//TextSymbol
private void button18_Click(object sender, EventArgs e)
{
ITextSymbol textSymbol = new TextSymbolClass();
System.Drawing.Font drawFont = new System.Drawing.Font("宋体", 16, FontStyle.Bold);
stdole.IFontDisp fontDisp = (stdole.IFontDisp)(new stdole.StdFontClass());
textSymbol.Font = fontDisp;
textSymbol.Color = getRGB(0, 255, 0);
textSymbol.Size = 20;
IPolyline polyline = new PolylineClass();
IPoint point = new PointClass();
point.PutCoords(1, 1);
polyline.FromPoint = point;
point.PutCoords(10, 10);
polyline.ToPoint = point;
ITextPath textPath = new BezierTextPathClass();
//创建简单标注
ILineSymbol lineSymbol = new SimpleLineSymbolClass();
lineSymbol.Color = getRGB(255, 0, 0);
lineSymbol.Width = 5;
ISimpleTextSymbol simpleTextSymbol = textSymbol as ISimpleTextSymbol;
simpleTextSymbol.TextPath = textPath;
object oLineSymbol = lineSymbol;
object oTextSymbol = textSymbol;
IActiveView activeView = this.axMapControl1.ActiveView;
activeView.ScreenDisplay.StartDrawing(activeView.ScreenDisplay.hDC, (short)esriScreenCache.esriNoScreenCache);
activeView.ScreenDisplay.SetSymbol(oLineSymbol as ISymbol);
activeView.ScreenDisplay.DrawPolyline(polyline as IGeometry);
activeView.ScreenDisplay.SetSymbol(oTextSymbol as ISymbol);
activeView.ScreenDisplay.DrawText(polyline as IGeometry, "简单标注");;
activeView.ScreenDisplay.FinishDrawing();
//创建气泡标注（两中风格，一种是有锚点，一种是marker方式）
//锚点方式
ISimpleFillSymbol simpleFillSymbol = new SimpleFillSymbolClass();
simpleFillSymbol.Color = getRGB(0, 255, 0);
simpleFillSymbol.Style = esriSimpleFillStyle.esriSFSSolid;
IBalloonCallout balloonCallout = new BalloonCalloutClass();
balloonCallout.Style = esriBalloonCalloutStyle.esriBCSRectangle;
balloonCallout.Symbol = simpleFillSymbol;
balloonCallout.LeaderTolerance = 10;
point.PutCoords(5, 5);
balloonCallout.AnchorPoint = point;
IGraphicsContainer graphicsContainer = activeView as IGraphicsContainer;
IFormattedTextSymbol formattedTextSymbol = new TextSymbolClass();
formattedTextSymbol.Color = getRGB(0, 0, 255);
point.PutCoords(10, 5);
ITextBackground textBackground = balloonCallout as ITextBackground;
formattedTextSymbol.Background = textBackground;
activeView.ScreenDisplay.StartDrawing(activeView.ScreenDisplay.hDC, (short)esriScreenCache.esriNoScreenCache);
activeView.ScreenDisplay.SetSymbol(formattedTextSymbol as ISymbol);
activeView.ScreenDisplay.DrawText(point as IGeometry, "气泡1");
activeView.ScreenDisplay.FinishDrawing();
//marker方式
textSymbol = new TextSymbolClass();
textSymbol.Color = getRGB(255, 0, 0);
textSymbol.Angle = 0;
textSymbol.RightToLeft = false;
textSymbol.VerticalAlignment = esriTextVerticalAlignment.esriTVABaseline;
textSymbol.HorizontalAlignment = esriTextHorizontalAlignment.esriTHAFull;
IMarkerTextBackground markerTextBackground = new MarkerTextBackgroundClass();
markerTextBackground.ScaleToFit = true;
markerTextBackground.TextSymbol = textSymbol;
IRgbColor rgbColor = new RgbColorClass();
IPictureMarkerSymbol pictureMarkerSymbol = new PictureMarkerSymbolClass();
//string fileName = @"E:\vs2005\第五章\lesson2\lesson2\data\qq.bmp";
string path = Directory.GetCurrentDirectory();
string fileName = path + @"\qq.bmp";
pictureMarkerSymbol.CreateMarkerSymbolFromFile(esriIPictureType.esriIPictureBitmap, fileName);
pictureMarkerSymbol.Angle = 0;
pictureMarkerSymbol.BitmapTransparencyColor = rgbColor;
pictureMarkerSymbol.Size = 20;
pictureMarkerSymbol.XOffset = 0;
pictureMarkerSymbol.YOffset = 0;
markerTextBackground.Symbol = pictureMarkerSymbol as IMarkerSymbol;
formattedTextSymbol = new TextSymbolClass();
formattedTextSymbol.Color = getRGB(255, 0, 0);
fontDisp.Size = 10;
fontDisp.Bold = true;
formattedTextSymbol.Font = fontDisp;
point.PutCoords(15, 5);
formattedTextSymbol.Background = markerTextBackground;
activeView.ScreenDisplay.StartDrawing(activeView.ScreenDisplay.hDC, (short)esriScreenCache.esriNoScreenCache);
activeView.ScreenDisplay.SetSymbol(formattedTextSymbol as ISymbol);
activeView.ScreenDisplay.DrawText(point as IGeometry, "气泡2");
activeView.ScreenDisplay.FinishDrawing();
}
public static ITextSymbol get_TextSymbol(
IColor a_Color,
IColor a_Background,
string a_Font,
double a_Size,
esriTextHorizontalAlignment a_Align,
esriTextVerticalAlignment a_VAlign)
{
ITextSymbol theReturn = new TextSymbolClass();
theReturn.Color = a_Color;
theReturn.HorizontalAlignment = a_Align;
theReturn.VerticalAlignment = a_VAlign;
theReturn.Size = a_Size;
IMarkerTextBackground theBackground = new MarkerTextBackgroundClass();
theBackground.Symbol = GraphicsHelper.get_SimplePointSymbol(a_Background, a_Size+1, esriSimpleMarkerStyle.esriSMSCircle);
theBackground.ScaleToFit = true;
IFormattedTextSymbol theFTextSym = (IFormattedTextSymbol)theReturn;
theFTextSym.Background = theBackground;
return theReturn;
}
