Printing hello world using C programing

2D transformation for reflection in C program (Computer Graphics).

Program: #include<stdio.h> #include<conio.h> #include<graphics.h> #include<stdlib.h> void refx(int x1,int x2,int x3,int y1,int y2,int y3){ line(320,0,320,430); line(0,240,640,240); x1=(320-x1)+320; x2=(320-x2)+320; x3=(320-x3)+320; line(x1,y1,x2,y2); line(x2,y2,x3,y3); line(x3,y3,x1,y1); } void refy(int x1,int x2,int x3,int y1,int y2,int y3){ line(320,0,320,430); line(0,240,640,240); y1=(240-y1)+240; y2=(240-y2)+240; y3=(240-y3)+240; line(x1,y1,x2,y2); line(x2,y2,x3,y3); line(x3,y3,x1,y1); } void main() { int gd=DETECT,gm; int x1,y1,x2,y2,x3,y3; clrscr(); initgraph(&gd,&gm,"c://turboc3//bgi"); line(320,0,320,430); line(0,240,640,240); x1=150;y1=100; x2=220;y2=220; x3=220;y3=110; line(x1,y1,x2,y2); line(x2,y2,x3,y3); line(x3,y3,x1,y1); getch(); refx(x1,x2,x3,y1,y2,y3); getch(); refy(x1,x2,x3,y1,y2,y3); getch(); closegraph(); }

2D transformation for Rotation in C programming (Computer Graphics).

Program: #include <math.h> #include<stdio.h> #include <conio.h> #include <graphics.h> void main() { int gd=DETECT,gm,x1,x2,y1,y2,x4,y4; float angle=0.0,ang; initgraph(&gd,&gm,"C:\\turboc3\\BGI"); printf("Enter Co-ordinates:"); scanf("%d%d%d%d",&x1,&y1,&x2,&y2); line(x1,y1,x2,y2); printf("Enter the angle:"); scanf("%f",&ang); angle=(ang*3.14)/180; x4=x2-(((x2-x1)*cos(angle))-((y2-y1)*sin(angle))); y4=y2-(((x2-x1)*sin(angle))+((y2-y1)*cos(angle))); line(x2,y2,x4,y4); getch(); closegraph(); }

2D transforamation for shear in x axis in C programming (Computer Graphics).

Program: #include<stdio.h> #include<conio.h> #include<graphics.h> void main() { int a=DETECT,b; int x1=90,y1=90,x2=200,y2=200,tx=200; initgraph(&a,&b,"c://turboc3//bgi"); line(x1,y1,x2,y1); line(x1,y1,x1,y2); line(x2,y1,x2,y2); line(x1,y2,x2,y2); getch(); clearviewport(); line(x1+tx,y1,x2+tx,y1); //top line(x1+tx,y1,x1,y2); //left line(x2+tx,y1,x2,y2); line(x1,y2,x2,y2); getch(); }

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