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transformations for equilateral triangle added

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Tanmay 2023-12-13 12:20:19 +05:30
parent 10ac660676
commit 8e1ab16fea
1 changed files with 136 additions and 0 deletions
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Assignment B-4 (Transformations)(triangle).cpp Normal file
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#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;
}