/// <summary>
/// 定义任务区多边形名称注记
/// </summary>
/// <param name="name"></param>
/// <returns></returns>
public static ITextElement getTextElement(string name)
{
//定义任务区名称符号格式
IRgbColor pColor = new RgbColorClass()
{
Red = 0,
Blue = 255,
Green = 0
};
IFontDisp pFont = new StdFont()
{
Name = "宋体",
Bold = true
} as IFontDisp;
ITextSymbol pTextSymbol = new TextSymbolClass()
{
Color = pColor,
Font = pFont,
Size = 10
};
ITextElement pTextElement = new TextElementClass()
{
Symbol = pTextSymbol,
ScaleText = true,
Text = name
};
return(pTextElement);
}
private static IGridLabel CreateMixedFontGridLabel()
{
IMixedFontGridLabel mixedFontGridLabelClass = new MixedFontGridLabel() as IMixedFontGridLabel;
IGridLabel gridLabel = mixedFontGridLabelClass as IGridLabel;
IFontDisp stdFontClass = new StdFont() as IFontDisp;
stdFontClass.Name = "Arial";
stdFontClass.Size = new decimal(16);
gridLabel.Font = stdFontClass;
gridLabel.Color = CartoHelper.BuildRGB(0, 0, 0);
gridLabel.LabelOffset = 2;
gridLabel.LabelAlignment[esriGridAxisEnum.esriGridAxisLeft] = false;
gridLabel.LabelAlignment[esriGridAxisEnum.esriGridAxisRight] = false;
stdFontClass = new StdFont() as IFontDisp;
stdFontClass.Name = "Arial";
stdFontClass.Size = new decimal(12);
mixedFontGridLabelClass.SecondaryFont = stdFontClass;
mixedFontGridLabelClass.SecondaryColor = CartoHelper.BuildRGB(0, 0, 0);
mixedFontGridLabelClass.NumGroupedDigits = 6;
IFormattedGridLabel formattedGridLabel = mixedFontGridLabelClass as IFormattedGridLabel;
INumericFormat format = new NumericFormat() as INumericFormat;
format.AlignmentOption = esriNumericAlignmentEnum.esriAlignRight;
format.RoundingOption = esriRoundingOptionEnum.esriRoundNumberOfDecimals;
format.RoundingValue = 2;
format.ShowPlusSign = true;
format.UseSeparator = false;
format.ZeroPad = true;
INumericFormat numericFormatClass = format as INumericFormat;
formattedGridLabel.Format = numericFormatClass as INumberFormat;
return(gridLabel);
}
/// <summary>
/// 显示指定图层指定字段的标注
/// </summary>
/// <param name="geoLayer">要设置注标注的图层(IFeatureLayer as IGeoFeatureLayer)</param>
/// <param name="fieldName">显示标注的字段</param>
/// <param name="fontName">标注的字体</param>
/// <param name="size">标注的大小</param>
public static void ShowLabel(this IGeoFeatureLayer geoLayer, string fieldName, string fontName = "宋体", int size = 12)
{
//标注属性集
IAnnotateLayerPropertiesCollection annotateLyrProColl = geoLayer.AnnotationProperties;
annotateLyrProColl.Clear();
//普通标准属性（另一个是Maplex标准属性）
ILabelEngineLayerProperties labelEngine = new LabelEngineLayerPropertiesClass();
labelEngine.Expression = $"[{fieldName}]";
//字体
IFontDisp fontDisp = new StdFont()
{
Name = fontName, Bold = false
} as IFontDisp;
//标注符号
ITextSymbol textSymbol = new TextSymbolClass();
textSymbol.Color = ColorCreate.GetIColor(0, 0, 0);
textSymbol.Font = fontDisp;
textSymbol.Size = size;
labelEngine.Symbol = textSymbol;
//设置同名标注：默认为移除同名标注，应设为每个要素放置一个标注
IBasicOverposterLayerProperties basicOverpLyrPro = labelEngine.BasicOverposterLayerProperties as IBasicOverposterLayerProperties;
basicOverpLyrPro.NumLabelsOption = esriBasicNumLabelsOption.esriOneLabelPerShape;//每个要素放置一个标注
annotateLyrProColl.Add(labelEngine as IAnnotateLayerProperties);
geoLayer.DisplayAnnotation = true;
}
/// <summary>
/// 插入带文字的注记
/// </summary>
/// <param name="point"></param>
/// <param name="mapControl"></param>
/// <param name="text"></param>
/// <returns></returns>
public static IElement DrawSymbolWithText(IPoint point, AxMapControl mapControl, string text)
{
#region 设置样式
IFontDisp pFont = new StdFont()
{
Name = "宋体",
Size = 5
} as IFontDisp;
ITextSymbol pTextSymbol = new TextSymbolClass()
{
Color = GetColor(255, 0, 0),
Font = pFont,
Size = 11
};
#endregion
//设置带注记的元素
ITextElement pTextElment = null;
pTextElment = new TextElementClass()
{
Symbol = pTextSymbol,
ScaleText = true,
Text = text
};
IElement pEle = pTextElment as IElement;
pEle.Geometry = point;
//添加标注
InsertElement(mapControl, pEle, 1);
return(pEle);
}
//添加标注
void itemaddlable_Click(object sender, EventArgs e)
{
// //使用TextElment绘制标注, fieldName为要绘制的属性
//public static void AddLable(AxMapControl axMapControl, ILayer layer, string fieldName)
//{
ILayer layer = Global.mainmap.Map.get_Layer(0);
IRgbColor pColor = new RgbColorClass()
{
Red = 255,
Blue = 0,
Green = 0
};
IFontDisp pFont = new StdFont()
{
Name = "宋体",
Size = 5
} as IFontDisp;
ITextSymbol pTextSymbol = new TextSymbolClass()
{
Color = pColor,
Font = pFont,
Size = 11
};
IGraphicsContainer pGraContainer = Global.mainmap.Map as IGraphicsContainer;
//遍历要标注的要素
IFeatureLayer pFeaLayer = layer as IFeatureLayer;
IFeatureClass pFeaClass = pFeaLayer.FeatureClass;
IFeatureCursor pFeatCur = pFeaClass.Search(null, false);
IFeature pFeature = pFeatCur.NextFeature();
int index = pFeature.Fields.FindField("NAME");//要标注的字段的索引
IEnvelope pEnv = null;
ITextElement pTextElment = null;
IElement pEle = null;
while (pFeature != null)
{
//使用地理对象的中心作为标注的位置
pEnv = pFeature.Extent;
IPoint pPoint = new PointClass();
pPoint.PutCoords(pEnv.XMin + pEnv.Width * 0.5, pEnv.YMin + pEnv.Height * 0.5);
pTextElment = new TextElementClass()
{
Symbol = pTextSymbol,
ScaleText = true,
Text = pFeature.get_Value(index).ToString()
};
pEle = pTextElment as IElement;
pEle.Geometry = pPoint;
//添加标注
pGraContainer.AddElement(pEle, 0);
pFeature = pFeatCur.NextFeature();
}
(Global.mainmap.Map as IActiveView).PartialRefresh(esriViewDrawPhase.esriViewGraphics, null, Global.mainmap.Extent);
}
private void ActiveViewEventsOnAfterDraw(IDisplay display, esriViewDrawPhase phase)
{
if (!_drawFence)
{
return;
}
if (_fenceArray == null || _fenceArray.Count == 0)
{
return;
}
IScreenDisplay paramScreenDisplay = ((IActiveView)_context.FocusMap).ScreenDisplay;
paramScreenDisplay.StartDrawing(paramScreenDisplay.hDC, -2);
for (int i = 0; i < _fenceArray.Count; i++)
{
IGeometry fence = _fenceArray.Element[i];
if (fence.IsEmpty)
{
continue;
}
if (fence is IPolyline)
{
paramScreenDisplay.SetSymbol(_lineSymbol);
paramScreenDisplay.DrawPolyline(fence);
}
else if (fence is IPolygon)
{
paramScreenDisplay.SetSymbol(_fillSymbol);
paramScreenDisplay.DrawPolygon(fence);
}
}
if (_drawPage && _pageInfos != null && _pageInfos.Count > 0)
{
IFontDisp disp = new StdFont() as IFontDisp;
disp.Name = "Arial";
disp.Size = new decimal(16);
foreach (IPrintPageInfo pageInfo in _pageInfos)
{
IGeometry pageBoundary = pageInfo.Boundary;
paramScreenDisplay.SetSymbol(_fillSymbol);
paramScreenDisplay.DrawPolygon(pageBoundary);
_textSymbol = SymbolHelper.CreateTextSymbol(Color.Red, disp, 16, pageInfo.PageName);
paramScreenDisplay.SetSymbol(_textSymbol as ISymbol);
if (!string.IsNullOrEmpty(pageInfo.PageName))
{
IPoint centerPoint = new ESRI.ArcGIS.Geometry.Point();
IEnvelope pEnv = pageBoundary.Envelope;
centerPoint.PutCoords((pEnv.XMin + pEnv.Width / 2.0), pEnv.YMin + pEnv.Height / 2.0);
paramScreenDisplay.DrawText(centerPoint, pageInfo.PageName);
}
}
}
paramScreenDisplay.FinishDrawing();
}
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();
}
public static IFontDisp CreateFont(string pFontName, float pSize)
{
StdFont class2 = new StdFont();
class2.Name = pFontName;
class2.Size = Convert.ToDecimal(pSize);
class2.Bold = false;
class2.Italic = false;
class2.Underline = false;
class2.Strikethrough = false;
return(class2 as IFontDisp);
}
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();
}
}
public static IFontDisp CreateFont(string pFontName, float pSize, bool pBold, bool pItalic, bool pUnderline,
bool pStroke)
{
StdFont class2 = new StdFont();
class2.Name = pFontName;
class2.Size = Convert.ToDecimal(pSize);
class2.Bold = pBold;
class2.Italic = pItalic;
class2.Underline = pUnderline;
class2.Strikethrough = pStroke;
return(class2 as IFontDisp);
}
//给图片加标签
private void Label(AxMapControl IN_Axmapcontrols, IEnvelope pEnv, ResultItem r, string name, int fontsize)
{
IGraphicsContainer pGraContainer = (IGraphicsContainer)IN_Axmapcontrols.Map;
pGraContainer.DeleteAllElements();
IPoint pPoint = new PointClass();
pPoint.PutCoords(pEnv.XMin, pEnv.YMin + pEnv.Height * 0.15);
IRgbColor pColor = new RgbColorClass()
{
Red = 255,
Blue = 0,
Green = 255
};
IFontDisp pFont = new StdFont()
{
Name = "宋体",
Bold = true
} as IFontDisp;
ITextSymbol pTextSymbol = new TextSymbolClass()
{
Color = pColor,
Font = pFont,
HorizontalAlignment = esriTextHorizontalAlignment.esriTHALeft,
Size = 15
};
ITextElement pTextElement = new TextElementClass()
{
Symbol = pTextSymbol,
ScaleText = true,
//Size = 15, //若用缩小图则设置为4，大图为15
//Text = "河名：" + RiverID + "\n" + "镇名：" + RegionID + "\n" + address +
//"\n" + "经度：" + Convert.ToString(lng) + "\n" + "纬度：" + Convert.ToString(Lat)
//Text = "图号：" + r.Figure + "\n" + "镇名：" + r.RegionID + "\n" + "位置：" + address + " " + "\n"
//+ "经纬度：" + r.Location.X + " " + r.Location.Y + "\n"
Size = fontsize, //若用缩小图则设置为4，大图为15
Text = name
};
IElement pEle = (IElement)pTextElement;
pEle.Geometry = pPoint;
pGraContainer.AddElement(pEle, 0);
}
// 标题
private void AddTitle(String title)
{
IGraphicsContainer graphicsContainer = axPageLayoutControl1.PageLayout as IGraphicsContainer;
IEnvelope envelope = new EnvelopeClass();
double x = 8;
double y = 22;
envelope.PutCoords(x, y, x + 5, y + 5);
IRgbColor pColor = new RgbColorClass()
{
Red = 0,
Blue = 0,
Green = 0
};
IFontDisp pFont = new StdFont()
{
Name = "宋体",
Bold = true
} as IFontDisp;
ITextSymbol pTextSymbol = new TextSymbolClass()
{
Color = pColor,
Font = pFont,
Size = 25
};
ITextElement pTextElement = new TextElementClass()
{
Symbol = pTextSymbol,
ScaleText = true,
Text = title
};
IElement element = pTextElement as IElement;
element.Geometry = envelope;
graphicsContainer.AddElement(element, 0);
axPageLayoutControl1.Refresh();
}
public StdFont Clone()
{
StdFont tempFont = new StdFont();
tempFont.Bold = Bold;
tempFont.Italic = Italic;
tempFont.Name = Name;
tempFont.Size = Size;
tempFont.StrikeThrough = StrikeThrough;
tempFont.UnderLine = UnderLine;
tempFont.CharSet = CharSet;
tempFont.Weight = Weight;
return tempFont;
}
