ArcGIS Engine开发：地图标注（C#）

 地图标注是专题图制作中必不可少的环节，下面看看在ArcGIS Engine中如何实现地图标注功能：地图标注需要几个参数：标注字体、标注样式、字体颜色等，下面就是设置界面

1.  //设置标注颜色
3.         private void btnColor_Click(object sender, EventArgs e)
5.         {
7.             if (pTextSymbol == null)
9.                 return;
13.             try
15.             {
17.                 Color color = new Color();
19.                 color = ESRI.ArcGIS.ADF.Converter.FromRGBColor((IRgbColor)pTextSymbol.Color);
21.                 colorDialog1.Color = color;
23.                 DialogResult dr = colorDialog1.ShowDialog();
25.                 if (dr == DialogResult.OK)
27.                 {
29.                     pTextSymbol.Color = (IColor)ESRI.ArcGIS.ADF.Converter.ToRGBColor(colorDialog1.Color);
31.                    
33.                     PreviewLabel();
35.                 }
37.             }
39.             catch (Exception ex)
41.             {
43.                 MessageBox.Show(ex.Message);
45.             }
47.         }
49.         //设置标注样式
51.         private void btnStyle_Click(object sender, EventArgs e)
53.         {
55.             LabelTextSymbol pLabelSymbolForm = new LabelTextSymbol();
57.             if (pTextSymbol != null)
59.             {
61.                 pLabelSymbolForm.m_pTextSymbol = pTextSymbol;
63.             }
65.             DialogResult dr = pLabelSymbolForm.ShowDialog();
67.             if (dr == DialogResult.OK)
69.             {
71.                 pTextSymbol = pLabelSymbolForm.m_pTextSymbol;
73.                 ItemID = pLabelSymbolForm.GalleryItemId;
75.                 PreviewLabel();
77.             }
79.         }