ArcEngine符号化—

1、前言

在GIS系统的开发过程中，地图符号化其实是非常重要的一块内容。ArcEngine为我们提供了很多种符号样式，现在就来介绍一下ArcEngine中的点状符号。

2、常用的点符号

2.1、简单符号

2.2、箭头符号

2.3、叠加符号

2.4、字符标记符号
2.5、图片符号

3、实现代码

using System;
using System.Windows.Forms;
using ESRI.ArcGIS.Carto;
using ESRI.ArcGIS.Display;
using stdole;namespace Win
{public partial class frmMain : Form{public frmMain(){InitializeComponent();axMapControl1.AddShapeFile(@"C:\Users\DSF\Desktop\data", @"point.shp");}/// <summary>/// 简单点符号/// </summary>/// <param name="sender"></param>/// <param name="e"></param>private void btnSimpleMarkerSymbol_Click(object sender, EventArgs e){// 点符号颜色IRgbColor pMarkerSymbolColor = new RgbColor();pMarkerSymbolColor.Red = 255;pMarkerSymbolColor.Green = 0;pMarkerSymbolColor.Blue = 0;// 轮廓线颜色IRgbColor pOutlineColor = new RgbColor();pOutlineColor.Red = 0;pOutlineColor.Green = 0;pOutlineColor.Blue = 255;// 创建符号ISimpleMarkerSymbol pSimpleMarkerSymbol = new SimpleMarkerSymbol();pSimpleMarkerSymbol.Angle = 30;pSimpleMarkerSymbol.Color = pMarkerSymbolColor;pSimpleMarkerSymbol.Size = 15;pSimpleMarkerSymbol.Style = esriSimpleMarkerStyle.esriSMSSquare;pSimpleMarkerSymbol.Outline = true;pSimpleMarkerSymbol.OutlineColor = pOutlineColor;pSimpleMarkerSymbol.OutlineSize = 3;// 设置符号IGeoFeatureLayer pGeoFeatureLayer = axMapControl1.get_Layer(0) as IGeoFeatureLayer;IFeatureRenderer pFeatureRenderer = pGeoFeatureLayer.Renderer;ISimpleRenderer pSimpleRenderer = pFeatureRenderer as ISimpleRenderer;pSimpleRenderer.Symbol = pSimpleMarkerSymbol as ISymbol;// 刷新地图axMapControl1.Refresh();axTOCControl1.Update();}/// <summary>/// 箭头符号/// </summary>/// <param name="sender"></param>/// <param name="e"></param>private void btnArrowMarkerSymbol_Click(object sender, EventArgs e){// 点符号颜色IRgbColor pRgbColor = new RgbColor();pRgbColor.Red = 255;pRgbColor.Green = 0;pRgbColor.Blue = 0;// 创建符号IArrowMarkerSymbol pArrowMarkerSymbol = new ArrowMarkerSymbol();pArrowMarkerSymbol.Angle = 0;pArrowMarkerSymbol.Color = pRgbColor;pArrowMarkerSymbol.Length = 20;pArrowMarkerSymbol.Size = 30;pArrowMarkerSymbol.Style = esriArrowMarkerStyle.esriAMSPlain;pArrowMarkerSymbol.Width = 20;// 设置符号IGeoFeatureLayer pGeoFeatureLayer = axMapControl1.get_Layer(0) as IGeoFeatureLayer;IFeatureRenderer pFeatureRenderer = pGeoFeatureLayer.Renderer;ISimpleRenderer pSimpleRenderer = pFeatureRenderer as ISimpleRenderer;pSimpleRenderer.Symbol = pArrowMarkerSymbol as ISymbol;// 刷新地图axMapControl1.Refresh();axTOCControl1.Update();}/// <summary>/// 叠加符号/// </summary>/// <param name="sender"></param>/// <param name="e"></param>private void btnMultiLayerMarkerSymbol_Click(object sender, EventArgs e){// 创建简单符号颜色IRgbColor pSimpleMarkerSymbolColor = new RgbColor();pSimpleMarkerSymbolColor.Red = 255;pSimpleMarkerSymbolColor.Green = 0;pSimpleMarkerSymbolColor.Blue = 0;// 创建箭头符号颜色IRgbColor pArrowMarkerSymbolColor = new RgbColor();pArrowMarkerSymbolColor.Red = 0;pArrowMarkerSymbolColor.Green = 255;pArrowMarkerSymbolColor.Blue = 0;// 创建简单符号ISimpleMarkerSymbol pSimpleMarkerSymbol = new SimpleMarkerSymbol();pSimpleMarkerSymbol.Color = pSimpleMarkerSymbolColor;pSimpleMarkerSymbol.Size = 30;pSimpleMarkerSymbol.Style = esriSimpleMarkerStyle.esriSMSCross;// 创建箭头符号IArrowMarkerSymbol pArrowMarkerSymbol = new ArrowMarkerSymbol();pArrowMarkerSymbol.Color = pArrowMarkerSymbolColor;pArrowMarkerSymbol.Length = 20;pArrowMarkerSymbol.Size = 20;pArrowMarkerSymbol.Style = esriArrowMarkerStyle.esriAMSPlain;pArrowMarkerSymbol.Width = 20;// 创建叠加符号IMultiLayerMarkerSymbol pMultiLayerMarkerSymbol = new MultiLayerMarkerSymbol();pMultiLayerMarkerSymbol.AddLayer(pSimpleMarkerSymbol);pMultiLayerMarkerSymbol.AddLayer(pArrowMarkerSymbol);// 设置符号IGeoFeatureLayer pGeoFeatureLayer = axMapControl1.get_Layer(0) as IGeoFeatureLayer;IFeatureRenderer pFeatureRenderer = pGeoFeatureLayer.Renderer;ISimpleRenderer pSimpleRenderer = pFeatureRenderer as ISimpleRenderer;pSimpleRenderer.Symbol = pMultiLayerMarkerSymbol as ISymbol;// 刷新地图axMapControl1.Refresh();axTOCControl1.Update();}/// <summary>/// 字符标记符号/// </summary>/// <param name="sender"></param>/// <param name="e"></param>private void btnCharacterMarkerSymbol_Click(object sender, EventArgs e){// 点符号颜色IRgbColor pRgbColor = new RgbColor();pRgbColor.Red = 255;pRgbColor.Green = 0;pRgbColor.Blue = 0;// 创建字体IFontDisp pFontDisp = new StdFont() as IFontDisp;pFontDisp.Name = "楷体";pFontDisp.Size = 40;// 创建符号ICharacterMarkerSymbol pCharacterMarkerSymbol = new CharacterMarkerSymbol();pCharacterMarkerSymbol.Angle = 0;pCharacterMarkerSymbol.CharacterIndex = 10084;pCharacterMarkerSymbol.Color = pRgbColor;pCharacterMarkerSymbol.Font = pFontDisp;pCharacterMarkerSymbol.Size = 40;// 设置符号IGeoFeatureLayer pGeoFeatureLayer = axMapControl1.get_Layer(0) as IGeoFeatureLayer;IFeatureRenderer pFeatureRenderer = pGeoFeatureLayer.Renderer;ISimpleRenderer pSimpleRenderer = pFeatureRenderer as ISimpleRenderer;pSimpleRenderer.Symbol = pCharacterMarkerSymbol as ISymbol;// 刷新地图axMapControl1.Refresh();axTOCControl1.Update();}/// <summary>/// 图片符号/// </summary>/// <param name="sender"></param>/// <param name="e"></param>private void btnPictureMarkerSymbol_Click(object sender, EventArgs e){// 创建符号IPictureMarkerSymbol pPictureMarkerSymbol = new PictureMarkerSymbol();pPictureMarkerSymbol.Angle = 0;pPictureMarkerSymbol.CreateMarkerSymbolFromFile(esriIPictureType.esriIPicturePNG, @"C:\Users\DSF\Desktop\Driving_Directions32.png");pPictureMarkerSymbol.Size = 25;// 设置符号IGeoFeatureLayer pGeoFeatureLayer = axMapControl1.get_Layer(0) as IGeoFeatureLayer;IFeatureRenderer pFeatureRenderer = pGeoFeatureLayer.Renderer;ISimpleRenderer pSimpleRenderer = pFeatureRenderer as ISimpleRenderer;pSimpleRenderer.Symbol = pPictureMarkerSymbol as ISymbol;// 刷新地图axMapControl1.Refresh();axTOCControl1.Update();}}
}

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ArcEngine符号化——点符号

1、前言

2、常用的点符号

3、实现代码

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