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[转] Symbol对象

2017-11-13 1708
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简介：

GIS中的离散实体有三种：点、线、面，在ArcEngine中用三种符号对应表示，分别是：MarkSymbol、LineSymbol和FillSymbol。此外还有TextSymbol用于文字标注，3DChart用来显示饼图等三维对象。

所有符号都实现ISymbol和IMapLevel接口，ISymbol定义一个符号对象的基本属性和方法，IMapLevel定义属性可以确定符号显示的图层，和图层类似，用于确定符号的叠加顺序。

 

一、MarkerSymbol对象

　　MarkerSymbol对象用于修饰点对象符号，拥有12个子类：

Classes Description
ArrowMarkerSymbol 箭头形式符号，箭头的样式只有一个：esriAMSPlain
BarChartSymbol Defines a bar chart symbol.
CharacterMarker3DSymbol (3DAnalyst) 3D Character Marker Symbol component.
CharacterMarkerSymbol 字符形式符号，用于将一个点要素显示为字符状。Characterindex属性用来确定显示的字符
Marker3DSymbol (3DAnalyst) 3D Marker Symbol component.
MultiLayerMarkerSymbol 使用多个符号进行叠加生成新符号。
PictureMarkerSymbol 以图片为背景的符号，把一个点对象的外形表示为一个位图，可以指定Picture或者使用CreateMarkSymbolFromFile获取一张位图
PieChartSymbol Defines a pie chart symbol.
SimpleMarker3DSymbol (3DAnalyst) Simple 3D Marker Symbol component.
SimpleMarkerSymbol 简单类型点符号，有五种类型（esriSMSCircle、esriSMSSquare、esriSMSCross、esriSMSX和esriSMSDiamond）
StackedChartSymbol Defines a stacked chart symbol.
TextMarkerSymbol (TrackingAnalyst)

Class used to create a text marker symbol used to symbolize point geometries.

　　都实现IMarkerSymbol接口，定义了Angle、Color、Size、Xoffset、Yoffset。

 

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private  void  simpleLineSymbolToolStripMenuItem_Click( object  sender, EventArgs e)
{
     ISimpleLineSymbol simpleLineSymbol =  new  SimpleLineSymbolClass();
     simpleLineSymbol.Style = esriSimpleLineStyle.esriSLSDashDotDot;
     IPolyline polyline =  new  PolylineClass();
     IPoint point =  new  PointClass();
     point.PutCoords(1, 1);
     polyline.FromPoint = point;
     point.PutCoords(10, 10);
     polyline.ToPoint = point;
     simpleLineSymbol.Width = 10;
     IRgbColor rgbColor = getRGB(255, 0, 0);
     simpleLineSymbol.Color = rgbColor;
     ISymbol symbol = simpleLineSymbol  as  ISymbol;
     symbol.ROP2 = esriRasterOpCode.esriROPNotXOrPen;
     IActiveView activeView =  this .axMapControl1.ActiveView;
     //用activeView.ScreenDisplay进行画图
     activeView.ScreenDisplay.StartDrawing(activeView.ScreenDisplay.hDC, ( short )esriScreenCache.esriNoScreenCache);
     activeView.ScreenDisplay.SetSymbol(symbol);
     activeView.ScreenDisplay.DrawPolyline(polyline  as  IGeometry);
     activeView.ScreenDisplay.FinishDrawing();
     activeView.ScreenDisplay.FinishDrawing(); //释放资源
}
 
private  void  cartographicLineSymbolToolStripMenuItem_Click( object  sender, EventArgs e)
{
     ICartographicLineSymbol cartographicLineSymbol =  new  CartographicLineSymbolClass(); //制图线符号
     cartographicLineSymbol.Cap = esriLineCapStyle.esriLCSButt;
     cartographicLineSymbol.Join = esriLineJoinStyle.esriLJSBevel; //连接方式
     cartographicLineSymbol.Width = 10;
     cartographicLineSymbol.MiterLimit = 4; //Size threshold(阈值) for showing mitered line joins.
     ILineProperties lineProperties;
     lineProperties = cartographicLineSymbol  as  ILineProperties;
     lineProperties.Offset = 0;
     double [] dob =  new  double [6];
     dob[0] = 0;
     dob[1] = 1;
     dob[2] = 2;
     dob[3] = 3;
     dob[4] = 4;
     dob[5] = 5;
     ITemplate template =  new  TemplateClass(); //定义模版
     template.Interval = 1;
     for  ( int  i = 0; i < dob.Length; i += 2)
     {
         template.AddPatternElement(dob[i], dob[i + 1]);
     }
     lineProperties.Template = template;
 
     IPolyline polyline =  new  PolylineClass();
     IPoint point =  new  PointClass();
     point.PutCoords(1, 1);
     polyline.FromPoint = point;
     point.PutCoords(10, 10);
     polyline.ToPoint = point;
     IRgbColor rgbColor = getRGB(0, 255, 0);
     cartographicLineSymbol.Color = rgbColor;
     IActiveView activeView =  this .axMapControl1.ActiveView;
     activeView.ScreenDisplay.StartDrawing(activeView.ScreenDisplay.hDC, ( short )esriScreenCache.esriNoScreenCache);
     activeView.ScreenDisplay.SetSymbol(cartographicLineSymbol  as  ISymbol);
     activeView.ScreenDisplay.DrawPolyline(polyline  as  IGeometry);
     activeView.ScreenDisplay.FinishDrawing();
     activeView.ScreenDisplay.FinishDrawing();
}
 
private  void  multiLayerLineSymbolToolStripMenuItem_Click( object  sender, EventArgs e)
{
     IMultiLayerLineSymbol multiLayerLineSymbol =  new  MultiLayerLineSymbolClass();
     ISimpleLineSymbol simpleLineSymbol =  new  SimpleLineSymbolClass();
     simpleLineSymbol.Style = esriSimpleLineStyle.esriSLSDashDotDot;
     simpleLineSymbol.Width = 10;
     IRgbColor rgbColor = getRGB(255, 0, 0);
     simpleLineSymbol.Color = rgbColor;
     ISymbol symbol = simpleLineSymbol  as  ISymbol;
     symbol.ROP2 = esriRasterOpCode.esriROPNotXOrPen;
 
     ICartographicLineSymbol cartographicLineSymbol =  new  CartographicLineSymbolClass();
     cartographicLineSymbol.Cap = esriLineCapStyle.esriLCSButt;
     cartographicLineSymbol.Join = esriLineJoinStyle.esriLJSBevel;
     cartographicLineSymbol.Width = 10;
     cartographicLineSymbol.MiterLimit = 4;
     ILineProperties lineProperties;
     lineProperties = cartographicLineSymbol  as  ILineProperties;
     lineProperties.Offset = 0;
     double [] dob =  new  double [6];
     dob[0] = 0;
     dob[1] = 1;
     dob[2] = 2;
     dob[3] = 3;
     dob[4] = 4;
     dob[5] = 5;
     ITemplate template =  new  TemplateClass();
     template.Interval = 1;
     for  ( int  i = 0; i < dob.Length; i += 2)
     {
         template.AddPatternElement(dob[i], dob[i + 1]);
     }
     lineProperties.Template = template;
 
     IPolyline polyline =  new  PolylineClass();
     IPoint point =  new  PointClass();
     point.PutCoords(1, 1);
     polyline.FromPoint = point;
     point.PutCoords(10, 10);
     polyline.ToPoint = point;
     rgbColor = getRGB(0, 255, 0);
     cartographicLineSymbol.Color = rgbColor;
     multiLayerLineSymbol.AddLayer(simpleLineSymbol);
     multiLayerLineSymbol.AddLayer(cartographicLineSymbol);
 
     IActiveView activeView =  this .axMapControl1.ActiveView;
 
     activeView.ScreenDisplay.StartDrawing(activeView.ScreenDisplay.hDC, ( short )esriScreenCache.esriNoScreenCache);
     activeView.ScreenDisplay.SetSymbol(multiLayerLineSymbol  as  ISymbol);
     activeView.ScreenDisplay.DrawPolyline(polyline  as  IGeometry);
     activeView.ScreenDisplay.FinishDrawing();
     activeView.ScreenDisplay.FinishDrawing();
}
 
private  void  hashLineSymbolToolStripMenuItem_Click( object  sender, EventArgs e)
{
     IHashLineSymbol hashLineSymbol =  new  HashLineSymbolClass();
     ILineProperties lineProperties = hashLineSymbol  as  ILineProperties;
     lineProperties.Offset = 0;
     double [] dob =  new  double [6];
     dob[0] = 0;
     dob[1] = 1;
     dob[2] = 2;
     dob[3] = 3;
     dob[4] = 4;
     dob[5] = 5;
     ITemplate template =  new  TemplateClass();
     template.Interval = 1;
     for  ( int  i = 0; i < dob.Length; i += 2)
     {
         template.AddPatternElement(dob[i], dob[i + 1]);
     }
     lineProperties.Template = template;
 
     hashLineSymbol.Width = 2;
     hashLineSymbol.Angle = 45;
     IRgbColor hashColor =  new  RgbColor();
     hashColor = getRGB(0, 0, 255);
     hashLineSymbol.Color = hashColor;
 
     IPolyline polyline =  new  PolylineClass();
     IPoint point =  new  PointClass();
     point.PutCoords(1, 1);
     polyline.FromPoint = point;
     point.PutCoords(10, 10);
     polyline.ToPoint = point;
     IActiveView activeView =  this .axMapControl1.ActiveView;
 
     activeView.ScreenDisplay.StartDrawing(activeView.ScreenDisplay.hDC, ( short )esriScreenCache.esriNoScreenCache);
     activeView.ScreenDisplay.SetSymbol(hashLineSymbol  as  ISymbol);
     activeView.ScreenDisplay.DrawPolyline(polyline  as  IGeometry);
     activeView.ScreenDisplay.FinishDrawing();
     activeView.ScreenDisplay.FinishDrawing();
}
 
//下面的没有看
private  void  markerLineSymbolToolStripMenuItem_Click( object  sender, EventArgs e)
{
     IArrowMarkerSymbol arrowMarkerSymbol =  new  ArrowMarkerSymbolClass();
     IRgbColor rgbColor = getRGB(255, 0, 0);
     arrowMarkerSymbol.Color = rgbColor  as  IColor;
     arrowMarkerSymbol.Length = 10;
     arrowMarkerSymbol.Width = 10;
     arrowMarkerSymbol.Style = esriArrowMarkerStyle.esriAMSPlain;
 
     IMarkerLineSymbol markerLineSymbol =  new  MarkerLineSymbolClass();
     markerLineSymbol.MarkerSymbol = arrowMarkerSymbol;
     rgbColor = getRGB(0, 255, 0);
     markerLineSymbol.Color = rgbColor;
     IPolyline polyline =  new  PolylineClass();
     IPoint point =  new  PointClass();
     point.PutCoords(1, 1);
     polyline.FromPoint = point;
     point.PutCoords(10, 10);
     polyline.ToPoint = point;
     IActiveView activeView =  this .axMapControl1.ActiveView;
     activeView.ScreenDisplay.StartDrawing(activeView.ScreenDisplay.hDC, ( short )esriScreenCache.esriNoScreenCache);
     activeView.ScreenDisplay.SetSymbol(markerLineSymbol  as  ISymbol);
     activeView.ScreenDisplay.DrawPolyline(polyline  as  IGeometry);
     activeView.ScreenDisplay.FinishDrawing();
     activeView.ScreenDisplay.FinishDrawing();
}
 
private  void  pictureLineSymbolToolStripMenuItem_Click( object  sender, EventArgs e)
{
     IPictureLineSymbol pictureLineSymbol =  new  PictureLineSymbolClass();
     //创建图片符号
     //string fileName = @"E:\vs2005\第五章\lesson2\lesson2\data\qq.bmp";
     string  path = Directory.GetCurrentDirectory();
     string  fileName = path +  @"\qq.bmp" ;
     pictureLineSymbol.CreateLineSymbolFromFile(esriIPictureType.esriIPictureBitmap, fileName);
     IRgbColor rgbColor = getRGB(0, 255, 0);
     pictureLineSymbol.Color = rgbColor;
     pictureLineSymbol.Offset = 0;
     pictureLineSymbol.Width = 10;
     pictureLineSymbol.Rotate =  false ;
 
     IPolyline polyline =  new  PolylineClass();
     IPoint point =  new  PointClass();
     point.PutCoords(1, 1);
     polyline.FromPoint = point;
     point.PutCoords(10, 10);
     polyline.ToPoint = point;
     IActiveView activeView =  this .axMapControl1.ActiveView;
     activeView.ScreenDisplay.StartDrawing(activeView.ScreenDisplay.hDC, ( short )esriScreenCache.esriNoScreenCache);
     activeView.ScreenDisplay.SetSymbol(pictureLineSymbol  as  ISymbol);
     activeView.ScreenDisplay.DrawPolyline(polyline  as  IGeometry);
     activeView.ScreenDisplay.FinishDrawing();
     activeView.ScreenDisplay.FinishDrawing();
}

 

 

 

 

 

 

二、LineSymbol对象

　　用于修饰线性几何对象符号。Color和Width属性为两个唯一公共属性。

　　子类有：

Classes Description
CartographicLineSymbol 制图线符号，实现ICatographicLineSymbol（主要设置线符号的节点属性，Join：设置线要素转折处的样式）和ILineProperties接口
HashLineSymbol 离散线符号
MarkerLineSymbol A line symbol composed of repeating markers.点线符号
MultiLayerLineSymbol A line symbol that contains one or more layers.使用重叠符号方法产生新符号
PictureLineSymbol A line symbol composed of either a BMP or an EMF picture.比如火车线路符号
SimpleLine3DSymbol (3DAnalyst) Simple 3D Line Symbol component.
SimpleLineSymbol 简单线符号
TextureLineSymbol (3DAnalyst) Texture Line Symbol component.（纹理贴图线符号）

 

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private  void  simpleLineSymbolToolStripMenuItem_Click( object  sender, EventArgs e)
{
     ISimpleLineSymbol simpleLineSymbol =  new  SimpleLineSymbolClass();
     simpleLineSymbol.Style = esriSimpleLineStyle.esriSLSDashDotDot;
     IPolyline polyline =  new  PolylineClass();
     IPoint point =  new  PointClass();
     point.PutCoords(1, 1);
     polyline.FromPoint = point;
     point.PutCoords(10, 10);
     polyline.ToPoint = point;
     simpleLineSymbol.Width = 10;
     IRgbColor rgbColor = getRGB(255, 0, 0);
     simpleLineSymbol.Color = rgbColor;
     ISymbol symbol = simpleLineSymbol  as  ISymbol;
     symbol.ROP2 = esriRasterOpCode.esriROPNotXOrPen;
     IActiveView activeView =  this .axMapControl1.ActiveView;
     //用activeView.ScreenDisplay进行画图
     activeView.ScreenDisplay.StartDrawing(activeView.ScreenDisplay.hDC, ( short )esriScreenCache.esriNoScreenCache);
     activeView.ScreenDisplay.SetSymbol(symbol);
     activeView.ScreenDisplay.DrawPolyline(polyline  as  IGeometry);
     activeView.ScreenDisplay.FinishDrawing();
     activeView.ScreenDisplay.FinishDrawing(); //释放资源
}
 
private  void  cartographicLineSymbolToolStripMenuItem_Click( object  sender, EventArgs e)
{
     ICartographicLineSymbol cartographicLineSymbol =  new  CartographicLineSymbolClass(); //制图线符号
     cartographicLineSymbol.Cap = esriLineCapStyle.esriLCSButt;
     cartographicLineSymbol.Join = esriLineJoinStyle.esriLJSBevel; //连接方式
     cartographicLineSymbol.Width = 10;
     cartographicLineSymbol.MiterLimit = 4; //Size threshold(阈值) for showing mitered line joins.
     ILineProperties lineProperties;
     lineProperties = cartographicLineSymbol  as  ILineProperties;
     lineProperties.Offset = 0;
     double [] dob =  new  double [6];
     dob[0] = 0;
     dob[1] = 1;
     dob[2] = 2;
     dob[3] = 3;
     dob[4] = 4;
     dob[5] = 5;
     ITemplate template =  new  TemplateClass(); //定义模版
     template.Interval = 1;
     for  ( int  i = 0; i < dob.Length; i += 2)
     {
         template.AddPatternElement(dob[i], dob[i + 1]);
     }
     lineProperties.Template = template;
 
     IPolyline polyline =  new  PolylineClass();
     IPoint point =  new  PointClass();
     point.PutCoords(1, 1);
     polyline.FromPoint = point;
     point.PutCoords(10, 10);
     polyline.ToPoint = point;
     IRgbColor rgbColor = getRGB(0, 255, 0);
     cartographicLineSymbol.Color = rgbColor;
     IActiveView activeView =  this .axMapControl1.ActiveView;
     activeView.ScreenDisplay.StartDrawing(activeView.ScreenDisplay.hDC, ( short )esriScreenCache.esriNoScreenCache);
     activeView.ScreenDisplay.SetSymbol(cartographicLineSymbol  as  ISymbol);
     activeView.ScreenDisplay.DrawPolyline(polyline  as  IGeometry);
     activeView.ScreenDisplay.FinishDrawing();
     activeView.ScreenDisplay.FinishDrawing();
}
 
private  void  multiLayerLineSymbolToolStripMenuItem_Click( object  sender, EventArgs e)
{
     IMultiLayerLineSymbol multiLayerLineSymbol =  new  MultiLayerLineSymbolClass();
     ISimpleLineSymbol simpleLineSymbol =  new  SimpleLineSymbolClass();
     simpleLineSymbol.Style = esriSimpleLineStyle.esriSLSDashDotDot;
     simpleLineSymbol.Width = 10;
     IRgbColor rgbColor = getRGB(255, 0, 0);
     simpleLineSymbol.Color = rgbColor;
     ISymbol symbol = simpleLineSymbol  as  ISymbol;
     symbol.ROP2 = esriRasterOpCode.esriROPNotXOrPen;
 
     ICartographicLineSymbol cartographicLineSymbol =  new  CartographicLineSymbolClass();
     cartographicLineSymbol.Cap = esriLineCapStyle.esriLCSButt;
     cartographicLineSymbol.Join = esriLineJoinStyle.esriLJSBevel;
     cartographicLineSymbol.Width = 10;
     cartographicLineSymbol.MiterLimit = 4;
     ILineProperties lineProperties;
     lineProperties = cartographicLineSymbol  as  ILineProperties;
     lineProperties.Offset = 0;
     double [] dob =  new  double [6];
     dob[0] = 0;
     dob[1] = 1;
     dob[2] = 2;
     dob[3] = 3;
     dob[4] = 4;
     dob[5] = 5;
     ITemplate template =  new  TemplateClass();
     template.Interval = 1;
     for  ( int  i = 0; i < dob.Length; i += 2)
     {
         template.AddPatternElement(dob[i], dob[i + 1]);
     }
     lineProperties.Template = template;
 
     IPolyline polyline =  new  PolylineClass();
     IPoint point =  new  PointClass();
     point.PutCoords(1, 1);
     polyline.FromPoint = point;
     point.PutCoords(10, 10);
     polyline.ToPoint = point;
     rgbColor = getRGB(0, 255, 0);
     cartographicLineSymbol.Color = rgbColor;
     multiLayerLineSymbol.AddLayer(simpleLineSymbol);
     multiLayerLineSymbol.AddLayer(cartographicLineSymbol);
 
     IActiveView activeView =  this .axMapControl1.ActiveView;
 
     activeView.ScreenDisplay.StartDrawing(activeView.ScreenDisplay.hDC, ( short )esriScreenCache.esriNoScreenCache);
     activeView.ScreenDisplay.SetSymbol(multiLayerLineSymbol  as  ISymbol);
     activeView.ScreenDisplay.DrawPolyline(polyline  as  IGeometry);
     activeView.ScreenDisplay.FinishDrawing();
     activeView.ScreenDisplay.FinishDrawing();
}
 
private  void  hashLineSymbolToolStripMenuItem_Click( object  sender, EventArgs e)
{
     IHashLineSymbol hashLineSymbol =  new  HashLineSymbolClass();
     ILineProperties lineProperties = hashLineSymbol  as  ILineProperties;
     lineProperties.Offset = 0;
     double [] dob =  new  double [6];
     dob[0] = 0;
     dob[1] = 1;
     dob[2] = 2;
     dob[3] = 3;
     dob[4] = 4;
     dob[5] = 5;
     ITemplate template =  new  TemplateClass();
     template.Interval = 1;
     for  ( int  i = 0; i < dob.Length; i += 2)
     {
         template.AddPatternElement(dob[i], dob[i + 1]);
     }
     lineProperties.Template = template;
 
     hashLineSymbol.Width = 2;
     hashLineSymbol.Angle = 45;
     IRgbColor hashColor =  new  RgbColor();
     hashColor = getRGB(0, 0, 255);
     hashLineSymbol.Color = hashColor;
 
     IPolyline polyline =  new  PolylineClass();
     IPoint point =  new  PointClass();
     point.PutCoords(1, 1);
     polyline.FromPoint = point;
     point.PutCoords(10, 10);
     polyline.ToPoint = point;
     IActiveView activeView =  this .axMapControl1.ActiveView;
 
     activeView.ScreenDisplay.StartDrawing(activeView.ScreenDisplay.hDC, ( short )esriScreenCache.esriNoScreenCache);
     activeView.ScreenDisplay.SetSymbol(hashLineSymbol  as  ISymbol);
     activeView.ScreenDisplay.DrawPolyline(polyline  as  IGeometry);
     activeView.ScreenDisplay.FinishDrawing();
     activeView.ScreenDisplay.FinishDrawing();
}
 
//下面的没有看
private  void  markerLineSymbolToolStripMenuItem_Click( object  sender, EventArgs e)
{
     IArrowMarkerSymbol arrowMarkerSymbol =  new  ArrowMarkerSymbolClass();
     IRgbColor rgbColor = getRGB(255, 0, 0);
     arrowMarkerSymbol.Color = rgbColor  as  IColor;
     arrowMarkerSymbol.Length = 10;
     arrowMarkerSymbol.Width = 10;
     arrowMarkerSymbol.Style = esriArrowMarkerStyle.esriAMSPlain;
 
     IMarkerLineSymbol markerLineSymbol =  new  MarkerLineSymbolClass();
     markerLineSymbol.MarkerSymbol = arrowMarkerSymbol;
     rgbColor = getRGB(0, 255, 0);
     markerLineSymbol.Color = rgbColor;
     IPolyline polyline =  new  PolylineClass();
     IPoint point =  new  PointClass();
     point.PutCoords(1, 1);
     polyline.FromPoint = point;
     point.PutCoords(10, 10);
     polyline.ToPoint = point;
     IActiveView activeView =  this .axMapControl1.ActiveView;
     activeView.ScreenDisplay.StartDrawing(activeView.ScreenDisplay.hDC, ( short )esriScreenCache.esriNoScreenCache);
     activeView.ScreenDisplay.SetSymbol(markerLineSymbol  as  ISymbol);
     activeView.ScreenDisplay.DrawPolyline(polyline  as  IGeometry);
     activeView.ScreenDisplay.FinishDrawing();
     activeView.ScreenDisplay.FinishDrawing();
}
 
private  void  pictureLineSymbolToolStripMenuItem_Click( object  sender, EventArgs e)
{
     IPictureLineSymbol pictureLineSymbol =  new  PictureLineSymbolClass();
     //创建图片符号
     //string fileName = @"E:\vs2005\第五章\lesson2\lesson2\data\qq.bmp";
     string  path = Directory.GetCurrentDirectory();
     string  fileName = path +  @"\qq.bmp" ;
     pictureLineSymbol.CreateLineSymbolFromFile(esriIPictureType.esriIPictureBitmap, fileName);
     IRgbColor rgbColor = getRGB(0, 255, 0);
     pictureLineSymbol.Color = rgbColor;
     pictureLineSymbol.Offset = 0;
     pictureLineSymbol.Width = 10;
     pictureLineSymbol.Rotate =  false ;
 
     IPolyline polyline =  new  PolylineClass();
     IPoint point =  new  PointClass();
     point.PutCoords(1, 1);
     polyline.FromPoint = point;
     point.PutCoords(10, 10);
     polyline.ToPoint = point;
     IActiveView activeView =  this .axMapControl1.ActiveView;
     activeView.ScreenDisplay.StartDrawing(activeView.ScreenDisplay.hDC, ( short )esriScreenCache.esriNoScreenCache);
     activeView.ScreenDisplay.SetSymbol(pictureLineSymbol  as  ISymbol);
     activeView.ScreenDisplay.DrawPolyline(polyline  as  IGeometry);
     activeView.ScreenDisplay.FinishDrawing();
     activeView.ScreenDisplay.FinishDrawing();
}

 

 

三、FillSymbol对象

　　用来修饰多边形等具有面积的几何形体的符号对象。只定义Color和OutLine两个属性。

Classes Description
ColorRampSymbol (Carto) ESRI ColorRampSymbol for raster rendering.
ColorSymbol (Carto) ESRI ColorSymbol for raster rendering.
DotDensityFillSymbol Defines a dot density fill symbol, a data driven symbol commonly used with the DotDensityRenderer对象.
GradientFillSymbol 渐变颜色填充符号，IntervalCount属性来设置用户所需要的颜色梯度。
LineFillSymbol 线填充符号，表现为重复的线条，可以设置线的角度，偏移量和线之间的间隔距离。
MarkerFillSymbol 点填充符号，使用一个Marker符号作为背景填充符号，实现了IMarkerFillSymbol和IFillProperties两个接口
MultiLayerFillSymbol 多层填充符号，使用多个填充符号进行叠加
PictureFillSymbol A fill symbol based on either a BMP or an EMF picture.
RasterRGBSymbol (Carto) ESRI RasterRGBSymbol for raster rendering.
SimpleFillSymbol A fill symbol comprised from a predefined set of styles.
TextureFillSymbol (3DAnalyst) Texture Fill Symbol component.

 

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private  void  simpleFillSymbolToolStripMenuItem_Click( object  sender, EventArgs e)
{
     //简单填充符号
     ISimpleFillSymbol simpleFillSymbol =  new  SimpleFillSymbolClass();
     simpleFillSymbol.Style = esriSimpleFillStyle.esriSFSSolid;
     simpleFillSymbol.Color = getRGB(255, 0, 0);
     //创建边线符号
     ISimpleLineSymbol simpleLineSymbol =  new  SimpleLineSymbolClass();
     simpleLineSymbol.Style = esriSimpleLineStyle.esriSLSDashDotDot;
     simpleLineSymbol.Color = getRGB(0, 255, 0);
     simpleLineSymbol.Width = 10;
     ISymbol symbol = simpleLineSymbol  as  ISymbol;
     symbol.ROP2 = esriRasterOpCode.esriROPNotXOrPen;
 
     simpleFillSymbol.Outline = simpleLineSymbol;
     //创建面对象
     object  Missing = Type.Missing;
     IPolygon polygon =  new  PolygonClass();
     IPointCollection pointCollection = polygon  as  IPointCollection;
     IPoint point =  new  PointClass();
     point.PutCoords(5, 5);
     pointCollection.AddPoint(point,  ref  Missing,  ref  Missing);
     point.PutCoords(5, 10);
     pointCollection.AddPoint(point,  ref  Missing,  ref  Missing);
     point.PutCoords(10, 10);
     pointCollection.AddPoint(point,  ref  Missing,  ref  Missing);
     point.PutCoords(10, 5);
     pointCollection.AddPoint(point,  ref  Missing,  ref  Missing);
     polygon.SimplifyPreserveFromTo();
     IActiveView activeView =  this .axMapControl1.ActiveView;
     activeView.ScreenDisplay.StartDrawing(activeView.ScreenDisplay.hDC, ( short )esriScreenCache.esriNoScreenCache);
     activeView.ScreenDisplay.SetSymbol(simpleFillSymbol  as  ISymbol);
     activeView.ScreenDisplay.DrawPolygon(polygon  as  IGeometry);
     activeView.ScreenDisplay.FinishDrawing();
}
 
private  void  lineFillSymbolToolStripMenuItem_Click( object  sender, EventArgs e)
{
     ICartographicLineSymbol cartoLine =  new  CartographicLineSymbol();
     cartoLine.Cap = esriLineCapStyle.esriLCSButt;
     cartoLine.Join = esriLineJoinStyle.esriLJSMitre;
     cartoLine.Color = getRGB(255, 0, 0);
     cartoLine.Width = 2;
     //Create the LineFillSymbo
     ILineFillSymbol lineFill =  new  LineFillSymbol();
     lineFill.Angle = 45;
     lineFill.Separation = 10;
     lineFill.Offset = 5;
     lineFill.LineSymbol = cartoLine;
     object  Missing = Type.Missing;
     IPolygon polygon =  new  PolygonClass();
     IPointCollection pointCollection = polygon  as  IPointCollection;
     IPoint point =  new  PointClass();
     point.PutCoords(5, 5);
     pointCollection.AddPoint(point,  ref  Missing,  ref  Missing);
     point.PutCoords(5, 10);
     pointCollection.AddPoint(point,  ref  Missing,  ref  Missing);
     point.PutCoords(10, 10);
     pointCollection.AddPoint(point,  ref  Missing,  ref  Missing);
     point.PutCoords(10, 5);
     pointCollection.AddPoint(point,  ref  Missing,  ref  Missing);
     polygon.SimplifyPreserveFromTo();
     IActiveView activeView =  this .axMapControl1.ActiveView;
     activeView.ScreenDisplay.StartDrawing(activeView.ScreenDisplay.hDC, ( short )esriScreenCache.esriNoScreenCache);
     activeView.ScreenDisplay.SetSymbol(lineFill  as  ISymbol);
     activeView.ScreenDisplay.DrawPolygon(polygon  as  IGeometry);
     activeView.ScreenDisplay.FinishDrawing();
}
 
private  void  markerFillSymbolToolStripMenuItem_Click( object  sender, EventArgs e)
{
     IArrowMarkerSymbol arrowMarkerSymbol =  new  ArrowMarkerSymbolClass();
     IRgbColor rgbColor = getRGB(255, 0, 0);
     arrowMarkerSymbol.Color = rgbColor  as  IColor;
     arrowMarkerSymbol.Length = 10;
     arrowMarkerSymbol.Width = 10;
     arrowMarkerSymbol.Style = esriArrowMarkerStyle.esriAMSPlain;
 
 
     IMarkerFillSymbol markerFillSymbol =  new  MarkerFillSymbolClass();
     markerFillSymbol.MarkerSymbol = arrowMarkerSymbol;
     rgbColor = getRGB(0, 255, 0);
     markerFillSymbol.Color = rgbColor;
     markerFillSymbol.Style = esriMarkerFillStyle.esriMFSGrid;
 
     IFillProperties fillProperties = markerFillSymbol  as  IFillProperties;
     fillProperties.XOffset = 2;
     fillProperties.YOffset = 2;
     fillProperties.XSeparation = 15;
     fillProperties.YSeparation = 20;
 
     object  Missing = Type.Missing;
     IPolygon polygon =  new  PolygonClass();
     IPointCollection pointCollection = polygon  as  IPointCollection;
     IPoint point =  new  PointClass();
     point.PutCoords(5, 5);
     pointCollection.AddPoint(point,  ref  Missing,  ref  Missing);
     point.PutCoords(5, 10);
     pointCollection.AddPoint(point,  ref  Missing,  ref  Missing);
     point.PutCoords(10, 10);
     pointCollection.AddPoint(point,  ref  Missing,  ref  Missing);
     point.PutCoords(10, 5);
     pointCollection.AddPoint(point,  ref  Missing,  ref  Missing);
     polygon.SimplifyPreserveFromTo();
     IActiveView activeView =  this .axMapControl1.ActiveView;
     activeView.ScreenDisplay.StartDrawing(activeView.ScreenDisplay.hDC, ( short )esriScreenCache.esriNoScreenCache);
     activeView.ScreenDisplay.SetSymbol(markerFillSymbol  as  ISymbol);
     activeView.ScreenDisplay.DrawPolygon(polygon  as  IGeometry);
     activeView.ScreenDisplay.FinishDrawing();
}
 
private  void  gradientFillSymbolToolStripMenuItem_Click( object  sender, EventArgs e)
{
     IGradientFillSymbol gradientFillSymbol =  new  GradientFillSymbolClass();
     IAlgorithmicColorRamp algorithcColorRamp =  new  AlgorithmicColorRampClass();
     algorithcColorRamp.FromColor = getRGB(255, 0, 0);
     algorithcColorRamp.ToColor = getRGB(0, 255, 0);
     algorithcColorRamp.Algorithm = esriColorRampAlgorithm.esriHSVAlgorithm;
     gradientFillSymbol.ColorRamp = algorithcColorRamp;
     gradientFillSymbol.GradientAngle = 45;
     gradientFillSymbol.GradientPercentage = 0.9;
     gradientFillSymbol.Style = esriGradientFillStyle.esriGFSLinear;
 
 
     object  Missing = Type.Missing;
     IPolygon polygon =  new  PolygonClass();
     IPointCollection pointCollection = polygon  as  IPointCollection;
     IPoint point =  new  PointClass();
     point.PutCoords(5, 5);
     pointCollection.AddPoint(point,  ref  Missing,  ref  Missing);
     point.PutCoords(5, 10);
     pointCollection.AddPoint(point,  ref  Missing,  ref  Missing);
     point.PutCoords(10, 10);
     pointCollection.AddPoint(point,  ref  Missing,  ref  Missing);
     point.PutCoords(10, 5);
     pointCollection.AddPoint(point,  ref  Missing,  ref  Missing);
     polygon.SimplifyPreserveFromTo();
     IActiveView activeView =  this .axMapControl1.ActiveView;
     activeView.ScreenDisplay.StartDrawing(activeView.ScreenDisplay.hDC, ( short )esriScreenCache.esriNoScreenCache);
     activeView.ScreenDisplay.SetSymbol(gradientFillSymbol  as  ISymbol);
     activeView.ScreenDisplay.DrawPolygon(polygon  as  IGeometry);
     activeView.ScreenDisplay.FinishDrawing();
}
 
private  void  pictureFillSymbolToolStripMenuItem_Click( object  sender, EventArgs e)
{
     IPictureFillSymbol pictureFillSymbol =  new  PictureFillSymbolClass();
     //创建图片符号
     //string fileName = @"E:\vs2005\第五章\lesson2\lesson2\data\qq.bmp";
     string  path = Directory.GetCurrentDirectory();
     string  fileName = path +  @"\qq.bmp" ;
     pictureFillSymbol.CreateFillSymbolFromFile(esriIPictureType.esriIPictureBitmap, fileName);
     pictureFillSymbol.Color = getRGB(0, 255, 0);
 
     ISimpleLineSymbol simpleLineSymbol =  new  SimpleLineSymbolClass();
     simpleLineSymbol.Style = esriSimpleLineStyle.esriSLSDashDotDot;
     simpleLineSymbol.Color = getRGB(255, 0, 0);
     ISymbol symbol = pictureFillSymbol  as  ISymbol;
     symbol.ROP2 = esriRasterOpCode.esriROPNotXOrPen;
 
     pictureFillSymbol.Outline = simpleLineSymbol;
     pictureFillSymbol.Angle = 45;
 
     object  Missing = Type.Missing;
     IPolygon polygon =  new  PolygonClass();
     IPointCollection pointCollection = polygon  as  IPointCollection;
     IPoint point =  new  PointClass();
     point.PutCoords(5, 5);
     pointCollection.AddPoint(point,  ref  Missing,  ref  Missing);
     point.PutCoords(5, 10);
     pointCollection.AddPoint(point,  ref  Missing,  ref  Missing);
     point.PutCoords(10, 10);
     pointCollection.AddPoint(point,  ref  Missing,  ref  Missing);
     point.PutCoords(10, 5);
     pointCollection.AddPoint(point,  ref  Missing,  ref  Missing);
     polygon.SimplifyPreserveFromTo();
     IActiveView activeView =  this .axMapControl1.ActiveView;
     activeView.ScreenDisplay.StartDrawing(activeView.ScreenDisplay.hDC, ( short )esriScreenCache.esriNoScreenCache);
     activeView.ScreenDisplay.SetSymbol(pictureFillSymbol  as  ISymbol);
     activeView.ScreenDisplay.DrawPolygon(polygon  as  IGeometry);
     activeView.ScreenDisplay.FinishDrawing();
}
 
private  void  multilayerFillSymbolToolStripMenuItem_Click( object  sender, EventArgs e)
{
     IMultiLayerFillSymbol multiLayerFillSymbol =  new  MultiLayerFillSymbolClass();
 
     IGradientFillSymbol gradientFillSymbol =  new  GradientFillSymbolClass();
     IAlgorithmicColorRamp algorithcColorRamp =  new  AlgorithmicColorRampClass();
     algorithcColorRamp.FromColor = getRGB(255, 0, 0);
     algorithcColorRamp.ToColor = getRGB(0, 255, 0);
     algorithcColorRamp.Algorithm = esriColorRampAlgorithm.esriHSVAlgorithm;
     gradientFillSymbol.ColorRamp = algorithcColorRamp;
     gradientFillSymbol.GradientAngle = 45;
     gradientFillSymbol.GradientPercentage = 0.9;
     gradientFillSymbol.Style = esriGradientFillStyle.esriGFSLinear;
 
     ICartographicLineSymbol cartoLine =  new  CartographicLineSymbol();
     cartoLine.Cap = esriLineCapStyle.esriLCSButt;
     cartoLine.Join = esriLineJoinStyle.esriLJSMitre;
     cartoLine.Color = getRGB(255, 0, 0);
     cartoLine.Width = 2;
     //Create the LineFillSymbo
     ILineFillSymbol lineFill =  new  LineFillSymbol();
     lineFill.Angle = 45;
     lineFill.Separation = 10;
     lineFill.Offset = 5;
     lineFill.LineSymbol = cartoLine;
 
 
     multiLayerFillSymbol.AddLayer(gradientFillSymbol);
     multiLayerFillSymbol.AddLayer(lineFill);
 
     object  Missing = Type.Missing;
     IPolygon polygon =  new  PolygonClass();
     IPointCollection pointCollection = polygon  as  IPointCollection;
     IPoint point =  new  PointClass();
     point.PutCoords(5, 5);
     pointCollection.AddPoint(point,  ref  Missing,  ref  Missing);
     point.PutCoords(5, 10);
     pointCollection.AddPoint(point,  ref  Missing,  ref  Missing);
     point.PutCoords(10, 10);
     pointCollection.AddPoint(point,  ref  Missing,  ref  Missing);
     point.PutCoords(10, 5);
     pointCollection.AddPoint(point,  ref  Missing,  ref  Missing);
     polygon.SimplifyPreserveFromTo();
     IActiveView activeView =  this .axMapControl1.ActiveView;
     activeView.ScreenDisplay.StartDrawing(activeView.ScreenDisplay.hDC, ( short )esriScreenCache.esriNoScreenCache);
     activeView.ScreenDisplay.SetSymbol(multiLayerFillSymbol  as  ISymbol);
     activeView.ScreenDisplay.DrawPolygon(polygon  as  IGeometry);
     activeView.ScreenDisplay.FinishDrawing();
}

 

 

四、TextSymbol对象

　　用于修饰文字元素，实现ITextSymbol，ISimpleTextSymbol，IFormattedTextSymbol接口。

　　ITextSymbol是定义文本字符对象的主要接口，通过IFontDisp接口来设置字体的大小、粗体、斜体等。

　　ISimpleTextSymbol

 

 　　BezierTextPath对象可以让文字的路径按照贝塞尔曲线设置。

　　ITextPath接口提供用来计算每个字符文字路径的位置。

　　IFormattedTextSymbol接口用来设置背景对象、阴影等属性

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private  void  textSybmolToolStripMenuItem_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();
 
}

 

 

 五、3DChartSymbol对象

　　是一个抽象类，有三个子类：BarChart（用来着色）、PieChart、StaekedChart。

　　它实现多个接口：IChartSymbol、IBarChartSymbol、IPieChartSymbol和IStackedSymbol等。

　　IChartSymbol接口主要用于计算一个ChartSymbol对象中的柱状和饼状部分的尺寸，其中Maximum值是创建3DChartSymbol对象后必须设置的一个属性，着色一般在一个要素图层上进行，因而可以从它的要素类中获得一系列的数值统计值。如果有三个数值参与着色，系统则必须对三个数值进行大小比较，找出最大的那个赋值给Maximum。Value属性用数组来设置柱状高度或饼状宽度。可以用ISymbolArray来管理多个参与着色的符号对象。

　　BarChartSymbol对象实现IBarChartSymbol接口，用不同类型的柱子代表一个要素中的不同属性，高度取决于属性值得大小。

　　PieChartSymbol对象实现IPieChartSymbol接口，用一个饼图来显示一个要素中的不同属性，不同属性按照他们的数值大小，占有不同比例的扇形区域。

　　StackedSymbol对象实现IStackedSymbol接口，堆积的柱子表示一个要素中的不同属性，Fixed属性为true时，每个柱子的高度都一样，false时，柱子尺寸根据要素类的属性来计算得出。

没有整理与归纳的知识，一文不值！高度概括与梳理的知识，才是自己真正的知识与技能。 永远不要让自己的自由、好奇、充满创造力的想法被现实的框架所束缚，让创造力自由成长吧！ 多花时间，关心他（她）人，正如别人所关心你的。理想的腾飞与实现，没有别人的支持与帮助，是万万不能的。






    本文转自wenglabs博客园博客，原文链接：http://www.cnblogs.com/arxive/p/5903590.html，如需转载请自行联系原作者

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