[转] ArcGIS engine中气泡标注的添加、修改

小生 原文 ArcGIS engine中气泡标注的添加、修改！

　　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();
        }

       
    }
}