private void AddLabel(string StrDisplayField)
{
pGeoFeatLayer.DisplayAnnotation = false;
pMapControl.ActiveView.Refresh();
pGeoFeatLayer.DisplayField = StrDisplayField;
IAnnotateLayerPropertiesCollection pAnnoProps = null;
pAnnoProps = pGeoFeatLayer.AnnotationProperties;
ILineLabelPosition pPosition = null;
pPosition = new LineLabelPositionClass();
pPosition.Parallel = true;
pPosition.Above = true;
ILineLabelPlacementPriorities pPlacement = new LineLabelPlacementPrioritiesClass();
IBasicOverposterLayerProperties4 pBasic = new BasicOverposterLayerPropertiesClass();
pBasic.FeatureType = esriBasicOverposterFeatureType.esriOverposterPolyline;
pBasic.LineLabelPlacementPriorities = pPlacement;
pBasic.LineLabelPosition = pPosition;
pBasic.BufferRatio = 0;
pBasic.FeatureWeight = esriBasicOverposterWeight.esriHighWeight;
pBasic.NumLabelsOption = esriBasicNumLabelsOption.esriOneLabelPerPart;
//pBasic.PlaceOnlyInsidePolygon = true;//仅在地物内部显示标注 deleted by chulili s20111018 界面上并没有这项设置，这句话应注释掉，否则像是错误
ILabelEngineLayerProperties pLabelEngine = null;
pLabelEngine = new LabelEngineLayerPropertiesClass();
pLabelEngine.BasicOverposterLayerProperties = pBasic as IBasicOverposterLayerProperties;
pLabelEngine.Expression = "[" + StrDisplayField + "]";
ITextSymbol pTextSymbol = null;
pTextSymbol = pLabelEngine.Symbol;
System.Drawing.Font pFont = null;
pFont = LabelText.Font;
IFontDisp pFontDisp = ESRI.ArcGIS.ADF.Converter.ToStdFont(pFont);
pTextSymbol.Font = pFontDisp;
IRgbColor pColor = new RgbColorClass();
pColor.Red = Convert.ToInt32(LabelText.ForeColor.R);
pColor.Green = Convert.ToInt32(LabelText.ForeColor.G);
pColor.Blue = Convert.ToInt32(LabelText.ForeColor.B);
pTextSymbol.Color = pColor as IColor;
pLabelEngine.Symbol = pTextSymbol;
IAnnotateLayerProperties pAnnoLayerProps = null;
pAnnoLayerProps = pLabelEngine as IAnnotateLayerProperties;
pAnnoLayerProps.LabelWhichFeatures = esriLabelWhichFeatures.esriAllFeatures;
pAnnoProps.Clear();
pAnnoProps.Add(pAnnoLayerProps);
pGeoFeatLayer.DisplayAnnotation = true;
pMapControl.ActiveView.Refresh();
}
/// <summary>
/// Annotate Layer
/// </summary>
/// <param name="layer"></param>
/// <param name="labelField"></param>
/// <author>Shen Yongyuan</author>
/// <date>20091111</date>
public static void AnnotateLayer(ILayer layer, string labelField)
{
IFeatureLayer feaLayer = layer as IFeatureLayer;
IGeoFeatureLayer geoFeaLayer = layer as IGeoFeatureLayer;
IAnnotateLayerPropertiesCollection pAnnoProps = geoFeaLayer.AnnotationProperties;
pAnnoProps.Clear();
ITextSymbol pTextSyl = new TextSymbolClass();
Font fnt = new System.Drawing.Font("宋体", 10f, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point);
pTextSyl.Size = 10;
//pTextSyl.Font = ESRI.ArcGIS.ADF.COMSupport.OLE.GetIFontDispFromFont(fnt) as stdole.IFontDisp;
pTextSyl.Color = Town.ArcGIS.Color.ToEsriColor(System.Drawing.Color.Black);
IBasicOverposterLayerProperties pBasic = new BasicOverposterLayerPropertiesClass();
if (feaLayer.FeatureClass.ShapeType == esriGeometryType.esriGeometryPolygon)
{
ILineLabelPosition pPosition = new LineLabelPositionClass();
ILineLabelPlacementPriorities pPlacementLine = new LineLabelPlacementPrioritiesClass();
pBasic.FeatureType = esriBasicOverposterFeatureType.esriOverposterPolygon;
pBasic.LineLabelPlacementPriorities = pPlacementLine;
pBasic.LineLabelPosition = pPosition;
}
else if (feaLayer.FeatureClass.ShapeType == esriGeometryType.esriGeometryPoint)
{
IPointPlacementPriorities pPlacementPoint = new PointPlacementPrioritiesClass();
pBasic.FeatureType = esriBasicOverposterFeatureType.esriOverposterPoint;
pBasic.PointPlacementPriorities = pPlacementPoint;
pBasic.PointPlacementOnTop = false;
pBasic.PointPlacementMethod = esriOverposterPointPlacementMethod.esriAroundPoint;
}
else if (feaLayer.FeatureClass.ShapeType == esriGeometryType.esriGeometryPolyline)
{
ILineLabelPosition pPosition = new LineLabelPositionClass();
ILineLabelPlacementPriorities pPlacementLine = new LineLabelPlacementPrioritiesClass();
pBasic.FeatureType = esriBasicOverposterFeatureType.esriOverposterPolyline;
pBasic.LineLabelPlacementPriorities = pPlacementLine;
pBasic.LineLabelPosition = pPosition;
}
pBasic.LabelWeight = esriBasicOverposterWeight.esriHighWeight;
pBasic.FeatureWeight = esriBasicOverposterWeight.esriNoWeight;
ILabelEngineLayerProperties pLabelEngine = new LabelEngineLayerPropertiesClass();
pLabelEngine.Symbol = pTextSyl;
pLabelEngine.BasicOverposterLayerProperties = pBasic;
pLabelEngine.Expression = "[" + labelField + "]";
IAnnotateLayerProperties pAnnoLayerProps = pLabelEngine as IAnnotateLayerProperties;
pAnnoProps.Add(pAnnoLayerProps);
geoFeaLayer.DisplayAnnotation = true;
}
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);
}
/// <summary>
/// 改变一个图层的标注符号和标注字段
/// </summary>
/// <param name="feaLayer"></param>
private void ChangeLayerAnno(IFeatureLayer feaLayer)
{
IGeoFeatureLayer geoLayer = feaLayer as IGeoFeatureLayer;
if (geoLayer == null)
{
return;
}
geoLayer.AnnotationProperties.Clear();
RgbColorClass color = new RgbColorClass();
color.Red = 255;
color.Blue = 0;
color.Green = 0;
TextSymbolClass txtSymbol = new TextSymbolClass();
stdole.StdFontClass font = new stdole.StdFontClass();
font.Name = "黑体";
font.Size = 12;
txtSymbol.Font = font as stdole.IFontDisp;
txtSymbol.Color = color;
LineLabelPositionClass linePos = new LineLabelPositionClass();
linePos.Parallel = false;
linePos.Perpendicular = true;
linePos.Above = true;
LineLabelPlacementPrioritiesClass linePlac = new LineLabelPlacementPrioritiesClass();
BasicOverposterLayerPropertiesClass basOve = new BasicOverposterLayerPropertiesClass();
//不屏蔽这句有些线图层的标注不显示
//basOve.FeatureType = esriBasicOverposterFeatureType.esriOverposterPolyline;
basOve.LineLabelPosition = linePos;
basOve.LineLabelPlacementPriorities = linePlac;
LabelEngineLayerPropertiesClass labelProp = new LabelEngineLayerPropertiesClass();
labelProp.BasicOverposterLayerProperties = basOve;
labelProp.Symbol = txtSymbol;
labelProp.Expression = "[" + feaLayer.DisplayField + "]";
geoLayer.AnnotationProperties.Add(labelProp);
}
public void showAnnotationByScale()
{
IMap pMap = axMapControl.Map;
IFeatureLayer pFeaturelayer = pMap.get_Layer(0) as IFeatureLayer;
IGeoFeatureLayer pGeoFeatureLayer = pFeaturelayer as IGeoFeatureLayer;
//创建标注集接口，可以对标注进行添加、删除、查询、排序等操作
IAnnotateLayerPropertiesCollection pAnnotateLayerPropertiesCollection = new AnnotateLayerPropertiesCollectionClass();
pAnnotateLayerPropertiesCollection = pGeoFeatureLayer.AnnotationProperties;
pAnnotateLayerPropertiesCollection.Clear();
//创建标注的颜色
IRgbColor pRgbColor = new RgbColorClass();
pRgbColor.Red = 255;
pRgbColor.Green = 0;
pRgbColor.Blue = 0;
//创建标注的字体样式
ITextSymbol pTextSymbol = new TextSymbolClass();
pTextSymbol.Color = pRgbColor;
pTextSymbol.Size = 12;
pTextSymbol.Font.Name = "宋体";
//定义 ILineLabelPosition接口，用来管理line features的标注属性，指定标注和线要素的位置关系
ILineLabelPosition pLineLabelPosition = new LineLabelPositionClass();
pLineLabelPosition.Parallel = false;
pLineLabelPosition.Perpendicular = true;
pLineLabelPosition.InLine = true;
//定义 ILineLabelPlacementPriorities接口用来控制标注冲突
ILineLabelPlacementPriorities pLineLabelPlacementPriorities = new LineLabelPlacementPrioritiesClass();
pLineLabelPlacementPriorities.AboveStart = 5;
pLineLabelPlacementPriorities.BelowAfter = 4;
//定义 IBasicOverposterLayerProperties 接口实现 LineLabelPosition 和 LineLabelPlacementPriorities对象的控制
IBasicOverposterLayerProperties pBasicOverposterLayerProperties = new BasicOverposterLayerPropertiesClass();
pBasicOverposterLayerProperties.LineLabelPlacementPriorities = pLineLabelPlacementPriorities;
pBasicOverposterLayerProperties.LineLabelPosition = pLineLabelPosition;
pBasicOverposterLayerProperties.FeatureType = esriBasicOverposterFeatureType.esriOverposterPolygon;
//创建标注对象
ILabelEngineLayerProperties pLabelEngineLayerProperties = new LabelEngineLayerPropertiesClass();
//设置标注符号
pLabelEngineLayerProperties.Symbol = pTextSymbol;
pLabelEngineLayerProperties.BasicOverposterLayerProperties = pBasicOverposterLayerProperties;
//声明标注的Expression是否为Simple
pLabelEngineLayerProperties.IsExpressionSimple = true;
//设置标注字段
pLabelEngineLayerProperties.Expression = "[DIQU]";
//定义IAnnotateLayerTransformationProperties 接口用来控制feature layer的display of dynamic labels
IAnnotateLayerTransformationProperties pAnnotateLayerTransformationProperties = pLabelEngineLayerProperties as IAnnotateLayerTransformationProperties;
//设置标注参考比例尺
pAnnotateLayerTransformationProperties.ReferenceScale = 500000;
//定义IAnnotateLayerProperties接口，决定FeatureLayer动态标注信息
IAnnotateLayerProperties pAnnotateLayerProperties = pLabelEngineLayerProperties as IAnnotateLayerProperties;
//设置显示标注最大比例尺
pAnnotateLayerProperties.AnnotationMaximumScale = 500000;
//设置显示标注的最小比例
pAnnotateLayerProperties.AnnotationMinimumScale = 25000000;
//决定要标注的要素
pAnnotateLayerProperties.WhereClause = "DIQU<>'宿州市'";
//将创建好的标注对象添加到标注集对象中
pAnnotateLayerPropertiesCollection.Add(pAnnotateLayerProperties);
//声明标注是否显示
pGeoFeatureLayer.DisplayAnnotation = true;
//刷新视图
this.axMapControl.Refresh();
}
private void btn_OK_Click(object sender, EventArgs e)
{
IGeoFeatureLayer pGeoFeatureLayer = (IGeoFeatureLayer)m_FeatureLayer;
//清除原有注记
pGeoFeatureLayer.DisplayAnnotation = false;
m_MapControl.Refresh(esriViewDrawPhase.esriViewBackground, null, null);
//得到图层的标注属性集合对象
IAnnotateLayerPropertiesCollection pAnnoProps = pGeoFeatureLayer.AnnotationProperties;
//清空这个集合内的对象
pAnnoProps.Clear();
IAnnotateLayerProperties pAnnoLayerProps;
ILineLabelPlacementPriorities pPlacement;
ILineLabelPosition pPosition;
IBasicOverposterLayerProperties pBasic;
ILabelEngineLayerProperties pLabelEngine;
//设置文本属性
stdole.IFontDisp pFont;
pFont = new stdole.StdFontClass() as stdole.IFontDisp;
pFont.Name = lbl_PreviewFont.Font.Name;
pFont.Italic = lbl_PreviewFont.Font.Italic;
pFont.Underline = lbl_PreviewFont.Font.Underline;
pFont.Bold = lbl_PreviewFont.Font.Bold;
pFont.Size = (decimal)lbl_PreviewFont.Font.Size;
pFont.Strikethrough = lbl_PreviewFont.Font.Strikeout;
IRgbColor pRGB = new RgbColorClass();
pRGB.Red = (int)lbl_PreviewFont.ForeColor.R;
pRGB.Green = (int)lbl_PreviewFont.ForeColor.G;
pRGB.Blue = (int)lbl_PreviewFont.ForeColor.B;
ITextSymbol pTextSymbol = new TextSymbolClass();
pTextSymbol.Size = lbl_PreviewFont.Font.Size;
pTextSymbol.Font = pFont;
pTextSymbol.Color = pRGB;
//设置注记文本的位置
pPosition = new LineLabelPositionClass();
pPosition.Parallel = false;
pPosition.Perpendicular = true;
pPlacement = new LineLabelPlacementPrioritiesClass();
pBasic = new BasicOverposterLayerPropertiesClass();
pBasic.FeatureType = esriBasicOverposterFeatureType.esriOverposterPolyline;
pBasic.LineLabelPosition = pPosition;
//新建一个图层注记引擎对象，并设置它的属性
pLabelEngine = new LabelEngineLayerPropertiesClass();
pLabelEngine.Symbol = pTextSymbol;
pLabelEngine.BasicOverposterLayerProperties = pBasic;
//设置注记字段
pLabelEngine.Expression = "[" + cbx_Field.SelectedItem.ToString() + "]";
pAnnoLayerProps = (IAnnotateLayerProperties)pLabelEngine;
pAnnoProps.Add(pAnnoLayerProps);
pGeoFeatureLayer.DisplayAnnotation = true;
m_MapControl.Refresh(esriViewDrawPhase.esriViewBackground, null, null);
}
/// <summary>
/// Adds the layer lable.
/// </summary>
/// <param name="pMap">The p map.</param>
/// <param name="layer">The layer.</param>
/// <param name="fieldName">Name of the field.</param>
/// <param name="pTextSymbol">The p text symbol.</param>
/// <param name="dRefScale">The d reference scale.</param>
public static void AddLayerLable(IMap pMap, ILayer layer, string fieldName, ITextSymbol pTextSymbol, double dRefScale)
{
IGeoFeatureLayer geoFeatureLayer = layer as IGeoFeatureLayer;
IAnnotateLayerPropertiesCollection annotationProperties = geoFeatureLayer.AnnotationProperties;
annotationProperties.Clear();
ILineLabelPosition lineLabelPosition = new LineLabelPositionClass
{
Parallel = false,
Perpendicular = false,
InLine = true,
OnTop = true,
Above = false,
Horizontal = true
};
LineLabelPlacementPrioritiesClass lineLabelPlacementPrioritiesClass = new LineLabelPlacementPrioritiesClass();
lineLabelPlacementPrioritiesClass.AboveStart = 5;
lineLabelPlacementPrioritiesClass.BelowAfter = 4;
IBasicOverposterLayerProperties basicOverposterLayerProperties = new BasicOverposterLayerPropertiesClass
{
LineLabelPosition = lineLabelPosition
};
ILabelEngineLayerProperties labelEngineLayerProperties;
if (pMap.AnnotationEngine.Name.Equals("Esri Maplex Label Engine", System.StringComparison.CurrentCultureIgnoreCase))
{
labelEngineLayerProperties = new MaplexLabelEngineLayerPropertiesClass();
IMaplexOverposterLayerProperties maplexOverposterLayerProperties = new MaplexOverposterLayerPropertiesClass();
IFeatureLayer featureLayer = layer as IFeatureLayer;
switch (featureLayer.FeatureClass.ShapeType)
{
case esriGeometryType.esriGeometryPoint:
maplexOverposterLayerProperties.FeatureType = esriBasicOverposterFeatureType.esriOverposterPoint;
maplexOverposterLayerProperties.PointPlacementMethod = esriMaplexPointPlacementMethod.esriMaplexAroundPoint;
break;
case esriGeometryType.esriGeometryPolyline:
maplexOverposterLayerProperties.FeatureType = esriBasicOverposterFeatureType.esriOverposterPolyline;
maplexOverposterLayerProperties.LinePlacementMethod = esriMaplexLinePlacementMethod.esriMaplexCenteredStraightOnLine;
break;
case esriGeometryType.esriGeometryPolygon:
maplexOverposterLayerProperties.FeatureType = esriBasicOverposterFeatureType.esriOverposterPolygon;
maplexOverposterLayerProperties.PolygonPlacementMethod = esriMaplexPolygonPlacementMethod.esriMaplexHorizontalInPolygon;
break;
}
maplexOverposterLayerProperties.CanRemoveOverlappingLabel = false;
maplexOverposterLayerProperties.RepeatLabel = false;
(labelEngineLayerProperties as ILabelEngineLayerProperties2).OverposterLayerProperties = (maplexOverposterLayerProperties as IOverposterLayerProperties);
IMapOverposter mapOverposter = pMap as IMapOverposter;
IOverposterProperties overposterProperties = mapOverposter.OverposterProperties;
IMaplexOverposterProperties maplexOverposterProperties = overposterProperties as IMaplexOverposterProperties;
maplexOverposterProperties.LabelLargestPolygon = false;
}
else
{
labelEngineLayerProperties = new LabelEngineLayerPropertiesClass();
labelEngineLayerProperties.BasicOverposterLayerProperties = basicOverposterLayerProperties;
}
labelEngineLayerProperties.Symbol = pTextSymbol;
labelEngineLayerProperties.IsExpressionSimple = true;
labelEngineLayerProperties.Expression = "[" + fieldName + "]";
IAnnotateLayerProperties item = labelEngineLayerProperties as IAnnotateLayerProperties;
if (dRefScale != -1.0)
{
IAnnotateLayerTransformationProperties annotateLayerTransformationProperties = labelEngineLayerProperties as IAnnotateLayerTransformationProperties;
annotateLayerTransformationProperties.ReferenceScale = dRefScale;
}
annotationProperties.Add(item);
geoFeatureLayer.DisplayAnnotation = true;
}
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;
}
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;
}
}
private void btnAnno_Click(object sender, EventArgs e)
{
IGeoFeatureLayer pGeoFeatLyr = this.mainMapControl.get_Layer(0) as IGeoFeatureLayer;
//获得AnnotateLayerPropertiesCollection
IAnnotateLayerPropertiesCollection pAnnoLyrProCollection = pGeoFeatLyr.AnnotationProperties;
pAnnoLyrProCollection.Clear();
//创建并设置TextSymbol
ITextSymbol pTextSymbol = new TextSymbolClass();
System.Drawing.Font pFont = new System.Drawing.Font("Castellar", 15.0F);
//pTextSymbol.Font = ESRI.ArcGIS.Utility.COMSupport.OLE.GetIFontDispFromFont(pFont) as stdole.IFontDisp;//转换.NET的Font
pTextSymbol.Color = getRGBColor(255, 0, 0);
//创建LineLabelPosition
ILineLabelPosition pLineLabelPosition = new LineLabelPositionClass();
pLineLabelPosition.Parallel = false;
pLineLabelPosition.Perpendicular = true;
//创建LineLabelPlacementPriorities
ILineLabelPlacementPriorities pLineLablePlacementPriorities = new LineLabelPlacementPrioritiesClass();
//创建BasicOverposterLayerProperties
IBasicOverposterLayerProperties pBasicOverposterLayerProperties = new BasicOverposterLayerPropertiesClass();
pBasicOverposterLayerProperties.FeatureType = esriBasicOverposterFeatureType.esriOverposterPolyline;
pBasicOverposterLayerProperties.LineLabelPlacementPriorities = pLineLablePlacementPriorities;
pBasicOverposterLayerProperties.LineLabelPosition = pLineLabelPosition;
//创建LabelEngineLayerProperties
ILabelEngineLayerProperties pLabelEnginLayerProperties = new LabelEngineLayerPropertiesClass();
pLabelEnginLayerProperties.Symbol = pTextSymbol;
pLabelEnginLayerProperties.BasicOverposterLayerProperties = pBasicOverposterLayerProperties;
pLabelEnginLayerProperties.Expression = "[NAME]";
IAnnotateLayerProperties pAnnoLyrPro = pLabelEnginLayerProperties as IAnnotateLayerProperties;
pAnnoLyrProCollection.Add(pAnnoLyrPro);//添加,关键
pGeoFeatLyr.DisplayAnnotation = true;//确定显示
this.mainMapControl.Refresh();
}
private void AddLabel(string StrDisplayField)
{
pGeoFeatLayer.DisplayAnnotation = false;
pMapControl.ActiveView.Refresh();
pGeoFeatLayer.DisplayField = StrDisplayField;
IAnnotateLayerPropertiesCollection pAnnoProps = null;
pAnnoProps = pGeoFeatLayer.AnnotationProperties;
ILineLabelPosition pPosition = null;
pPosition = new LineLabelPositionClass();
pPosition.Parallel = true;
pPosition.Above = true;
ILineLabelPlacementPriorities pPlacement = new LineLabelPlacementPrioritiesClass();
IBasicOverposterLayerProperties4 pBasic = new BasicOverposterLayerPropertiesClass();
pBasic.FeatureType = esriBasicOverposterFeatureType.esriOverposterPolyline;
pBasic.LineLabelPlacementPriorities = pPlacement;
pBasic.LineLabelPosition = pPosition;
pBasic.BufferRatio = 0;
pBasic.FeatureWeight = esriBasicOverposterWeight.esriHighWeight;
if (this.rdbPerName.Checked)
{
pBasic.NumLabelsOption = esriBasicNumLabelsOption.esriOneLabelPerName; //每个名称标注一次
}
else if (this.rdbPerPart.Checked)
{
pBasic.NumLabelsOption = esriBasicNumLabelsOption.esriOneLabelPerPart; //每个部分标注一次
}
else
{
pBasic.NumLabelsOption = esriBasicNumLabelsOption.esriOneLabelPerShape; //每个地物标注一次
}
//pBasic.NumLabelsOption = esriBasicNumLabelsOption.esriNoLabelRestrictions ;
//pBasic.PlaceOnlyInsidePolygon = true; //仅在地物内部显示标注 deleted by chulili s20111018 界面上并没有这项设置，这句话应注释掉，否则像是错误
ILabelEngineLayerProperties pLabelEngine = null;
pLabelEngine = new LabelEngineLayerPropertiesClass();
pLabelEngine.BasicOverposterLayerProperties = pBasic as IBasicOverposterLayerProperties;
pLabelEngine.Expression = "[" + StrDisplayField + "]";
ITextSymbol pTextSymbol = null;
pTextSymbol = pLabelEngine.Symbol;
System.Drawing.Font pFont = null;
pFont = LabelText.Font;
IFontDisp pFontDisp = ESRI.ArcGIS.ADF.Converter.ToStdFont(pFont);
pTextSymbol.Font = pFontDisp;
IRgbColor pColor = new RgbColorClass();
pColor.Red = Convert.ToInt32(LabelText.ForeColor.R);
pColor.Green = Convert.ToInt32(LabelText.ForeColor.G);
pColor.Blue = Convert.ToInt32(LabelText.ForeColor.B);
pTextSymbol.Color = pColor as IColor;
pLabelEngine.Symbol = pTextSymbol;
IAnnotateLayerProperties pAnnoLayerProps = null;
pAnnoLayerProps = pLabelEngine as IAnnotateLayerProperties;
pAnnoLayerProps.LabelWhichFeatures = esriLabelWhichFeatures.esriAllFeatures;
//最大\最小比例尺
try
{
if (this.txtMaxLabelScale.Text.Trim() != "")
{
pAnnoLayerProps.AnnotationMaximumScale = Convert.ToDouble(this.txtMaxLabelScale.Text);
}
if (this.txtMinLabelScale.Text.Trim() != "")
{
pAnnoLayerProps.AnnotationMinimumScale = Convert.ToDouble(this.txtMinLabelScale.Text);
}
}
catch (Exception err)
{}
pAnnoProps.Clear();
pAnnoProps.Add(pAnnoLayerProps);
pGeoFeatLayer.DisplayAnnotation = this.chkIsLabel.Checked;
(pMapControl.Map as IActiveView).Refresh();
}
public void showAnnotationByScale()
{
IMap pMap = axMapControl.Map;
IFeatureLayer pFeaturelayer = pMap.get_Layer(1) as IFeatureLayer;
IGeoFeatureLayer pGeoFeatureLayer = pFeaturelayer as IGeoFeatureLayer;
//创建标注集接口，可以对标注进行添加、删除、查询、排序等操作
IAnnotateLayerPropertiesCollection pAnnotateLayerPropertiesCollection = new AnnotateLayerPropertiesCollectionClass();
pAnnotateLayerPropertiesCollection = pGeoFeatureLayer.AnnotationProperties;
pAnnotateLayerPropertiesCollection.Clear();
//创建标注的颜色
IRgbColor pRgbColor = new RgbColorClass();
pRgbColor.Red = 255;
pRgbColor.Green = 0;
pRgbColor.Blue = 0;
//创建标注的字体样式
ITextSymbol pTextSymbol = new TextSymbolClass();
pTextSymbol.Color = pRgbColor;
pTextSymbol.Size = 12;
pTextSymbol.Font.Name = "宋体";
//定义 ILineLabelPosition接口，用来管理line features的标注属性，指定标注和线要素的位置关系
ILineLabelPosition pLineLabelPosition = new LineLabelPositionClass();
pLineLabelPosition.Parallel = false;
pLineLabelPosition.Perpendicular = true;
pLineLabelPosition.InLine = true;
//定义 ILineLabelPlacementPriorities接口用来控制标注冲突
ILineLabelPlacementPriorities pLineLabelPlacementPriorities = new LineLabelPlacementPrioritiesClass();
pLineLabelPlacementPriorities.AboveStart = 5;
pLineLabelPlacementPriorities.BelowAfter = 4;
//定义 IBasicOverposterLayerProperties 接口实现 LineLabelPosition 和 LineLabelPlacementPriorities对象的控制
IBasicOverposterLayerProperties pBasicOverposterLayerProperties = new BasicOverposterLayerPropertiesClass();
pBasicOverposterLayerProperties.LineLabelPlacementPriorities = pLineLabelPlacementPriorities;
pBasicOverposterLayerProperties.LineLabelPosition = pLineLabelPosition;
pBasicOverposterLayerProperties.FeatureType = esriBasicOverposterFeatureType.esriOverposterPolygon;
//创建标注对象
ILabelEngineLayerProperties pLabelEngineLayerProperties = new LabelEngineLayerPropertiesClass();
//设置标注符号
pLabelEngineLayerProperties.Symbol = pTextSymbol;
pLabelEngineLayerProperties.BasicOverposterLayerProperties = pBasicOverposterLayerProperties;
//声明标注的Expression是否为Simple
pLabelEngineLayerProperties.IsExpressionSimple = true;
//设置标注字段
pLabelEngineLayerProperties.Expression = "[DIQU]";
//定义IAnnotateLayerTransformationProperties 接口用来控制feature layer的display of dynamic labels
IAnnotateLayerTransformationProperties pAnnotateLayerTransformationProperties = pLabelEngineLayerProperties as IAnnotateLayerTransformationProperties;
//设置标注参考比例尺
pAnnotateLayerTransformationProperties.ReferenceScale = 500000;
//定义IAnnotateLayerProperties接口，决定FeatureLayer动态标注信息
IAnnotateLayerProperties pAnnotateLayerProperties = pLabelEngineLayerProperties as IAnnotateLayerProperties;
//设置显示标注最大比例尺
pAnnotateLayerProperties.AnnotationMaximumScale = 500000;
//设置显示标注的最小比例
pAnnotateLayerProperties.AnnotationMinimumScale = 25000000;
//决定要标注的要素
pAnnotateLayerProperties.WhereClause = "DIQU<>'宿州市'";
//将创建好的标注对象添加到标注集对象中
pAnnotateLayerPropertiesCollection.Add(pAnnotateLayerProperties);
//声明标注是否显示
pGeoFeatureLayer.DisplayAnnotation = true;
//刷新视图
this.axMapControl.Refresh();
}
