137 lines
4.0 KiB
C++
137 lines
4.0 KiB
C++
|
#include<iostream>
|
||
|
|
#include<graphics.h>
|
||
|
|
#include<cmath>
|
||
|
|
using namespace std;
|
||
|
|
|
||
|
|
int main()
|
||
|
|
{
|
||
|
|
int gd = DETECT,gm;
|
||
|
|
initgraph(&gd, &gm, NULL);
|
||
|
|
float x1,y1,x2,y2,x3,y3;
|
||
|
|
float a[3][3];
|
||
|
|
cout<<"Enter x and y coordinates of 1st point: ";
|
||
|
|
cin>>x1>>y1;
|
||
|
|
cout<<"Enter x and y coordinates of 2nd point: ";
|
||
|
|
cin>>x2>>y2;
|
||
|
|
float angle1 = 60*(3.14/180);
|
||
|
|
x3 = x1 + (x2-x1)*cos(angle1) + (y2-y1)*sin(angle1);
|
||
|
|
y3 = y1 - (x2-x1)*sin(angle1) + (y2-y1)*cos(angle1);
|
||
|
|
a[2][0] = a[2][1] = a[2][2] = 1;
|
||
|
|
a[0][0] = x1;
|
||
|
|
a[0][1] = x2;
|
||
|
|
a[0][2] = x3;
|
||
|
|
a[1][0] = y1;
|
||
|
|
a[1][1] = y2;
|
||
|
|
a[1][2] = y3;
|
||
|
|
line(a[0][0],a[1][0],a[0][1],a[1][1]);
|
||
|
|
line(a[0][1],a[1][1],a[0][2],a[1][2]);
|
||
|
|
line(a[0][2],a[1][2],a[0][0],a[1][0]);
|
||
|
|
delay(10000);
|
||
|
|
int choice;
|
||
|
|
bool flag = true;
|
||
|
|
while(flag)
|
||
|
|
{
|
||
|
|
cout<<"\n****YOUR CHOICES ARE****\n";
|
||
|
|
cout<<"\n1. Translation \n2. Scaling \n3. Rotation \n4. Exit";
|
||
|
|
cout<<"\nEnter choice: ";
|
||
|
|
cin>>choice;
|
||
|
|
switch(choice)
|
||
|
|
{
|
||
|
|
case 1:
|
||
|
|
{
|
||
|
|
float b[3][3],c[3][3],tx,ty;
|
||
|
|
b[0][0] = b[1][1] = b[2][2] = 1;
|
||
|
|
b[0][1] = b[1][0] = b[2][0] = b[2][1] = 0;
|
||
|
|
cout<<"\nEnter values of tx and ty: ";
|
||
|
|
cin>>tx>>ty;
|
||
|
|
b[0][2] = tx;
|
||
|
|
b[1][2] = ty;
|
||
|
|
for(int i = 0; i<3; i++)
|
||
|
|
{
|
||
|
|
for(int j = 0; j<3; j++)
|
||
|
|
{
|
||
|
|
c[i][j] = 0;
|
||
|
|
for(int k = 0; k<3; k++)
|
||
|
|
{
|
||
|
|
c[i][j] += b[i][k]*a[k][j];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
setcolor(BROWN);
|
||
|
|
line(c[0][0],c[1][0],c[0][1],c[1][1]);
|
||
|
|
line(c[0][1],c[1][1],c[0][2],c[1][2]);
|
||
|
|
line(c[0][2],c[1][2],c[0][0],c[1][0]);
|
||
|
|
delay(10000);
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
|
||
|
|
case 2:
|
||
|
|
{
|
||
|
|
float b[3][3],c[3][3],sx,sy;
|
||
|
|
cout<<"\nEnter values of sx and sy: ";
|
||
|
|
cin>>sx>>sy;
|
||
|
|
b[2][2] = 1;
|
||
|
|
b[0][1] = b[0][2] = b[1][0] = b[1][2] = b[2][0] = b[2][1] = 0;
|
||
|
|
b[0][0] = sx;
|
||
|
|
b[1][1] = sy;
|
||
|
|
for(int i = 0; i<3; i++)
|
||
|
|
{
|
||
|
|
for(int j = 0; j<3; j++)
|
||
|
|
{
|
||
|
|
c[i][j] = 0;
|
||
|
|
for(int k = 0; k<3; k++)
|
||
|
|
{
|
||
|
|
c[i][j] += b[i][k]*a[k][j];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
setcolor(BLUE);
|
||
|
|
line(c[0][0],c[1][0],c[0][1],c[1][1]);
|
||
|
|
line(c[0][1],c[1][1],c[0][2],c[1][2]);
|
||
|
|
line(c[0][2],c[1][2],c[0][0],c[1][0]);
|
||
|
|
delay(10000);
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
|
||
|
|
case 3:
|
||
|
|
{
|
||
|
|
float b[3][3],c[3][3],angle,z;
|
||
|
|
cout<<"\nEnter angle(in degrees): ";
|
||
|
|
cin>>angle;
|
||
|
|
z = angle*(3.14/180);
|
||
|
|
b[0][0] = b[1][1] = cos(z);
|
||
|
|
b[0][1] = sin(z);
|
||
|
|
b[1][0] = (-sin(z));
|
||
|
|
b[2][2] = 1;
|
||
|
|
b[0][2] = b[1][2] = b[2][0] = b[2][1] = 0;
|
||
|
|
for(int i = 0; i<3; i++)
|
||
|
|
{
|
||
|
|
for(int j = 0; j<3; j++)
|
||
|
|
{
|
||
|
|
c[i][j] = 0;
|
||
|
|
for(int k = 0; k<3; k++)
|
||
|
|
{
|
||
|
|
c[i][j] += b[i][k]*a[k][j];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
setcolor(RED);
|
||
|
|
line(c[0][0],c[1][0],c[0][1],c[1][1]);
|
||
|
|
line(c[0][1],c[1][1],c[0][2],c[1][2]);
|
||
|
|
line(c[0][2],c[1][2],c[0][0],c[1][0]);
|
||
|
|
delay(10000);
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
|
||
|
|
case 4:
|
||
|
|
flag = false;
|
||
|
|
break;
|
||
|
|
|
||
|
|
default:
|
||
|
|
cout<<"\nINVALID CHOICE!!!\n";
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return 0;
|
||
|
|
}
|