItm.SearchNorthArrows("ArcGIS North 8")[0];

             // Set the center coordinate and create the arrow on the layout
             Coordinate2D center = new Coordinate2D(15, 7);
             NorthArrow arrowElm = LayoutElementFactory.Instance.CreateNorthArrow(newLayout, center, newMapframe, naStyleItm);
             arrowElm.SetName("New North Arrow");
             arrowElm.SetHeight(2);

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