private void LabelHighWay(ILayer pLayer)
{
IGeoFeatureLayer pGeoFeatureLayer = pLayer as IGeoFeatureLayer;
if (pGeoFeatureLayer != null)
{
IAnnotateLayerPropertiesCollection panAnnotateLayerPropertiesCollection =
pGeoFeatureLayer.AnnotationProperties;
panAnnotateLayerPropertiesCollection.Clear();
IRgbColor pColor = new RgbColor();
pColor.Red = 0;
pColor.Blue = 0;
pColor.Green = 0;
IFormattedTextSymbol pTextSymbol = new TextSymbol();
//ITextSymbol pTextSymbol = new TextSymbol();
pTextSymbol.Background = CreateBalloonCallout() as ITextBackground;
pTextSymbol.Color = pColor;
pTextSymbol.Size = 10;
pTextSymbol.Direction = esriTextDirection.esriTDHorizontal;
Font font = new System.Drawing.Font("宋体", 10);
pTextSymbol.Font = ESRI.ArcGIS.ADF.COMSupport.OLE.GetIFontDispFromFont(font) as stdole.IFontDisp;
IBasicOverposterLayerProperties properties = new BasicOverposterLayerProperties();
IFeatureLayer pFeatureLayer = pLayer as IFeatureLayer;
switch (pFeatureLayer.FeatureClass.ShapeType)
{
case esriGeometryType.esriGeometryPolygon:
properties.FeatureType = esriBasicOverposterFeatureType.esriOverposterPolygon;
break;
case esriGeometryType.esriGeometryPoint:
properties.FeatureType = esriBasicOverposterFeatureType.esriOverposterPoint;
break;
case esriGeometryType.esriGeometryPolyline:
properties.FeatureType = esriBasicOverposterFeatureType.esriOverposterPolyline;
break;
}
ILabelEngineLayerProperties2 properties2 =
new LabelEngineLayerProperties() as ILabelEngineLayerProperties2;
if (properties2 != null)
{
properties2.Expression = "[LXDM]";
properties2.Symbol = pTextSymbol;
properties2.BasicOverposterLayerProperties = properties;
IAnnotateLayerProperties p = properties2 as IAnnotateLayerProperties;
// p.AnnotationMaximumScale = maxScale;
// p.AnnotationMinimumScale = minScale;
panAnnotateLayerPropertiesCollection.Add(p);
}
}
if (pGeoFeatureLayer != null)
{
pGeoFeatureLayer.DisplayAnnotation = true;
}
_mxDocument.ActivatedView.Refresh();
}
/// <summary>
/// 标注图层
/// </summary>
/// <param name="pLayer">需要标注的图层</param>
/// <param name="fontSize">字体大小</param>
/// <param name="labelField">标注字段</param>
/// <param name="minScale">显示标注的最小比例尺</param>
/// <param name="maxScale">显示标注的最大比例尺</param>
/// 注意：一问最后两个参数是比例尺的分母，所有minScale的值应该比maxSacle的值大
private void LabelLayer(ILayer pLayer, int fontSize, string labelField, double minScale, double maxScale)
{
IGeoFeatureLayer pGeoFeatureLayer = pLayer as IGeoFeatureLayer;
if (pGeoFeatureLayer != null)
{
IAnnotateLayerPropertiesCollection panAnnotateLayerPropertiesCollection =
pGeoFeatureLayer.AnnotationProperties;
panAnnotateLayerPropertiesCollection.Clear();
IRgbColor pColor = new RgbColor();
pColor.Red = 0;
pColor.Blue = 0;
pColor.Green = 0;
ITextSymbol pTextSymbol = new TextSymbol();
pTextSymbol.Color = pColor;
pTextSymbol.Size = fontSize;
Font font = new System.Drawing.Font("宋体", fontSize);
pTextSymbol.Font = ESRI.ArcGIS.ADF.COMSupport.OLE.GetIFontDispFromFont(font) as stdole.IFontDisp;
IBasicOverposterLayerProperties properties = new BasicOverposterLayerProperties();
IFeatureLayer pFeatureLayer = pLayer as IFeatureLayer;
switch (pFeatureLayer.FeatureClass.ShapeType)
{
case esriGeometryType.esriGeometryPolygon:
properties.FeatureType = esriBasicOverposterFeatureType.esriOverposterPolygon;
break;
case esriGeometryType.esriGeometryPoint:
properties.FeatureType = esriBasicOverposterFeatureType.esriOverposterPoint;
break;
case esriGeometryType.esriGeometryPolyline:
properties.FeatureType = esriBasicOverposterFeatureType.esriOverposterPolyline;
break;
}
ILabelEngineLayerProperties2 properties2 =
new LabelEngineLayerProperties() as ILabelEngineLayerProperties2;
if (properties2 != null)
{
properties2.Expression = "[" + labelField + "]";
properties2.Symbol = pTextSymbol;
properties2.BasicOverposterLayerProperties = properties;
IAnnotateLayerProperties p = properties2 as IAnnotateLayerProperties;
p.AnnotationMaximumScale = maxScale;
p.AnnotationMinimumScale = minScale;
panAnnotateLayerPropertiesCollection.Add(p);
}
}
if (pGeoFeatureLayer != null)
{
pGeoFeatureLayer.DisplayAnnotation = true;
}
_mxDocument.ActiveView.Refresh();
}
private void btnLabel_Click(object sender, RoutedEventArgs e)
{
//The FeatureLayer for labelling
IFeatureLayer labelLayer = this.m_map.Map.get_Layer(0) as IFeatureLayer;
IGeoFeatureLayer gLabelLayer = labelLayer as IGeoFeatureLayer;
IAnnotateLayerPropertiesCollection annoPropCol = gLabelLayer.AnnotationProperties;
annoPropCol.Clear();
//ITextSymbol uasage
ITextSymbol pTextSyl = new TextSymbol();
//Font fnt = new System.Drawing.Font("宋体", 10f, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point);
//using stdole
IFontDisp font = new StdFont() as IFontDisp;
font.Size = 20;
font.Italic = true;
// pTextSyl.Size = 20;
pTextSyl.Font = font;
//IRgbColor fromColor = new RgbColor(255,0, 0);
//ESRI.ArcGIS.Display.RgbColorClass()
RgbColor color = new RgbColor();
color.Red = 255;
color.Green = 0;
color.Blue = 0;
pTextSyl.Color = color;
//Position
IBasicOverposterLayerProperties pBasic = new BasicOverposterLayerProperties();
// if (labelLayer.FeatureClass.ShapeType == esriGeometryType.esriGeometryPoint)
// {
IPointPlacementPriorities pPlacementPoint = new PointPlacementPriorities();
pBasic.FeatureType = esriBasicOverposterFeatureType.esriOverposterPoint;
pBasic.PointPlacementPriorities = pPlacementPoint;
pBasic.PointPlacementOnTop = false;
pBasic.PointPlacementMethod = esriOverposterPointPlacementMethod.esriOnTopPoint;// esriAroundPoint;
// }
//Point a field as a label
ILabelEngineLayerProperties labelField = new LabelEngineLayerProperties() as ILabelEngineLayerProperties;
labelField.Expression = "[name]";
//set postion
labelField.BasicOverposterLayerProperties = pBasic;
//set symbol
labelField.Symbol = pTextSyl;
IAnnotateLayerProperties annoProp = labelField as IAnnotateLayerProperties;
annoPropCol.Add(annoProp);
gLabelLayer.DisplayAnnotation = true;
m_map.Refresh();
}
private void mnuAnnotation_Click(object sender, EventArgs e)
{
IGraphicsContainer pGraphicsContainer = MainMap.Map as IGraphicsContainer;
ILayer pLayer = MainMap.get_Layer(0);
IGeoFeatureLayer pGeoFeatureLayer = pLayer as IGeoFeatureLayer;
// 清空当前图层标注集合
IAnnotateLayerPropertiesCollection pAnnoProps = pGeoFeatureLayer.AnnotationProperties;
pAnnoProps.Clear();
// 建立标注文本符号
stdole.IFontDisp pFont = new stdole.StdFontClass() as stdole.IFontDisp;
pFont.Name = "宋体";
pFont.Size = 9;
IRgbColor pColor = new RgbColorClass();
pColor.Red = 250;
pColor.Blue = 10;
pColor.Green = 50;
ITextSymbol pTextSymbol = new TextSymbolClass();
pTextSymbol.Font = pFont;
pTextSymbol.Color = pColor as IColor;
// 设置标注位置
ILineLabelPosition pPosition = new LineLabelPositionClass();
pPosition.Parallel = false;
pPosition.Perpendicular = false;
ILineLabelPlacementPriorities pPlacement = new LineLabelPlacementPrioritiesClass();
IBasicOverposterLayerProperties pBasic = new BasicOverposterLayerProperties();
pBasic.FeatureType = esriBasicOverposterFeatureType.esriOverposterPolyline;
pBasic.LineLabelPosition = pPosition;
// 新建一个图层标注引擎对象
ILabelEngineLayerProperties pLabelEngine = new LabelEngineLayerPropertiesClass();
pLabelEngine.Symbol = pTextSymbol;
pLabelEngine.BasicOverposterLayerProperties = pBasic;
pLabelEngine.IsExpressionSimple = true;
pLabelEngine.Expression = "[ADCODE93]";
IAnnotateLayerProperties pAnnoLayerProps = pLabelEngine as IAnnotateLayerProperties;
pAnnoProps.Add(pAnnoLayerProps);
pGeoFeatureLayer.DisplayAnnotation = true;
MainMap.ActiveView.PartialRefresh(esriViewDrawPhase.esriViewGraphics, null, null);
}
private void ShowLabel()
{
if (labelOn)
{
if (!this.cbxActiveMap.HasItems || !this.cbxFeatureLayer.HasItems || !this.cbxField.HasItems)
{
return;
}
if (annoPropCol != null)
{
annoPropCol.Clear();
}
labelLayer = this.m_map.Map.get_Layer(this.cbxFeatureLayer.SelectedIndex) as IFeatureLayer;
gLabelLayer = labelLayer as IGeoFeatureLayer;
annoPropCol = gLabelLayer.AnnotationProperties;
ITextSymbol pTextSyl = new TextSymbol();
IFontDisp font = new StdFont() as IFontDisp;
font.Size = 20;
font.Italic = true;
pTextSyl.Font = font;
RgbColor color = new RgbColor();
color.Red = LabelColor.R;
color.Green = LabelColor.G;
color.Blue = LabelColor.B;
pTextSyl.Color = color;
IBasicOverposterLayerProperties pBasic = new BasicOverposterLayerProperties();
IPointPlacementPriorities pPlacementPoint = new PointPlacementPriorities();
pBasic.FeatureType = esriBasicOverposterFeatureType.esriOverposterPoint;
pBasic.PointPlacementPriorities = pPlacementPoint;
pBasic.PointPlacementOnTop = false;
pBasic.PointPlacementMethod = esriOverposterPointPlacementMethod.esriOnTopPoint;
ILabelEngineLayerProperties labelField = new LabelEngineLayerProperties() as ILabelEngineLayerProperties;
//IFeatureClass fClass = ((IFeatureLayer)labelLayer).FeatureClass;
//IFields fields = fClass.Fields;
//String fieldName = fields.get_Field(this.cbxField.SelectedIndex).Name;
string fieldName = (string)cbxField.SelectedItem;
//Console.WriteLine(fields.FindField(fieldName));
labelField.Expression = "[" + fieldName + "]";
//set postion
labelField.BasicOverposterLayerProperties = pBasic;
//set symbol
labelField.Symbol = pTextSyl;
IAnnotateLayerProperties annoProp = labelField as IAnnotateLayerProperties;
annoPropCol.Add(annoProp);
gLabelLayer.DisplayAnnotation = true;
m_map.Refresh();
}
}
private void LayerAnnotation(IGeoFeatureLayer pGeoFeatLyr, string annoField)
{
IGeoFeatureLayer pGeoFeatLayer;
pGeoFeatLayer = pGeoFeatLyr;
IAnnotateLayerPropertiesCollection pAnnoProps;
pAnnoProps = pGeoFeatLyr.AnnotationProperties;
pAnnoProps.Clear();
IAnnotateLayerProperties pAnnoLayerProps;
ILabelEngineLayerProperties pLabelEngine;
ILineLabelPosition pPosition;
ILineLabelPlacementPriorities pPlacement;
IBasicOverposterLayerProperties pBasic;
//'定义标注的字体
ITextSymbol pTextSyl;
pTextSyl = new TextSymbol();
stdole.IFontDisp pFont;
pFont = new stdole.StdFont() as stdole.IFontDisp;
pFont.Name = "仿宋";
pFont.Size = 12;
pFont.Bold = true;
pTextSyl.Font = pFont;
IRgbColor pcolor = new RgbColorClass();
pcolor.Red = 255;
pcolor.Green = 10;
pcolor.Blue = 20;
pTextSyl.Color = pcolor;
pPosition = new LineLabelPosition();
pPosition.Parallel = false;
pPosition.Perpendicular = true;
pPlacement = new LineLabelPlacementPriorities();
pBasic = new BasicOverposterLayerProperties();
pBasic.FeatureType = esriBasicOverposterFeatureType.esriOverposterPolyline;
pBasic.LineLabelPlacementPriorities = pPlacement;
pBasic.LineLabelPosition = pPosition;
pLabelEngine = new LabelEngineLayerProperties() as ILabelEngineLayerProperties;
pLabelEngine.Symbol = pTextSyl;
pLabelEngine.BasicOverposterLayerProperties = pBasic;
//field的形式必须是[fieldname]
pLabelEngine.Expression = annoField;
pAnnoLayerProps = (IAnnotateLayerProperties)pLabelEngine;
pAnnoProps.Add(pAnnoLayerProps);
pGeoFeatLyr.DisplayAnnotation = true;
axMapControl1.ActiveView.PartialRefresh(esriViewDrawPhase.esriViewGraphics, null, null);
}
//标注图层
public void FunLabelFeatureLayer(IFeatureLayer pFeaturelayer, string sLableField, IRgbColor pRGB, ITextSymbol textSymbol)
{
//判断图层是否为空
if (pFeaturelayer == null)
{
return;
}
IGeoFeatureLayer pGeoFeaturelayer = (IGeoFeatureLayer)pFeaturelayer;
IAnnotateLayerPropertiesCollection pAnnoLayerPropsCollection;
pAnnoLayerPropsCollection = pGeoFeaturelayer.AnnotationProperties;
pAnnoLayerPropsCollection.Clear();
//未指定字体颜色则默认为黑色
if (pRGB == null)
{
pRGB = new RgbColor();
pRGB.Red = 0;
pRGB.Green = 0;
pRGB.Blue = 0;
}
IBasicOverposterLayerProperties pBasicOverposterlayerProps = new BasicOverposterLayerProperties();
switch (pFeaturelayer.FeatureClass.ShapeType)//判断图层类型
{
case esriGeometryType.esriGeometryPolygon:
pBasicOverposterlayerProps.FeatureType = esriBasicOverposterFeatureType.esriOverposterPolygon;
break;
case esriGeometryType.esriGeometryPoint:
pBasicOverposterlayerProps.FeatureType = esriBasicOverposterFeatureType.esriOverposterPoint;
break;
case esriGeometryType.esriGeometryPolyline:
pBasicOverposterlayerProps.FeatureType = esriBasicOverposterFeatureType.esriOverposterPolyline;
break;
}
ILabelEngineLayerProperties pLabelEnginelayerProps = new LabelEngineLayerProperties() as ILabelEngineLayerProperties;
pLabelEnginelayerProps.Expression = "[" + sLableField + "]";
pLabelEnginelayerProps.Symbol = textSymbol;
pLabelEnginelayerProps.BasicOverposterLayerProperties = pBasicOverposterlayerProps;
pAnnoLayerPropsCollection.Add((IAnnotateLayerProperties)pLabelEnginelayerProps);
pGeoFeaturelayer.DisplayAnnotation = true;
}
