using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
namespace DbInMo
{
/// <summary>
/// Form1 的摘要說明。
/// </summary>
public class 渲染示例 : System.Windows.Forms.Form
{
private AxMapObjects2.AxMap map;
private System.Windows.Forms.Button 直方圖;
private System.Windows.Forms.Button 餅圖;
private System.Windows.Forms.Button 點密度;
private System.Windows.Forms.Button 按值渲染;
private System.Windows.Forms.Button 分類渲染;
private System.Windows.Forms.Button Z值渲染;
private System.Windows.Forms.Button 組渲染;
private System.Windows.Forms.Button 退出;
private System.Windows.Forms.Panel 操作板;
private System.Windows.Forms.Button 刪除所有渲染;
private System.Windows.Forms.Panel panel1;
private System.Windows.Forms.Button 全圖;
private System.Windows.Forms.Button 拖動;
private System.Windows.Forms.Button 縮小;
private System.Windows.Forms.Button 放大;
private System.Windows.Forms.Panel 分隔符;
private System.Windows.Forms.Button 標(biāo)注渲染;
/// <summary>
/// 必需的設(shè)計器變量。
/// </summary>
private System.ComponentModel.Container components = null;
public 渲染示例()
{
//
// Windows 窗體設(shè)計器支持所必需的
//
InitializeComponent();
//
// TODO: 在 InitializeComponent 調(diào)用后添加任何構(gòu)造函數(shù)代碼
//
}
/// <summary>
/// 清理所有正在使用的資源。
/// </summary>
protected override void Dispose( bool disposing )
{
if( disposing )
{
if (components != null)
{
components.Dispose();
}
}
base.Dispose( disposing );
}
#region Windows 窗體設(shè)計器生成的代碼
/// <summary>
/// 設(shè)計器支持所需的方法 - 不要使用代碼編輯器修改
/// 此方法的內(nèi)容。
/// </summary>
private void InitializeComponent()
{
System.Resources.ResourceManager resources = new System.Resources.ResourceManager(typeof(渲染示例));
this.map = new AxMapObjects2.AxMap();
this.操作板 = new System.Windows.Forms.Panel();
this.直方圖 = new System.Windows.Forms.Button();
this.餅圖 = new System.Windows.Forms.Button();
this.點密度 = new System.Windows.Forms.Button();
this.按值渲染 = new System.Windows.Forms.Button();
this.分類渲染 = new System.Windows.Forms.Button();
this.Z值渲染 = new System.Windows.Forms.Button();
this.組渲染 = new System.Windows.Forms.Button();
this.退出 = new System.Windows.Forms.Button();
this.標(biāo)注渲染 = new System.Windows.Forms.Button();
this.刪除所有渲染 = new System.Windows.Forms.Button();
this.panel1 = new System.Windows.Forms.Panel();
this.全圖 = new System.Windows.Forms.Button();
this.拖動 = new System.Windows.Forms.Button();
this.縮小 = new System.Windows.Forms.Button();
this.放大 = new System.Windows.Forms.Button();
this.分隔符 = new System.Windows.Forms.Panel();
((System.ComponentModel.ISupportInitialize)(this.map)).BeginInit();
this.操作板.SuspendLayout();
this.SuspendLayout();
//
// map
//
this.map.Dock = System.Windows.Forms.DockStyle.Fill;
this.map.Location = new System.Drawing.Point(0, 0);
this.map.Name = "map";
this.map.OcxState = ((System.Windows.Forms.AxHost.State)(resources.GetObject("map.OcxState")));
this.map.Size = new System.Drawing.Size(616, 429);
this.map.TabIndex = 0;
this.map.MouseDownEvent += new AxMapObjects2._DMapEvents_MouseDownEventHandler(this.map_MouseDownEvent);
//
// 操作板
//
this.操作板.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D;
this.操作板.Controls.Add(this.刪除所有渲染);
this.操作板.Controls.Add(this.panel1);
this.操作板.Controls.Add(this.全圖);
this.操作板.Controls.Add(this.拖動);
this.操作板.Controls.Add(this.縮小);
this.操作板.Controls.Add(this.放大);
this.操作板.Controls.Add(this.分隔符);
this.操作板.Controls.Add(this.標(biāo)注渲染);
this.操作板.Controls.Add(this.退出);
this.操作板.Controls.Add(this.組渲染);
this.操作板.Controls.Add(this.Z值渲染);
this.操作板.Controls.Add(this.分類渲染);
this.操作板.Controls.Add(this.按值渲染);
this.操作板.Controls.Add(this.點密度);
this.操作板.Controls.Add(this.餅圖);
this.操作板.Controls.Add(this.直方圖);
this.操作板.Dock = System.Windows.Forms.DockStyle.Right;
this.操作板.Location = new System.Drawing.Point(496, 0);
this.操作板.Name = "操作板";
this.操作板.Size = new System.Drawing.Size(120, 429);
this.操作板.TabIndex = 1;
//
// 直方圖
//
this.直方圖.Dock = System.Windows.Forms.DockStyle.Top;
this.直方圖.Location = new System.Drawing.Point(0, 0);
this.直方圖.Name = "直方圖";
this.直方圖.Size = new System.Drawing.Size(116, 24);
this.直方圖.TabIndex = 0;
this.直方圖.Text = "直方圖";
this.直方圖.Click += new System.EventHandler(this.直方圖_Click);
//
// 餅圖
//
this.餅圖.Dock = System.Windows.Forms.DockStyle.Top;
this.餅圖.Location = new System.Drawing.Point(0, 24);
this.餅圖.Name = "餅圖";
this.餅圖.Size = new System.Drawing.Size(116, 24);
this.餅圖.TabIndex = 1;
this.餅圖.Text = "餅圖";
this.餅圖.Click += new System.EventHandler(this.餅圖_Click);
//
// 點密度
//
this.點密度.Dock = System.Windows.Forms.DockStyle.Top;
this.點密度.Location = new System.Drawing.Point(0, 48);
this.點密度.Name = "點密度";
this.點密度.Size = new System.Drawing.Size(116, 23);
this.點密度.TabIndex = 2;
this.點密度.Text = "點密度";
this.點密度.Click += new System.EventHandler(this.點密度_Click);
//
// 按值渲染
//
this.按值渲染.Dock = System.Windows.Forms.DockStyle.Top;
this.按值渲染.Location = new System.Drawing.Point(0, 71);
this.按值渲染.Name = "按值渲染";
this.按值渲染.Size = new System.Drawing.Size(116, 23);
this.按值渲染.TabIndex = 3;
this.按值渲染.Text = "按值渲染";
this.按值渲染.Click += new System.EventHandler(this.按值渲染_Click);
//
// 分類渲染
//
this.分類渲染.Dock = System.Windows.Forms.DockStyle.Top;
this.分類渲染.Location = new System.Drawing.Point(0, 94);
this.分類渲染.Name = "分類渲染";
this.分類渲染.Size = new System.Drawing.Size(116, 23);
this.分類渲染.TabIndex = 4;
this.分類渲染.Text = "分類渲染";
this.分類渲染.Click += new System.EventHandler(this.分類渲染_Click);
//
// Z值渲染
//
this.Z值渲染.Dock = System.Windows.Forms.DockStyle.Top;
this.Z值渲染.Location = new System.Drawing.Point(0, 117);
this.Z值渲染.Name = "Z值渲染";
this.Z值渲染.Size = new System.Drawing.Size(116, 23);
this.Z值渲染.TabIndex = 5;
this.Z值渲染.Text = "Z值渲染";
this.Z值渲染.Click += new System.EventHandler(this.Z值渲染_Click);
//
// 組渲染
//
this.組渲染.Dock = System.Windows.Forms.DockStyle.Top;
this.組渲染.Location = new System.Drawing.Point(0, 140);
this.組渲染.Name = "組渲染";
this.組渲染.Size = new System.Drawing.Size(116, 23);
this.組渲染.TabIndex = 6;
this.組渲染.Text = "組渲染";
this.組渲染.Click += new System.EventHandler(this.組渲染_Click);
//
// 退出
//
this.退出.Dock = System.Windows.Forms.DockStyle.Bottom;
this.退出.Location = new System.Drawing.Point(0, 402);
this.退出.Name = "退出";
this.退出.Size = new System.Drawing.Size(116, 23);
this.退出.TabIndex = 7;
this.退出.Text = "退出";
this.退出.Click += new System.EventHandler(this.退出_Click);
//
// 標(biāo)注渲染
//
this.標(biāo)注渲染.Dock = System.Windows.Forms.DockStyle.Top;
this.標(biāo)注渲染.Location = new System.Drawing.Point(0, 163);
this.標(biāo)注渲染.Name = "標(biāo)注渲染";
this.標(biāo)注渲染.Size = new System.Drawing.Size(116, 23);
this.標(biāo)注渲染.TabIndex = 7;
this.標(biāo)注渲染.Text = "標(biāo)注渲染";
this.標(biāo)注渲染.Click += new System.EventHandler(this.標(biāo)注渲染_Click);
//
// 刪除所有渲染
//
this.刪除所有渲染.Dock = System.Windows.Forms.DockStyle.Top;
this.刪除所有渲染.Location = new System.Drawing.Point(0, 319);
this.刪除所有渲染.Name = "刪除所有渲染";
this.刪除所有渲染.Size = new System.Drawing.Size(116, 23);
this.刪除所有渲染.TabIndex = 22;
this.刪除所有渲染.Text = "刪除所有渲染";
this.刪除所有渲染.Click += new System.EventHandler(this.刪除所有渲染_Click);
//
// panel1
//
this.panel1.Dock = System.Windows.Forms.DockStyle.Top;
this.panel1.Location = new System.Drawing.Point(0, 299);
this.panel1.Name = "panel1";
this.panel1.Size = new System.Drawing.Size(116, 20);
this.panel1.TabIndex = 21;
//
// 全圖
//
this.全圖.Dock = System.Windows.Forms.DockStyle.Top;
this.全圖.Location = new System.Drawing.Point(0, 276);
this.全圖.Name = "全圖";
this.全圖.Size = new System.Drawing.Size(116, 23);
this.全圖.TabIndex = 20;
this.全圖.Text = "全圖";
this.全圖.Click += new System.EventHandler(this.全圖_Click);
//
// 拖動
//
this.拖動.Dock = System.Windows.Forms.DockStyle.Top;
this.拖動.Location = new System.Drawing.Point(0, 253);
this.拖動.Name = "拖動";
this.拖動.Size = new System.Drawing.Size(116, 23);
this.拖動.TabIndex = 19;
this.拖動.Text = "拖動";
this.拖動.Click += new System.EventHandler(this.拖動_Click);
//
// 縮小
//
this.縮小.Dock = System.Windows.Forms.DockStyle.Top;
this.縮小.Location = new System.Drawing.Point(0, 230);
this.縮小.Name = "縮小";
this.縮小.Size = new System.Drawing.Size(116, 23);
this.縮小.TabIndex = 18;
this.縮小.Text = "縮小";
this.縮小.Click += new System.EventHandler(this.縮小_Click);
//
// 放大
//
this.放大.Dock = System.Windows.Forms.DockStyle.Top;
this.放大.Location = new System.Drawing.Point(0, 207);
this.放大.Name = "放大";
this.放大.Size = new System.Drawing.Size(116, 23);
this.放大.TabIndex = 17;
this.放大.Text = "放大";
this.放大.Click += new System.EventHandler(this.放大_Click);
//
// 分隔符
//
this.分隔符.Dock = System.Windows.Forms.DockStyle.Top;
this.分隔符.Location = new System.Drawing.Point(0, 186);
this.分隔符.Name = "分隔符";
this.分隔符.Size = new System.Drawing.Size(116, 21);
this.分隔符.TabIndex = 16;
//
// 渲染示例
//
this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
this.ClientSize = new System.Drawing.Size(616, 429);
this.Controls.Add(this.操作板);
this.Controls.Add(this.map);
this.Name = "渲染示例";
this.Text = "渲染示例";
this.WindowState = System.Windows.Forms.FormWindowState.Maximized;
((System.ComponentModel.ISupportInitialize)(this.map)).EndInit();
this.操作板.ResumeLayout(false);
this.ResumeLayout(false);
}
#endregion
/// <summary>
/// 應(yīng)用程序的主入口點。
/// </summary>
[STAThread]
static void Main()
{
Application.Run(new 渲染示例());
}
/// <summary>
/// 退出系統(tǒng)
/// </summary>
private void 退出_Click(object sender, System.EventArgs e)
{
this.Close();
}
/// <summary>
/// 圖表渲染，值方圖
/// </summary>
private void 直方圖_Click(object sender, System.EventArgs e)
{
//直方圖的例子中使用Lakers圖層
//
//定義圖標(biāo)渲染變量
MapObjects2.ChartRenderer cr = new MapObjects2.ChartRendererClass();
//設(shè)置渲染類型為直方圖
cr.ChartType = MapObjects2.ChartTypeConstants.moBar;
//設(shè)置直方圖顯示的字段個數(shù)為兩個，就是直方圖顯示兩個柱子
cr.FieldCount = 2;
//設(shè)置第一個字段，請參看lakes.dbf
cr.set_Field(0,"SURF_ELEV");
//設(shè)置這個直方圖的柱子顏色為紅色
cr.set_Color(0,(uint)MapObjects2.ColorConstants.moRed);
//設(shè)置第二個柱子
cr.set_Field(1,"DEPTH");
cr.set_Color(1,(uint)MapObjects2.ColorConstants.moGreen);
MapObjects2.MapLayer lyr = (MapObjects2.MapLayer)(map.Layers.Item("lakes"));
lyr.Renderer = cr;
//使用Refresh()刷新老也是刷新不好，正沒辦法。。。，設(shè)為全圖倒是不錯的注意，^_^
map.Refresh();
}
/// <summary>
/// 全圖視野
/// </summary>
private void 全圖_Click(object sender, System.EventArgs e)
{
map.Extent = map.FullExtent;
}
/// <summary>
/// 拖動，只設(shè)置圖標(biāo)
/// </summary>
private void 拖動_Click(object sender, System.EventArgs e)
{
map.MousePointer = MapObjects2.MousePointerConstants.moPan;
}
/// <summary>
/// 縮小，只設(shè)置圖標(biāo)
/// </summary>
private void 縮小_Click(object sender, System.EventArgs e)
{
map.MousePointer = MapObjects2.MousePointerConstants.moZoomOut;
}
/// <summary>
/// 放大，只設(shè)置圖標(biāo)
/// </summary>
private void 放大_Click(object sender, System.EventArgs e)
{
map.MousePointer = MapObjects2.MousePointerConstants.moZoomIn;
}
/// <summary>
/// 鼠標(biāo)按下時間，處理地圖放大、縮小、拖動等。
/// </summary>
private void map_MouseDownEvent(object sender, AxMapObjects2._DMapEvents_MouseDownEvent e)
{
MapObjects2.Rectangle rect;
MapObjects2.Point pt = map.ToMapPoint(e.x,e.y);
if(e.button == 2)//右鍵點擊取消
{
map.MousePointer = MapObjects2.MousePointerConstants.moDefault;
}
if(map.MousePointer == MapObjects2.MousePointerConstants.moPan)//拖動
{
map.Pan();
}
else if(map.MousePointer == MapObjects2.MousePointerConstants.moZoomIn)//放大
{
rect = map.TrackRectangle();
if(rect == null|| (rect.Width < 0.00005) || (rect.Height < 0.00005))
{
rect = map.Extent;
rect.ScaleRectangle(0.6667);
rect.Offset(-(rect.Center.X - pt.X),-(rect.Center.Y - pt.Y));
}
map.Extent = rect;
}
else if(map.MousePointer == MapObjects2.MousePointerConstants.moZoomOut)//縮小
{
rect = map.TrackRectangle();
if ((null == rect) || (rect.Width < 0.00005) || (rect.Height < 0.00005))
{
rect = map.Extent;
rect.ScaleRectangle(1.5);
rect.Offset(-(rect.Center.X - pt.X),-(rect.Center.Y - pt.Y));
}
else
{
double dRate = map.Extent.Width / rect.Width * 10;
rect.ScaleRectangle(dRate);
}
map.Extent = rect;
}
}
/// <summary>
/// 圖表渲染，使用餅圖
/// </summary>
private void 餅圖_Click(object sender, System.EventArgs e)
{
//餅圖的例子中使用Lakers圖層
//過程和直方圖一樣
//
//定義圖標(biāo)渲染變量
MapObjects2.ChartRenderer cr = new MapObjects2.ChartRendererClass();
//設(shè)置渲染類型為餅圖
cr.ChartType = MapObjects2.ChartTypeConstants.moPie;
//設(shè)置餅圖顯示的字段個數(shù)為兩個，就是餅圖顯示兩半
cr.FieldCount = 2;
//設(shè)置第一個字段，請參看lakes.dbf
cr.set_Field(0,"SURF_ELEV");
//設(shè)置這個餅圖的一半顏色為紅色
cr.set_Color(0,(uint)MapObjects2.ColorConstants.moRed);
//設(shè)置第二半
cr.set_Field(1,"DEPTH");
cr.set_Color(1,(uint)MapObjects2.ColorConstants.moGreen);
//添加到地圖上
MapObjects2.MapLayer lyr = (MapObjects2.MapLayer)(map.Layers.Item("lakes"));
lyr.Renderer = cr;
//刷新
map.Refresh();
}
/// <summary>
/// 點密度渲染
/// </summary>
private void 點密度_Click(object sender, System.EventArgs e)
{
//點密度的例子中使用lakes圖層
//
//定義點密度渲染變量
MapObjects2.DotDensityRenderer ddr = new MapObjects2.DotDensityRendererClass();
//設(shè)置渲染的數(shù)據(jù)字段，請參看lakes.dbf
ddr.Field = "DEPTH";
//點大小
ddr.DotSize = 3;
//點顏色
ddr.DotColor = (uint)MapObjects2.ColorConstants.moBlue;
ddr.DotValue = 1;
ddr.DrawBackground = true;
//添加到地圖上
MapObjects2.MapLayer lyr = (MapObjects2.MapLayer)(map.Layers.Item("lakes"));
lyr.Renderer = ddr;
//刷新
map.Refresh();
}
/// <summary>
/// 按值渲染
/// </summary>
private void 按值渲染_Click(object sender, System.EventArgs e)
{
//按值渲染的例子中使用country圖層，這里利用按值渲染，將每個國家用不同的顏色顯示
//
//字符串s變量，很像Delphi中的TStringList，^_^
MapObjects2.Strings strs = new MapObjects2.StringsClass();
//圖層變量，引用country圖層
MapObjects2.MapLayer lyr = (MapObjects2.MapLayer)map.Layers.Item("country");
//Recordset對象，我將在以后的文章中陸續(xù)講解關(guān)于MapObjects2.2中使用數(shù)據(jù)集變量的內(nèi)容！！！
//使用方法大致與VB中對數(shù)據(jù)表的操作差不多。
MapObjects2.Recordset rc = lyr.Records;
//這個循環(huán)獲取所有國家的簡稱代碼列表
while(!rc.EOF)
{
strs.Add(rc.Fields.Item("FIPS_CODE").ValueAsString);
rc.MoveNext();
}
//定義按值渲染對象
MapObjects2.ValueMapRenderer vmr = new MapObjects2.ValueMapRendererClass();
//將其添加到圖層
lyr.Renderer = vmr;
//設(shè)置渲染使用的字段，請參看country.dbf文件
vmr.Field = "FIPS_CODE";
//渲染的個數(shù)
vmr.ValueCount = strs.Count;
//缺省值
vmr.UseDefault = true;
MapObjects2.Symbol sym = vmr.DefaultSymbol;
sym.Color = (uint)MapObjects2.ColorConstants.moYellow;//缺省顏色為黃色
//渲染過程
for(int i=0;i<vmr.ValueCount;i++)
{
vmr.set_Value((short)i,strs.Item((short)i));
}
//刷新
map.Refresh();
}
/// <summary>
/// 分類渲染
/// </summary>
private void 分類渲染_Click(object sender, System.EventArgs e)
{
//分類渲染的例子使用country圖層
//
//圖層變量引用cities層
MapObjects2.MapLayer lyr = (MapObjects2.MapLayer)(map.Layers.Item("cities"));
//定義分類渲染變量
MapObjects2.ClassBreaksRenderer cbr = new MapObjects2.ClassBreaksRendererClass();
//添加到地圖
lyr.Renderer = cbr;
//設(shè)置符號類型為點，也可使用其他類型，請自己試驗，方法大概都差不多
cbr.SymbolType = MapObjects2.SymbolTypeConstants.moPointSymbol;
//設(shè)置字段，請參看cities.dbf文件
cbr.Field = "POPULATION";
//Statistics對象經(jīng)常配合分類渲染使用，他表示用一個Recordset對象的CalculateStatistics方法
// 對一個數(shù)值字段的統(tǒng)計計算結(jié)果
MapObjects2.Statistics stat = lyr.Records.CalculateStatistics("POPULATION");
//Mean――平均值，StdDev――均方差
double fbv = stat.Mean - (stat.StdDev * 3);
for(int i=0;i<6;i++)
{
if((fbv >= stat.Min)&&fbv <= stat.Max)
{
//分類個數(shù)，依次加一
cbr.BreakCount = (short)(cbr.BreakCount + 1);
//設(shè)置分類
cbr.set_Break((short)(cbr.BreakCount - 1),fbv);
}
fbv += stat.StdDev;
}
//SizeSymbols方法制定頭尾的大小用來表現(xiàn)點特征大小漸進效果
cbr.SizeSymbols(3,8);
//RampColors方法設(shè)置顏色從白色到紅色的漸進顯示
cbr.RampColors((uint)MapObjects2.ColorConstants.moWhite,(uint)MapObjects2.ColorConstants.moRed);
//刷新
map.Refresh();
}
/// <summary>
/// Z值渲染
/// </summary>
private void Z值渲染_Click(object sender, System.EventArgs e)
{
//本來想好好搞搞，可是我找不到帶有Z值的地圖，哈哈，認(rèn)了吧，下面給出基本的語句，有興趣的
//兄弟姐妹們可以自己試試
// MapObjects2.ZRenderer zr = new MapObjects2.ZRendererClass();
// //Z值分成幾部分？
// zr.BreakCount = 2;
// //設(shè)置各個部分的分界線
// zr.set_Break(0,100);
// zr.set_Break(1,1000);
// //設(shè)置特征類型
// zr.SymbolType = MapObjects2.SymbolTypeConstants.moPointSymbol;
// MapObjects2.Symbol sym;
// for(short i=0;i<zr.BreakCount;i++)
// {
// //獲取特征
// sym = zr.get_Symbol(i);
// //設(shè)置特征屬性，定義一個顏色數(shù)組，將不同特征設(shè)置不同顏色，效果會明顯些
// sym.Color = (uint)MapObjects2.ColorConstants.moRed;
// sym.Size = 6;
// sym.Style = MapObjects2.MarkerStyleConstants.moTriangleMarker;
// }
// //添加到地圖
// MapObjects2.MapLayer lyr = (MapObjects2.MapLayer)map.Layers.Item("帶有Z值的圖層名稱");
// lyr.Renderer = zr;
// //刷新
// map.Refresh();
}
/// <summary>
/// 組渲染
/// </summary>
private void 組渲染_Click(object sender, System.EventArgs e)
{
//組渲染其實就是組合渲染，一般定義多個渲染方式，然后使用如下的語句進行組合
MapObjects2.MapLayer lyr = (MapObjects2.MapLayer)map.Layers.Item("country");
//標(biāo)注渲染
MapObjects2.LabelRenderer lr = new MapObjects2.LabelRendererClass();
lr.Field = "NAME";
lr.get_Symbol(0).Color = (uint)MapObjects2.ColorConstants.moBlack;
lr.get_Symbol(0).Font.Size = 8;
//按值渲染
MapObjects2.Strings strs = new MapObjects2.StringsClass();
MapObjects2.Recordset rc = lyr.Records;
while(!rc.EOF)
{
strs.Add(rc.Fields.Item("FIPS_CODE").ValueAsString);
rc.MoveNext();
}
MapObjects2.ValueMapRenderer vmr = new MapObjects2.ValueMapRendererClass();
vmr.Field = "FIPS_CODE";
vmr.ValueCount = strs.Count;
vmr.UseDefault = true;
MapObjects2.Symbol sym = vmr.DefaultSymbol;
sym.Color = (uint)MapObjects2.ColorConstants.moYellow;
for(int i=0;i<vmr.ValueCount;i++)
{
vmr.set_Value((short)i,strs.Item((short)i));
}
//將二者組合，添加到圖層
MapObjects2.GroupRenderer gr = new MapObjects2.GroupRendererClass();
gr.Add(vmr);
gr.Add(lr);
lyr.Renderer = gr;
map.Refresh();
}
/// <summary>
/// 刪除所有渲染
/// </summary>
private void 刪除所有渲染_Click(object sender, System.EventArgs e)
{
MapObjects2.MapLayer lyr;
for(int i=0;i<map.Layers.Count;i++)
{
lyr = (MapObjects2.MapLayer)map.Layers.Item(i);
lyr.Renderer = new MapObjects2.LabelRendererClass();
map.Refresh();
}
}
/// <summary>
/// 標(biāo)注渲染
/// </summary>
private void 標(biāo)注渲染_Click(object sender, System.EventArgs e)
{
MapObjects2.MapLayer lyr = (MapObjects2.MapLayer)map.Layers.Item("cities");
MapObjects2.LabelRenderer lr = new MapObjects2.LabelRendererClass();
lr.Field = "NAME";
lr.get_Symbol(0).Color = (uint)MapObjects2.ColorConstants.moBlack;
lr.get_Symbol(0).Font.Size = 8;
lyr.Renderer = lr;
map.Refresh();
}
}
}
