小生 原文

　　你微微地笑着，不同我说什么话。而我觉得，为了这个，我已等待得久了。             

　　                                                                                              　　 ——泰戈尔

　　喜欢看你微微的笑着，哪怕你一句话都不说，看见你笑，仿佛四季如春……笑，蕴含着着一种信任，一种安全，一种爱护，一种宽容，一种心灵的感应……宝贝，朝我笑笑，好么？

　　生活本已是一杯苦酒，我们何不笑着饮下？一颗感恩的心，一颗热爱生活的心，爱惜那些值得爱的人，一起欢乐，一起将各自生活的苦酒淡化，每天都让我们灿烂的笑……

     

　　不要认为后面还有更好的，因为现在拥有的就是最好的。不要因为距离太远而放弃，爱情可以和你一起坐火车的。不要因为对方不富裕而放弃，只要不是无能的人，勤劳可以让你们富裕的。不要因为父母反对而放弃，你会发现因为这个原因而反放弃的爱情，将是你一生的悔恨。其实对于爱情，越单纯越幸福。一生只谈一次恋爱是最好的，经历的太多了，会麻木；分离多了，会习惯；换恋人多了，会比较；到最后，你不会再相信爱情；你会自暴自弃；你会行尸走肉；你会与你不爱的人结婚，就这样过一辈子。

 

 

 

　　ArcGIS engine中气泡标注 ，是我们在编辑图形中一个重要的工具，能提供注释功能，下面的介绍怎么来编程实现callout的添加，以及怎么去修改它们！

 

//  在Mapcontrol的mouseDown中添加下列内容，来添加气泡注释功能：callout. private void axMapControl1_OnMouseDown(object sender, IMapControlEvents2_OnMouseDownEvent e)        {                    axMapControl1.CurrentTool = null;                    IPoint pPoint ;                    pPoint = new PointClass();                    pPoint.PutCoords(e.mapX, e.mapY);                                IFormattedTextSymbol pTextSymbol = new TextSymbolClass();                    pTextSymbol.Background = CreateBalloonCallout(e.mapX, e.mapY) as ITextBackground;                    pTextSymbol.Direction = esriTextDirection.esriTDAngle;                    pTextSymbol.Angle = 15;                    ITextElement pTextElement = new TextElementClass();                    pTextElement.Symbol = pTextSymbol as ITextSymbol;                    pTextElement.Text = "MaDeSheng";                    IElement ptexte = pTextElement as IElement;                    pPoint = new PointClass();                    pPoint.PutCoords(e.mapX * 0.90, e.mapY *1.1);                    ptexte.Geometry = pPoint as IGeometry;                    IMap pMap = axMapControl1.Map;                    IGraphicsContainer pGraphicsContainer = pMap as IGraphicsContainer;                    pGraphicsContainer.AddElement(pTextElement as IElement, 0);                    this.axMapControl1.ActiveView.PartialRefresh(esriViewDrawPhase.esriViewGraphics, null, null);}

 

 红颜色的部分是产生气泡背景，具体程序如下：

public IBalloonCallout CreateBalloonCallout(double x, double y)        {            IRgbColor pRgbClr = new RgbColorClass();            pRgbClr.Red = 225;            pRgbClr.Blue = 225;            pRgbClr.Green = 225;            ISimpleFillSymbol pSmplFill = new SimpleFillSymbolClass();            pSmplFill.Color = pRgbClr;            pSmplFill.Style = esriSimpleFillStyle.esriSFSSolid;            IBalloonCallout pBllnCallout = new BalloonCalloutClass();            //pBllnCallout.Style = esriBalloonCalloutStyle.esriBCSRectangle;            pBllnCallout.Style = esriBalloonCalloutStyle.esriBCSRoundedRectangle;            pBllnCallout.Symbol = pSmplFill;                       pBllnCallout.LeaderTolerance = 5;            IPoint pPoint = new ESRI.ArcGIS.Geometry.PointClass();            pPoint.X = x;            pPoint.Y = y;            pBllnCallout.AnchorPoint = pPoint;            return pBllnCallout;        }

 

 

那么添加了之后如何修改呢?

双击事件！

 

private void axMapControl1_OnDoubleClick(object sender, IMapControlEvents2_OnDoubleClickEvent e)        {            if(e.button ==1)            {                //标注的修改                if (((axMapControl1.CurrentTool) as ICommand).Name == "ControlToolsGraphicElement_SelectTool")//这一句的判断很牛B，我当时考虑了半天才搞出来。难点呀！toolbarControl中要加载esriControls.ControlsSelectTool工具                {                    IPoint pPoint = new PointClass();                    pPoint.PutCoords(e.mapX, e.mapY);                    IMap pMap = axMapControl1.Map;                    IGraphicsContainer pGraphicsContainer = pMap as IGraphicsContainer;                    IEnumElement pEnumElement = pGraphicsContainer.LocateElements(pPoint, 10);                    if (pEnumElement != null)                    {                        IElement pElement = pEnumElement.Next();                        if (pElement is ITextElement)                        {                                                        ITextElement ptextElement = pElement as ITextElement;                            labelEditCallout pLabelEditCallout = new labelEditCallout(ptextElement.Text, ptextElement.Symbol);                            pLabelEditCallout.ShowDialog();                            ptextElement.Text = pLabelEditCallout.inputText;                            ptextElement.Symbol = pLabelEditCallout.textSymbol;                                                         pGraphicsContainer.DeleteElement(pElement);                            pGraphicsContainer.AddElement(pElement,0);                         //这两句可以用pGraphicsContainer.UpdataElement(pElement);来代替                            this.axMapControl1.ActiveView.PartialRefresh(esriViewDrawPhase.esriViewGraphics, null, null);                        }                    }                }            }        }

 labelEditCallout是我自己弄的一个修改样式，其实很简单的一个页面，截图如下：

 

具体，代码如下：

 

using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Linq;using System.Text;using System.Windows.Forms;using ESRI.ArcGIS.Display;using ESRI.ArcGIS.Geometry;namespace Edit{    public partial class labelEditCallout : Form    {        public string inputText = "";        public ITextSymbol textSymbol;        private bool ModifFillColor = false;        public labelEditCallout(string s,ITextSymbol texSy)        {            inputText = s;            textSymbol = texSy;            InitializeComponent();        }        private void labelEditCallout_Load(object sender, EventArgs e)        {            textBox1.Text = inputText;             comboBox1.Items.Add("矩形框");             comboBox1.Items.Add("圆角矩形");             //comboBox1.Items.Add("Oval");             comboBox1.SelectedIndex = 1;        }        public IColor ConvertColorToIColor(Color color)        {            IColor pColor = new RgbColorClass();            pColor.RGB = color.B * 65536 + color.G * 256 + color.R;            return pColor;        }        private void button2_Click(object sender, EventArgs e)        {            IBalloonCallout textBack = (((IFormattedTextSymbol)textSymbol).Background) as IBalloonCallout;            IFillSymbol pOldFill = textBack.Symbol;            IPoint pPoint = textBack.AnchorPoint;                        ISimpleFillSymbol pSmplFill = new SimpleFillSymbolClass();            pSmplFill.Style = esriSimpleFillStyle.esriSFSSolid;            if (ModifFillColor)            {                pSmplFill.Color = ConvertColorToIColor(this.button1.BackColor);            }            else                pSmplFill.Color = pOldFill.Color;                       IBalloonCallout pBllnCallout = new BalloonCalloutClass();            switch (comboBox1.Text)            {                case"矩形框":                    pBllnCallout.Style = esriBalloonCalloutStyle.esriBCSRectangle;                    break;                case"圆角矩形":                    pBllnCallout.Style = esriBalloonCalloutStyle.esriBCSRoundedRectangle;                    break;                //case"Oval":                //    pBllnCallout.Style = esriBalloonCalloutStyle.esriBCSOval;                //    break;            }                       pBllnCallout.Symbol = pSmplFill;            pBllnCallout.LeaderTolerance = 5;            pBllnCallout.AnchorPoint = pPoint;            IFormattedTextSymbol pTextSymbol = new TextSymbolClass();            pTextSymbol.Direction = esriTextDirection.esriTDAngle;            pTextSymbol.Angle = 15;            pTextSymbol.Background = pBllnCallout as ITextBackground;                                   textSymbol = pTextSymbol as ITextSymbol;            inputText = textBox1.Text;            this.Close();        }        //获取颜色        private void button1_Click(object sender, EventArgs e)        {            if (this.colorDialog.ShowDialog() == DialogResult.OK)            {                this.button1.BackColor = this.colorDialog.Color;                ModifFillColor = true;            }        }        private void button3_Click(object sender, EventArgs e)        {            this.Close();        }           }}