unit1.pas

来自「Delphi7编程80例(完全版)」· PAS 代码 · 共 71 行

unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, OleCtrls, MapObjects2_TLB, Menus;

type
  TForm1 = class(TForm)
    Map1: TMap;
    PopupMenu1: TPopupMenu;
    N1: TMenuItem;
    N2: TMenuItem;
    N3: TMenuItem;
    N4: TMenuItem;
    N5: TMenuItem;
    SaveDialog1: TSaveDialog;
    N6: TMenuItem;
    procedure N1Click(Sender: TObject);
    procedure N2Click(Sender: TObject);
    procedure N3Click(Sender: TObject);
    procedure N4Click(Sender: TObject);
    procedure N5Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.N1Click(Sender: TObject);
Var rect:Rectangle;
begin
rect:=Map1.Extent;
rect.ScaleRectangle(0.5); //放大两倍
Map1.Extent:=rect;
end;

procedure TForm1.N2Click(Sender: TObject);
Var rect:Rectangle;
begin
rect:=Map1.Extent;
rect.ScaleRectangle(2); //缩小为1/2
Map1.Extent:=rect;
end;

procedure TForm1.N3Click(Sender: TObject);
begin
Map1.Pan;//漫游地图
end;

procedure TForm1.N4Click(Sender: TObject);
begin
Application.Terminate;
end;

procedure TForm1.N5Click(Sender: TObject);
begin
 If SaveDialog1.Execute Then
Map1.ExportMapToJpeg(SaveDialog1.FileName+'.jpg',80,True,1, moLineSymbolsNotScaled);
end;

end.