2D Object Transformations

 

Group B  

Practical 4 a  

Problem Statement :  Write C++ program to draw 2-D object and perform following basic transformations a) Scaling b) Translation c) Rotation. Apply the concept of operator overloading.

Check Out Code Here 👇

	#include <graphics.h>
	#include <stdlib.h>
	#include<dos.h>
	#include <iostream.h>
	#include<conio.h>
	#include<math.h>
	class triangle
	{
	int x1,x2,x3,y1,y2,y3,nx1,nx2,nx3,ny1,ny2,ny3,c;
	public:
	void read();
	void draw();
	triangle operator+(triangle t);
	triangle operator*(triangle t);
	triangle operator/(triangle t);
	};
	void triangle::read()
	{
	cout<<"\t Program for basic transformations";
	cout<<"\n\t Enter the coordinates of triangle and press ENTER ";
	setcolor(11);
	cin>>x1>>y1>>x2>>y2>>x3>>y3;
	}
	void triangle::draw()
	{
	line(x1,y1,x2,y2);
	line(x2,y2,x3,y3);
	line(x3,y3,x1,y1);
	getch();
	}
	triangle triangle:: operator+(triangle t)
	{ int tx,ty;
	cout<<"\Enter translation factors(tx and ty) ";
	cin>>tx>>ty;
	t.x1=x1+tx;
	t.y1=y1+ty;
	t.x2=x2+tx;
	t.y2=y2+ty;
	t.x3=x3+tx;
	t.y3=y3+ty;
	return(t);
	}
	triangle triangle:: operator*(triangle t)
	{
	float sx,sy;
	cout<<"\n Enter the scalling factor(Sx and Sy) ";
	cin>>sx>>sy;
	t.x1=x1*sx;
	t.y1=y1*sy;
	t.x2=x2*sx;
	t.y2=y2*sy;
	t.x3=x3*sx;
	t.y3=y3*sy;
	return(t);
	}
	triangle triangle ::operator/(triangle t)
	{
	int r;
	float theta;
	cout<<"\n Enter the angle of rotation ";
	cin>>r;
	theta=3.14*r/180;
	t.x1=abs(x1*cos(theta)-y1*sin(theta));
	t.y1=abs(x1*sin(theta)+y1*cos(theta));
	t.x2=abs(x2*cos(theta)-y2*sin(theta));
	t.y2=abs(x2*sin(theta)+y2*cos(theta));
	t.x3=abs(x3*cos(theta)-y3*sin(theta));
	t.y3=abs(x3*sin(theta)+y3*cos(theta));
	return(t);
	}
	int main()
	{
	int gm,c;
	int gd=DETECT;
	initgraph(&gd,&gm,"c:\\turboc3\\bgi");
	triangle t1,T, S,R,t2;
	t1.read();
	t1.draw();
	cout<<"\n 1.Translation\n 2.Rotation\n 3.Scalling\n 4.exit";
	cout<<"\n Enter your choice: ";
	cin>>c;
	switch(c)
	{
	case 1:
	T=t1+t2;
	T.draw();
	break;
	case 2:
	R=t1/t1;
	R.draw();
	break;
	case 3:
	S=t1*t1;
	S.draw();
	break;
	}
	getch();
	closegraph();
	return 0;
	}

view raw 2d-object-transformations hosted with ❤ by GitHub

Output :

a) Scaling -

b) Translation -

c) Rotation -

Code can get updated so also come back later to see if there is any changes. Also if there is any problem with code you can comment below. If you like it, do share with your friends.😊