Graphics in c (Oscilloscope, 3 phase visualization )

 

#include<math.h>
#include<conio.h>
#include<stdio.h>
#include<graphics.h>
#include<dos.h>
main(){
      int driver, mode;
      int x,y,hz,vm;
      int mx,my,xmax, ymax;
      double sinA, angle;


clrscr();
int gd=DETECT,gm;
initgraph(&gd,&gm,"C:\\tc\\bgi");
//    driver = DETECT;
//     initgraph(&driver, &mode,"d:\\tcc\\bgi");
//*****************************
//** FOR HORIZONTAL AND VERTICAL LINE**//
   setcolor(3);
   xmax = getmaxx();
   ymax = getmaxy();

for(mx=0;mx<=640;mx=mx+40)
   line(mx,0, mx, ymax);

for(my=0;my<=479;my=my+40)
   line(0,my, xmax, my);

setcolor(15);
   line(xmax/2,0, xmax/2, ymax);
   line(0,ymax/2, xmax, ymax/2);
setcolor(12);
rectangle(0,0,xmax,ymax);

setfillstyle(1,0);
bar(1,1,79,39);
      printf("Hz(max-5Hz) =  ");
      scanf("%d",&hz);
      printf("Volt(max-6) =  ");
      scanf("%d",&vm);

    setfillstyle(1,0);
    bar(201,441,439,479);
    moveto(218,449);
    setcolor(15);
    settextstyle(2,0,6);
    outtext("SHEIKH.CSE-00315306015");

//***********************
 setfillstyle(1,0);
 bar(521,1,639,79);
//************************
setcolor(12);
rectangle(0,0,xmax,ymax);
//************************
//** For Wave making**//
      for(x=0;x<xmax;++x)
     {
     delay(5);
     angle=((double)x/xmax)*hz*2*22/7;
     sinA=sin(angle);
     y=240-vm*40*sinA;
     putpixel(x,y,12);
    moveto(530,5);
    settextstyle(2,0,4);
    setcolor(12);
    outtext("RED    = sin0ø");
     }
// wave 2=============================
      for(x=0;x<xmax;++x)
     {
     delay(5);
     angle=((double)x/xmax)*hz*2*22/7;
     sinA=sin(angle+120);
     y=240-vm*40*sinA;
     putpixel(x,y,14);
    moveto(530,25);
    settextstyle(2,0,4);
    setcolor(14);
    outtext("YELLOW = sin120ø");
     }
// wave 3 ================================

      for(x=0;x<xmax;++x)
     {
     delay(5);
     angle=((double)x/xmax)*hz*2*22/7;
     sinA=sin(angle+240);
     y=240-vm*40*sinA;
     putpixel(x,y,9);
    moveto(530,45);
    settextstyle(2,0,4);
    setcolor(9);
    outtext("BLUE   = sin240ø");
     }
     getch();
     closegraph();
     }

DESCRIPTION:

Oscilloscope 

Uses 5 header file in this program

 

#include<graphics.h> use because this program write in graphics mode.

#include<conio.h> use for compiler terbo c.

#include <dos.h> use for delay() function.

This part uses for initialize graphic mode 

 
int gd=DETECT,gm;
initgraph(&gd,&gm,"C:\\tc\\bgi");

……………………………………………………………….

Variables Declaration:

       int driver, mode;
      int x,y,hz,vm;
      int mx,my,xmax, ymax;
      double sinA, angle;

……………………………………………………………….

Consol drawing: 

    setcolor(3);
   xmax = getmaxx();
   ymax = getmaxy();

for(mx=0;mx<=640;mx=mx+40)
   line(mx,0, mx, ymax);

for(my=0;my<=479;my=my+40)
   line(0,my, xmax, my);

setcolor(15);
   line(xmax/2,0, xmax/2, ymax);
   line(0,ymax/2, xmax, ymax/2);
setcolor(12);
rectangle(0,0,xmax,ymax);

……………………………………………………………….

User Data Input:

 setfillstyle(1,0);
bar(1,1,79,39);
      printf("Hz(max-5Hz) =  ");
      scanf("%d",&hz);
      printf("Volt(max-6) =  ");
      scanf("%d",&vm);

……………………………………………………………….

Programmer information, in graphics text

 

……………………………………………………………….

  setfillstyle(1,0);
    bar(201,441,439,479);
    moveto(218,449);
    setcolor(15);
    settextstyle(2,0,6);
    outtext("SHEIKH.CSE-00315306015");

Wave shape making:

 for(x=0;x<xmax;++x)
     {
     delay(5);
     angle=((double)x/xmax)*hz*2*22/7;
     sinA=sin(angle);
     y=240-vm*40*sinA;
     putpixel(x,y,12);
    moveto(530,5);
    settextstyle(2,0,4);
    setcolor(12);
    outtext("RED    = sin0ø");

……………………………………………………………….

Display latch instill user pressing any key

And than close Graph

Getch();

Closegraph();

THANK YOU