Write a program to scale a figure given by user. Options for the users are circle, triangle or rectangle.
#include<stdio.h>
#include<conio.h>
#include<graphics.h>
void Triangle(int, int, int, int, int, int);
//int midx=319, midy=239;
void main()
{
int gdriver=DETECT, gmode, c,r,x1,y1,x2,y2,x3,y3;
float S,Sx,Sy;
initgraph(&gdriver,&gmode,"c:\\tc\\bgi");
clrscr();
cleardevice();
printf("1.Circle \n2.Triangle \n3.Rectangle \n\n");
printf("Enter the choice : ");
scanf("%d",&c);
clrscr();
cleardevice();
switch(c)
{
case 1:
printf("Enter the value of center (x1,y1) : ");
scanf("%d %d",&x1,&y1);
printf("Enter the Radius of the circle r : ");
scanf("%d",&r);
printf("Enter the scaling Factor S : ");
scanf("%f",&S);
circle(x1,y1,r);
// line(0,midy,2*midx,midy);
// line(midx,0,midx,2*midy);
getch(); setcolor(4);
circle(x1,y1,r*S);
break;
case 2:
printf("Enter the value of (x1,y1) : ");
scanf("%d %d",&x1,&y1);
printf("Enter the value of (x2,y2) : ");
scanf("%d %d",&x2,&y2);
printf("Enter the value of (x3,y3) : ");
scanf("%d %d",&x3,&y3);
printf("Enter the scaling Factor (Sx,Sy) : ");
scanf("%f %f",&Sx,&Sy);
// line(0,midy,2*midx,midy);
// line(midx,0,midx,2*midy);
Triangle(x1,y1,x2,y2,x3,y3);
getch(); setcolor(4);
Triangle(x1*Sx,y1*Sy,x2*Sx,y2*Sy,x3*Sx,y3*Sy);
break;
case 3:
printf("Enter the top-left point of the rectangle : ");
scanf("%d %d",&x1,&y1);
printf("\n\nEnter the bottom-right point of the rectangle : ");
scanf("%d %d",&x2,&y2);
printf("Enter the scaling Factor (Sx,Sy) : ");
scanf("%f %f",&Sx,&Sy);
// line(0,midy,2*midx,midy);
// line(midx,0,midx,2*midy);
rectangle(x1,y1,x2,y2);
getch(); setcolor(4);
rectangle(x1*Sx,y1*Sy,x2*Sx,y2*Sy);
break;
}
getch();
closegraph();
}
void Triangle(int x1, int y1, int x2, int y2, int x3, int y3)
{
line(x1,y1,x2,y2);
line(x2,y2,y3,y3);
line(x3,y3,x1,y1);
}
