Отправлено xc164 24 февраля 2004 г. 08:37 В ответ на: Народ , подскажите пожалуйста , кто сталкивался с проблеммой высококачественного отображения осциолограммы из данных с USB шины в билдере. отправлено tolian 23 февраля 2004 г. 23:48

//---------------------------------------------------------------------------
/* отрисовка развертки на экране осциллографа                                 */
int DrawScanning(float ydesired_speed, float yspeed,  float yUm, float yIm, float yPWM, int cmd)
{static float aDesiredSpeed[MAX_POINT];
 static float aSpeed[MAX_POINT];
 static float aIm [MAX_POINT];
 static float aUm [MAX_POINT];
 static float aPWM[MAX_POINT];
 static TPoint DesiredSpeed[MAX_POINT];
 static TPoint Speed[MAX_POINT];
 static TPoint Im [MAX_POINT];
 static TPoint Um [MAX_POINT];
 static TPoint PWM[MAX_POINT];
 static int i,x;
// char str[32];
 float k;
 static float _ox=0, ox;
 k= fabs((float)xscale /(((float)xs) * xstep));
 switch(cmd)
    {case 1:for(x=1; x < 2048; x++)
                {aDesiredSpeed[x-1]= aSpeed[x-1]= aIm[x-1]= aUm[x-1]= aPWM[x-1]= 0.0;
                 DesiredSpeed[x-1].x= Speed[x-1].x= Im[x-1].x= Um[x-1].x= PWM[x-1].x= x;
               }
            npoint=0;
            break;
     case 4:_ox+=1;
            for(ox=_ox - k;ox >= 0; ox-=k)
                {if( npoint <= Form1->Image1->Width)
                    {aDesiredSpeed[npoint]=ydesired_speed;
                     aSpeed[npoint]=       yspeed;
                     aIm[npoint]=          yIm;
                     aUm[npoint]=          yUm;
                     aPWM[npoint]=         yPWM;
                     npoint++;
                     _ox=ox;
                    }
                }
            break;
     case 0:_ox+=1;
           for(ox=_ox - k; ox >= 0; ox-=k)
                {//int tmp[MAX_POINT];
//                 memcpy( (char *)tmp, (char *)aDesiredSpeed + sizeof(int), sizeof(int)* Form1->Image1->Width);
//                 memcpy( (char *)aDesiredSpeed, (char *)tmp, sizeof(int)* Form1->Image1->Width);
//                 memcpy( (char *)tmp, (char *)aSpeed + sizeof(int), sizeof(int)* Form1->Image1->Width);
//                 memcpy( (char *)aSpeed, (char *)tmp, sizeof(int)* Form1->Image1->Width);
//                 memcpy( (char *)tmp, (char *)aIm + sizeof(int), sizeof(int)* Form1->Image1->Width);
//                 memcpy( (char *)aIm, (char *)tmp, sizeof(int)* Form1->Image1->Width);
//                 memcpy( (char *)tmp, (char *)aUm + sizeof(int), sizeof(int)* Form1->Image1->Width);
//                 memcpy( (char *)aUm, (char *)tmp, sizeof(int)* Form1->Image1->Width);
//                 memcpy( (char *)tmp, (char *)aPWM + sizeof(int), sizeof(int)* Form1->Image1->Width);
//                 memcpy( (char *)aPWM, (char *)tmp, sizeof(int)* Form1->Image1->Width);
                 for(x=0; x < Form1->Image1->Width; x++)
                    {aDesiredSpeed[x]= aDesiredSpeed[x+1];
                     aSpeed[x]=  aSpeed[x+1];
                     aIm[x]=     aIm[x+1];
                     aUm[x]=     aUm[x+1];
                     aPWM[x]=    aPWM[x+1];
                    }
                 aDesiredSpeed[Form1->Image1->Width]= ydesired_speed;
                 aSpeed[Form1->Image1->Width]=  yspeed;
                 aIm[Form1->Image1->Width]=     yIm;
                 aUm[Form1->Image1->Width]=     yUm;
                 aPWM[Form1->Image1->Width]=    yPWM;
                 npoint++;
                 _ox=ox;
                }
            break;
    }
 if( npoint > Form1->Image1->Width)
    npoint= Form1->Image1->Width +1;
 if(cmd==4) return npoint;
 if((Form1->CheckBox2->Checked) && (tmp_file==NULL))
    {Form1->Image1->Refresh();
     return npoint;
    }
 if(cmd != 6 && cmd != 4) return npoint;
 Form1->Image1->Canvas->Lock();
 Form1->Image1->Canvas->Brush->Color =  clWhite;
 Form1->Image1->Canvas->Brush->Style =  bsSolid;
 Form1->Image1->Canvas->FillRect(Rect(0,0,Form1->Image1->Width,Form1->Image1->Height));
 draw_grid();
 if(Form1->CSpinEdit3->Value > 20)  Form1->CSpinEdit3->Value=1;
 Form1->Image1->Canvas->Pen->Width= Form1->CSpinEdit3->Value;
 if(Form1->CheckBox3->Checked)
    {Form1->Image1->Canvas->Pen->Color = desired_speed_color;
     for(i=0; i<= Form1->Image1->Width; i++)
            DesiredSpeed[i].y= Form1->Image1->Height/2 -(int)(aDesiredSpeed[i] * Fs_yscale * (float)ys);
     Form1->Image1->Canvas->Polyline(DesiredSpeed,Form1->Image1->Width);
    }
 if(Form1->CheckBox4->Checked)
    {Form1->Image1->Canvas->Pen->Color = speed_color;
     for(i=0;i<= Form1->Image1->Width; i++)
            Speed[i].y= Form1->Image1->Height/2 -(int)(aSpeed[i] * F_yscale * (float)ys);
     Form1->Image1->Canvas->Polyline(Speed,Form1->Image1->Width);
    }
 if(Form1->CheckBox5->Checked)
    {Form1->Image1->Canvas->Pen->Color = Im_color;
     for(i=0;i<= Form1->Image1->Width; i++)
            Im[i].y= Form1->Image1->Height/2 -(int)(aIm[i] * I_yscale * (float)ys);
     Form1->Image1->Canvas->Polyline(Im,Form1->Image1->Width);
    }
 if(Form1->CheckBox6->Checked)
    {Form1->Image1->Canvas->Pen->Color = Um_color;
     for(i=0;i<= Form1->Image1->Width; i++)
            Um[i].y= Form1->Image1->Height/2 -(int)(aUm[i] * U_yscale * (float)ys);
     Form1->Image1->Canvas->Polyline(Um,Form1->Image1->Width);
    }
 if(Form1->CheckBox7->Checked)
    {Form1->Image1->Canvas->Pen->Color = PWM_color;
     for(i=0;i<= Form1->Image1->Width; i++)
            PWM[i].y= Form1->Image1->Height/2 -(int)(aPWM[i] * PWM_yscale * (float)ys);
     Form1->Image1->Canvas->Polyline(PWM,Form1->Image1->Width);
    }
 Form1->Image1->Canvas->Unlock();
 draw_grid();
// Form1->Image1->Repaint();
// Form1->Image1->Update();
 return npoint;
}