AE基础(5)鹰眼功能

using ESRI.ArcGIS.Carto;
using ESRI.ArcGIS.Controls;
using ESRI.ArcGIS.Display;
using ESRI.ArcGIS.esriSystem;
using ESRI.ArcGIS.Geometry;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace Ch02Ex06
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
        private void Form1_Click(object sender, EventArgs e)
        {
            LoadMap();
        }
        private void LoadMap()
        {
            OpenFileDialog of = new OpenFileDialog();
            of.Title = "打开地图";
            of.Filter = "打开(*.mxd)|*.mxd";
            of.ShowDialog();
            string path = of.FileName;
            if (axMapControl1.CheckMxFile(path))
            {
                axMapControl1.MousePointer = esriControlsMousePointer.esriPointerHourglass;
                axMapControl1.LoadMxFile(path, 0, Type.Missing);
                axMapControl1.MousePointer = esriControlsMousePointer.esriPointerDefault;
                LoadEyeMap(path);               
            }
            else
            {
                MessageBox.Show("不是有效地地图","错误");
            }
        }
        private void LoadEyeMap(string filePath)
        {           
            if (axMapControl1.CheckMxFile(filePath))
            {
                axMapControl2.MousePointer =ESRI.ArcGIS.Controls.esriControlsMousePointer.esriPointerHourglass;
                axMapControl2.LoadMxFile(filePath, 0, Type.Missing);
                axMapControl2.MousePointer = esriControlsMousePointer.esriPointerDefault;
            }
            else
            {
                MessageBox.Show("不是有效地地图", "错误");
            }
        }

        private void axMapControl1_OnMouseDown(object sender, IMapControlEvents2_OnMouseDownEvent e)
        {
            if (e.button == 1)
            {
                axMapControl1.Extent = axMapControl1.TrackRectangle();
                axMapControl1.Refresh(esriViewDrawPhase.esriViewBackground, null, null);
            }
            else if(e.button==2)
            {
                axMapControl1.Pan();
                axMapControl1.Refresh(esriViewDrawPhase.esriViewBackground,null,null);
            }
        }

        private void axMapControl1_OnExtentUpdated(object sender, IMapControlEvents2_OnExtentUpdatedEvent e)
        {
            IEnvelope envelope = e.newEnvelope as IEnvelope;
            IGraphicsContainer graphicsContainer = axMapControl2.Map as IGraphicsContainer;
            IActiveView activeView = graphicsContainer as IActiveView;
            graphicsContainer.DeleteAllElements();
            IElement element = new RectangleElement();
            element.Geometry = envelope;

            ILineSymbol outLineSymbol = new SimpleLineSymbol();
            outLineSymbol.Width = 2;
            outLineSymbol.Color = GetColor(255, 0, 0, 255);

            IFillSymbol fillSymbol = new SimpleFillSymbol();
            fillSymbol.Color = GetColor(9, 0, 0, 0);
            fillSymbol.Outline = outLineSymbol;

            IFillShapeElement fillShapeElement = element as IFillShapeElement;
            fillShapeElement.Symbol = fillSymbol;

            graphicsContainer.AddElement(fillShapeElement as IElement, 0);
            activeView.PartialRefresh(esriViewDrawPhase.esriViewGraphics, null,null);
        }
        private IRgbColor GetColor(int r, int g, int b, int t)
        {
            IRgbColor rgbColor = new RgbColor();
            rgbColor.Red = r;
            rgbColor.Green = g;
            rgbColor.Blue = b;
            rgbColor.Transparency = (byte)t;
            return rgbColor;
        }

        private void axMapControl2_OnMouseDown(object sender, IMapControlEvents2_OnMouseDownEvent e)
        {
            IPoint point = new ESRI.ArcGIS.Geometry.Point();
            point.X = e.mapX;
            point.Y = e.mapY;
            axMapControl1.CenterAt(point);
        }

      
    }
}