SCALING PROGRAM IN C

Scaling program in c

//program for fixed point translation & fixed point scaling

#include<stdio.h>
#include<conio.h>
#include<graphics.h>
#include<dos.h>
#include<stdlib.h>

void main()
{
int gd=DETECT,gm,x,y,ch;
char p[10];
int i,t;
clrscr();
initgraph(&gd,&gm,"c:\tc\bgi");
setbkcolor(BLUE);
outtextxy(480,400,"x");
outtextxy(150,90,"y");
line(150,100,150,400);
line(150,400,470,400);
outtextxy(140,405,"0");
for(i=0,t=25;i<12;i++)
{
itoa(i+1,p,10);
outtextxy(150+t,410,p);
line(150+t,400,150+t,405);
itoa(i+1,p,10);
outtextxy(130,400-t,p);
line(150,400-t,145,400-t);
t+=25;
}
setcolor(5);
line(250,200,350,200);
line(250,200,300,300);
line(300,300,350,200);
x=(250+350+300)/3;
y=(200+200+300)/3;
putpixel(x,y,10);
printf("Enter your choice");
printf("npress 1: fixed point Traslation");
printf("npress 2: fixed point Scaling");
printf("nchoice=");
scanf("%d",&ch);
switch(ch)
{
case 1: setcolor(RED);
setlinestyle(2,0,2);
line(150,467,200,367);
line(100,367,150,467);
line(100,367,200,367);
getch();
setbkcolor(RED);
setcolor(YELLOW);
line(200,350,150-67,400);
line(200,350,200,450);
line(200,450,150-67,400);
setcolor(YELLOW);
getch();
setbkcolor(RED);
line(300-67,233,350,183);
line(350,183,350,283);
line(350,283,300-67,233);
break;

case 2: setcolor(RED);
setlinestyle(2,0,2);
line(150,467,200,367);
line(100,367,150,467);
line(100,367,200,367);
getch();
setcolor(YELLOW);
line(150,447,180,377);
line(180,377,120,377);
line(120,377,150,447);
setbkcolor(RED);
getch();
setcolor(YELLOW);
line(270,210,330,210);
line(270,210,300,280);
line(300,280,330,210);
getch();
break;
default : exit(0);
break;
}
getch();
}

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