private ICharacterMarkerSymbol GetMarkerSymbol(bool bLocated)
{
//Create a new system draw font
System.Drawing.Font drawFont = new System.Drawing.Font("ESRI Crime Analysis", 21);
//Create a new CharacterMarkerSymbol and get the ICharacterMarkerSymbol interface
ICharacterMarkerSymbol charMarker = new CharacterMarkerSymbolClass();
//Set the marker symbol properties
charMarker.Font = (stdole.IFontDisp)OLE.GetIFontDispFromFont(drawFont);
if (bLocated == true)
{
charMarker.CharacterIndex = 56;
charMarker.Color = GetRGBColor(255, 0, 0);
charMarker.Size = 30;
}
else
{
charMarker.CharacterIndex = 46;
charMarker.Color = GetRGBColor(0, 0, 0);
charMarker.Size = 30;
}
return(charMarker);
}
private stdole.IFontDisp GetIFontDisp(float size)
{
const string FontFamilyName = "Arial";
const FontStyle FontStyle = FontStyle.Bold;
Font font = new Font(FontFamilyName, size, FontStyle);
return(OLE.GetIFontDispFromFont(font) as stdole.IFontDisp);
}
public static ITextSymbol makeTextSymbol(string fontName, int fontSize)
{
ITextSymbol textSymbol = new TextSymbolClass();
System.Drawing.Font drawFont = new System.Drawing.Font(fontName, fontSize, FontStyle.Bold);
textSymbol.Font = (stdole.IFontDisp)OLE.GetIFontDispFromFont(drawFont);
textSymbol.Color = GetRGBColor(0, 0, 0);
ITextPath textPath = new BezierTextPathClass(); //to spline the text
ISimpleTextSymbol simpleTextSymbol = (ISimpleTextSymbol)textSymbol;
simpleTextSymbol.TextPath = textPath;
return(textSymbol);
}
private void axMapControl1_OnAfterDraw(object sender, ESRI.ArcGIS.Controls.IMapControlEvents2_OnAfterDrawEvent e)
{
//If foreground refreshed
if (e.viewDrawPhase == (int)esriViewDrawPhase.esriViewForeground)
{
//If a line object for splining text exists
if (m_Polyline != null)
{
//Ensure there's at least two points in the line
if (m_PointCollection.PointCount > 1)
{
//Create a line symbol and grab hold of the ILineSymbol interface
ILineSymbol lineSymbol = new SimpleLineSymbolClass();
//Set line symbol properties
lineSymbol.Color = GetRGBColor(0, 0, 0);
lineSymbol.Width = 2;
//Create a text symbol and grab hold of the ITextSymbol interface
ITextSymbol textSymbol = new TextSymbolClass();
//Create a system drawing font symbol with the specified properties
System.Drawing.Font drawFont = new System.Drawing.Font("Arial", 16, FontStyle.Bold);
//Set the text symbol font by getting the IFontDisp interface
textSymbol.Font = (stdole.IFontDisp)OLE.GetIFontDispFromFont(drawFont);
textSymbol.Color = GetRGBColor(0, 0, 0);
//Create a text path and grab hold of the ITextPath interface
ITextPath textPath = new BezierTextPathClass(); //to spline the text
//Grab hold of the ISimpleTextSymbol interface through the ITextSymbol interface
ISimpleTextSymbol simpleTextSymbol = (ISimpleTextSymbol)textSymbol;
//Set the text path of the simple text symbol
simpleTextSymbol.TextPath = textPath;
//Draw the line object and spline the user text around the line
object oLineSymbol = lineSymbol;
object oTextSymbol = textSymbol;
axMapControl1.DrawShape(m_Polyline, ref oLineSymbol);
axMapControl1.DrawText(m_Polyline, Text1.Text, ref oTextSymbol);
}
}
}
}
public static void AddAnnotate(ILayer layer, string fieldName)
{
var pGeoLayer = layer as IGeoFeatureLayer;
if (pGeoLayer != null)
{
var ipalpColl = pGeoLayer.AnnotationProperties;
ipalpColl.Clear();
IColor fontColor = new RgbColor();
fontColor.RGB = 255; //字体颜色
var font = new Font("宋体", 10, FontStyle.Bold);
var dispFont = (IFontDisp)OLE.GetIFontDispFromFont(font);
ITextSymbol pTextSymbol = new TextSymbolClass
{
Color = fontColor,
Font = dispFont,
Size = 12
};
////用来控制标注和要素的相对位置关系
ILineLabelPosition pLineLpos = new LineLabelPositionClass
{
Parallel = true, //修改标注的属性
//Perpendicular = false,
Below = true,
InLine = false,
Above = false
};
//用来控制标注冲突
ILineLabelPlacementPriorities pLinePlace = new LineLabelPlacementPrioritiesClass
{
AboveStart = 5, //让above 和start的优先级为5
BelowAfter = 4
};
//用来实现对ILineLabelPosition 和 ILineLabelPlacementPriorities以及更高级属性的控制
IBasicOverposterLayerProperties pBolp = new BasicOverposterLayerPropertiesClass
{
FeatureType = esriBasicOverposterFeatureType.esriOverposterPolygon,
LineLabelPlacementPriorities = pLinePlace,
LineLabelPosition = pLineLpos
};
//创建标注对象
ILabelEngineLayerProperties pLableEngine = new LabelEngineLayerPropertiesClass
{
Symbol = pTextSymbol,
BasicOverposterLayerProperties = pBolp,
IsExpressionSimple = true,
Expression = "[" + fieldName + "]"
};
//设置标注的参考比例尺
var pAnnoLyrPros = (IAnnotateLayerTransformationProperties)pLableEngine;
pAnnoLyrPros.ReferenceScale = 2500000;
//设置标注可见的最大最小比例尺
var pAnnoPros = pLableEngine as IAnnotateLayerProperties;
//pAnnoPros.AnnotationMaximumScale = 2500000;
//pAnnoPros.AnnotationMinimumScale = 25000000;
//pAnnoPros.WhereClause属性 设置过滤条件
ipalpColl.Add(pAnnoPros);
}
if (pGeoLayer != null)
{
pGeoLayer.DisplayAnnotation = true;
}
}
