unit1.~cpp

简单实现波形图绘制

//---------------------------------------------------------------------------

#include <vcl.h>
#pragma hdrstop

#include "Unit1.h"
//---------------------------------------------------------------------------
#pragma package(smart_init)
#pragma link "PERFGRAP"
#pragma resource "*.dfm"
TForm1 *Form1;
//---------------------------------------------------------------------------
__fastcall TForm1::TForm1(TComponent* Owner)
        : TForm(Owner)
{

}
//---------------------------------------------------------------------------

void __fastcall TForm1::Timer1Timer(TObject *Sender)
{
  //randomize();
  PerformanceGraph1->DataPoint((TColor)clBlack,random(100));
  //PerformanceGraph1->DataPoint((TColor)clRed,-20);
  PerformanceGraph1->Update();

  PerformanceGraph2->DataPoint((TColor)clBlack,random(50));
  PerformanceGraph2->Update();

    //PerformanceGraph1->Scale = random(100);
}
//---------------------------------------------------------------------------
void __fastcall TForm1::Button1Click(TObject *Sender)
{
  Timer1->Enabled = !(Timer1->Enabled);
}
//---------------------------------------------------------------------------