Create a text annotation textelement

1. Create a font

<summary>

Font settings

</summary>

<param name= "Size" >the size.</param>

<param name= "FontName" >the fontname.</param>

<returns>

IFontDisp

</returns>

public static stdole. IFontDisp Getifontdisp (float size, string fontname)

{

string fontfamilyname = FontName;

FontStyle fontstyle = fontstyle.regular;

Font font = new Font (fontfamilyname, size, fontstyle);

Return OLE. Getifontdispfromfont (font) as stdole. IFontDisp;

}

2. Create a text annotation style

<summary>

Text annotation Style

</summary>

<param name= "Geometry" > Callout point, one point </param>

<param name= "text" > Label content </param>

<returns>

IElement

</returns>

public static Itextsymbol gettextelement (igeometry geometry, string text)

{

Itextsymbol Textsymbol = new Textsymbolclass ();

Textsymbol.color = colorcustom (0, 0, 0);

you can not directly modify The properties such as TextSymbol.Font.Bold, invalid

Stdole. IFontDisp font = GETIFONTDISP (9F, " Arial ");

Font. Bold = false;

Font. Italic = false;

Font. Strikethrough = false;

Font. underline = false;

Textsymbol.font = Font;

Textsymbol.horizontalalignment = Esritexthorizontalalignment.esrithaleft; level

Textsymbol.verticalalignment = Esritextverticalalignment.esritvatop;; Vertical

return textsymbol;

}

3. Create a text annotation

Itextelement textelement = new Textelementclass ();

Textelement.scaletext = true;

Textelement.symbol = Gettextelement ();

Textelement.text = Text;

ielement element = TextElement as ielement;

Element. Geometry = Geometry;

Create a text annotation textelement