unit1.pas

学习delphi 时候用到的一些 有用的例子

unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs,DataCurve, ExtCtrls, StdCtrls;

type
  TForm1 = class(TForm)
    Image1: TImage;
    Timer1: TTimer;
    Button1: TButton;
    Button2: TButton;
    Edit1: TEdit;
    Button3: TButton;
    Button4: TButton;
    Button5: TButton;
    Button6: TButton;
    Button7: TButton;
    procedure FormShow(Sender: TObject);
    procedure Timer1Timer(Sender: TObject);
    procedure Button1Click(Sender: TObject);
    procedure Button2Click(Sender: TObject);
    procedure Button3Click(Sender: TObject);
    procedure FormClose(Sender: TObject; var Action: TCloseAction);
    procedure Button4Click(Sender: TObject);
    procedure Button5Click(Sender: TObject);
    procedure Button6Click(Sender: TObject);
    procedure Button7Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;
  dowork:tdatacurve;
  V:double;
implementation

{$R *.dfm}

procedure TForm1.FormShow(Sender: TObject);
begin
  dowork:=tdatacurve.Create(image1,timer1);
  dowork.Vmax:=15.25;
  dowork.Vmin:=0.405;
  dowork.Speed:=10;
  dowork.GridN:=5;
  dowork.TimeRange:=15;
  dowork.Resume;
  timer1.Interval:=round(1000/dowork.Speed);
  timer1.Enabled:=true;
end;

procedure TForm1.Timer1Timer(Sender: TObject);
var
  i:integer;
  j:integer;
begin
  for i:=0 to dowork.CurveNum- 1 do
  begin
      randomize;
      v:=random(531)/1000+11.2;
      dowork.SetValue(v,i);
  end;
end;

procedure TForm1.Button1Click(Sender: TObject);    //增加一条随机曲线
var
  mycurve:tcurveinfo;
  r,g,b:byte;
begin
  randomize;
  r:=random(255);
  randomize;
  g:=random(255);
  randomize;
  b:=random(255);
  mycurve.color:=rgb(r,g,b);
  mycurve.width:=1;
  dowork.AddCurve(mycurve);
end;

procedure TForm1.Button2Click(Sender: TObject);   //删除一条曲线
begin
  dowork.DelCurve(strtointdef(edit1.Text,0)-1);
end;

procedure TForm1.Button3Click(Sender: TObject);
begin
  dowork.Gridhide:=not dowork.Gridhide;
end;

procedure TForm1.FormClose(Sender: TObject; var Action: TCloseAction);
begin
  dowork.Free;
end;

procedure TForm1.Button4Click(Sender: TObject);
begin
  dowork.Pause:=not dowork.Pause;
end;

procedure TForm1.Button5Click(Sender: TObject);
begin
  dowork.Pause:=true;
  dowork.Image.Picture.SaveToFile('d:\aaa.jpg');
  sleep(1000);
  dowork.Pause:=false;
end;

procedure TForm1.Button6Click(Sender: TObject);
var
  range:double;
begin
  dowork.Pause:=true;
  range:=(dowork.Vmax-dowork.Vmin)/4;
  dowork.Vmax:=V+range;
  dowork.Vmin:=V-range;
  dowork.Resert;
end;

procedure TForm1.Button7Click(Sender: TObject);
begin
    form1.Close;
end;

end.