ArcGIS 鹰眼地图功能实现
ArcGIS地图鹰眼功能实现：
1.创建ArcEngine winform程序，界面如下图所示
2、具体代码如下所示
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.IO;
using System.Runtime.InteropServices;
using ESRI.ArcGIS.esriSystem;
using ESRI.ArcGIS.Carto;
using ESRI.ArcGIS.Controls;
using ESRI.ArcGIS.ADF;
using ESRI.ArcGIS.SystemUI;
using ESRI.ArcGIS.Geometry;
using ESRI.ArcGIS.Display;
namespace MapControl
{
public sealed partial class MainForm : Form
{
#region class private members
private IMapControl3 m_mapControl = null;
private string m_mapDocumentName = string.Empty;
#endregion
#region class constructor
public MainForm()
{
InitializeComponent();
}
#endregion
private void MainForm_Load(object sender, EventArgs e)
{
//get the MapControl
m_mapControl = (IMapControl3)axMapControl1.Object;
//disable the Save menu (since there is no document yet)
menuSaveDoc.Enabled = false;
//加载MXD数据
this.axMapControl1.LoadMxFile(Application.StartupPath +@"\Map\Map.mxd");
this.axMapControl1.Extent = this.axMapControl1.FullExtent;
this.axMapControl1.ActiveView.Refresh();
}
#region Main Menu event handlers
private void menuNewDoc_Click(object sender, EventArgs e)
{
//execute New Document command
ICommand command = new CreateNewDocument();
command.OnCreate(m_mapControl.Object);
command.OnClick();
}
private void menuOpenDoc_Click(object sender, EventArgs e)
{
//execute Open Document command
ICommand command = new ControlsOpenDocCommandClass();
command.OnCreate(m_mapControl.Object);
command.OnClick();
}
private void menuSaveDoc_Click(object sender, EventArgs e)
{
//execute Save Document command
if (m_mapControl.CheckMxFile(m_mapDocumentName))
{
//create a new instance of a MapDocument
IMapDocument mapDoc = new MapDocumentClass();
mapDoc.Open(m_mapDocumentName, string.Empty);
//Make sure that the MapDocument is not readonly
if (mapDoc.get_IsReadOnly(m_mapDocumentName))
{
MessageBox.Show("Map document is read only!");
mapDoc.Close();
return;
}
//Replace its contents with the current map
mapDoc.ReplaceContents((IMxdContents)m_mapControl.Map);
//save the MapDocument in order to persist it
mapDoc.Save(mapDoc.UsesRelativePaths, false);
//close the MapDocument
mapDoc.Close();
}
}
private void menuSaveAs_Click(object sender, EventArgs e)
{
//execute SaveAs Document command
ICommand command = new ControlsSaveAsDocCommandClass();
command.OnCreate(m_mapControl.Object);
command.OnClick();
}
private void menuExitApp_Click(object sender, EventArgs e)
{
//exit the application
Application.Exit();
}
#endregion
//加载主地图的时候，也加载鹰眼地图数据
private void axMapControl1_OnMapReplaced(object sender, IMapControlEvents2_OnMapReplacedEvent e)
{
//get the current document name from the MapControl
m_mapDocumentName = m_mapControl.DocumentFilename;
//if there is no MapDocument, diable the Save menu and clear the statusbar
if (m_mapDocumentName == string.Empty)
{
menuSaveDoc.Enabled = false;
statusBarXY.Text = string.Empty;
}
else
{
//enable the Save manu and write the doc name to the statusbar
menuSaveDoc.Enabled = true;
statusBarXY.Text = System.IO.Path.GetFileName(m_mapDocumentName);
}
if (this.axMapControl1.LayerCount > 0)
{
this.axMapControl2.ClearLayers();
this.axMapControl2.Map = new ESRI.ArcGIS.Carto.MapClass();
for (int i = 0; i <= (axMapControl1.Map.LayerCount - 1); i++)
{
//加载鹰眼视图数据
axMapControl2.AddLayer(axMapControl1.get_Layer(i));
}
axMapControl2.Extent = axMapControl1.Extent;//设置最大全屏设置
axMapControl2.Refresh();
}
}
private void axMapControl1_OnMouseMove(object sender, IMapControlEvents2_OnMouseMoveEvent e)
{
statusBarXY.Text = string.Format("{0}, {1} {2}", e.mapX.ToString("#######.##"), e.mapY.ToString("#######.##"), axMapControl1.MapUnits.ToString().Substring(4));
}
private void axMapControl1_OnExtentUpdated(object sender, IMapControlEvents2_OnExtentUpdatedEvent e)
{
//得到新范围
IEnvelope pEnvelop = (IEnvelope)e.newEnvelope;
try
{
if (this.axMapControl2.Map.LayerCount <= 0) return;
}
catch { return; }
IGraphicsContainer pGraphicsContainer = this.axMapControl2.Map as IGraphicsContainer;
IActiveView pActiveView = pGraphicsContainer as IActiveView;
//在绘制前。清除axMapControl2 中的任何图形元素
pGraphicsContainer.DeleteAllElements();
IRectangleElement pRectangleEle = new RectangleElementClass();
IElement pElement = pRectangleEle as IElement;
pElement.Geometry = pEnvelop;
//设置鹰眼中的红线框
IRgbColor pColor = new RgbColorClass();
pColor.Red = 255;
pColor.Green = 0;
pColor.Blue = 0;
pColor.Transparency = 255;
//产生一个线符号对象
ILineSymbol pOutline = new SimpleLineSymbolClass();
pOutline.Width = 1;
pOutline.Color = pColor;
//设置颜色属性
pColor = new RgbColorClass();
pColor.Red = 255;
pColor.Green = 0;
pColor.Blue = 0;
pColor.Transparency = 0;
//设置填充符号的属性
IFillSymbol pFillSymbol = new SimpleFillSymbolClass();
pFillSymbol.Color = pColor;
pFillSymbol.Outline = pOutline;
IFillShapeElement pFillShapeEle = pElement as IFillShapeElement;
pFillShapeEle.Symbol = pFillSymbol;
pGraphicsContainer.AddElement((IElement)pFillShapeEle, 0);
pActiveView.PartialRefresh(esriViewDrawPhase.esriViewGraphics, null, null);
}
///
/// 鹰眼地图移动，改变主地图
///
///
///
private void axMapControl2_OnMouseDown(object sender, IMapControlEvents2_OnMouseDownEvent e)
{
if (axMapControl2.Map.LayerCount > 0)
{
if (e.button == 1)
{
IPoint pPoint = new PointClass();
pPoint.PutCoords(e.mapX, e.mapY);
axMapControl1.CenterAt(pPoint);
this.axMapControl1.ActiveView.PartialRefresh(esriViewDrawPhase.esriViewGeography, null, null);
}
else if (e.button == 2)
{
IEnvelope pEnv = this.axMapControl2.TrackRectangle();
axMapControl1.Extent = pEnv;
this.axMapControl1.ActiveView.PartialRefresh(esriViewDrawPhase.esriViewGeography, null, null);
}
}
}
///
/// 鹰眼地图右键移动，改变主地图
///
///
///
private void axMapControl2_OnMouseMove(object sender, IMapControlEvents2_OnMouseMoveEvent e)
{
if (e.button == 1) //设置右键
{
IPoint pPoint = new PointClass();
pPoint.PutCoords(e.mapX, e.mapY);
this.axMapControl1.CenterAt(pPoint);
this.axMapControl1.ActiveView.PartialRefresh(esriViewDrawPhase.esriViewGeography, null, null);
}
}
}
}