Write a C Program to implement 3-D rotation in Graphics

By | 02.12.2016

Implement 3-D rotation in Graphics


Write a C Program to implement 3-D rotation in Graphics. C Program to implement 3-D rotation with respect to x-axis, y-axis and z-axis (wire frame model of a cube). Use appropriate data structures to manipulate the wire frame model.


Below is the source code for C Program to implement 3-D rotation in Graphics which is successfully compiled and run on Windows System to produce desired output as shown below :


SOURCE CODE : :


/*  C Program to implement 3-D rotation in Graphics  */

#include <stdio.h>
#include <graphics.h>
#include <math.h>
#include <stdlib.h>
#include <dos.h>
#include <conio.h>
 
#define ORG -50
 
double face1[5][2] = {
                            { 250, 125 },
                            { 350, 125 },
                            { 350, 225 },
                            { 250, 225 },
                            { 250, 125 }
                           };
 
double face2[5][2] = {
                            { 250+ORG, 125-ORG },
                            { 350+ORG, 125-ORG },
                            { 350+ORG, 225-ORG },
                            { 250+ORG, 225-ORG },
                            { 250+ORG, 125-ORG }
                           };
 
double angle = 5.0 * M_PI / 180;
double midx1, midy1, midx2, midy2;
 
void rotate (void)
{
    int i;
    for (i=0; i<5; i++)
    {
        double xnew, ynew;
 
        xnew = midx1 + (face1[i][0] - midx1) * cos (angle) -
               (face1[i][1] - midy1) * sin (angle);
        ynew = midy1 + (face1[i][0] - midx1) * sin (angle) +
                (face1[i][1] - midy1) * cos (angle);
 
        face1[i][0] = xnew;
        face1[i][1] = ynew;
 
        xnew = midx2 + (face2[i][0] - midx2) * cos (angle) -
                (face2[i][1] - midy2) * sin (angle);
        ynew = midy2 + (face2[i][0] - midx2) * sin (angle) +
                (face2[i][1] - midy2) * cos (angle);
 
        face2[i][0] = xnew;
        face2[i][1] = ynew;
    }
 
    cleardevice();
 
    for (i=0; i<4; i++)
    {
        setcolor(7);
        line (face1[i][0], face1[i][1], face1[i+1][0], face1[i+1][1]);
        setcolor(8);
        line (face2[i][0], face2[i][1], face2[i+1][0], face2[i+1][1]);
        setcolor(9);
        line (face1[i][0], face1[i][1], face2[i][0], face2[i][1]);
    }
 
    delay (125);
}
 
void main()
{
    int gd = DETECT, gm;
 
    midx1 = (face1[0][0] + face1[1][0]) / 2.0;
    midy1 = (face1[1][1] + face1[2][1]) / 2.0;
    midx2 = (face2[0][0] + face2[1][0]) / 2.0;
    midy2 = (face2[1][1] + face2[2][1]) / 2.0;
 
    initgraph (&gd, &gm, "..\\bgi");
 
    while (!kbhit())
        rotate();
 
    closegraph();
}

Above is the source code for C Program to implement 3-D rotation in Graphics which is successfully compiled and run on Windows System.The Output of the program is shown above .

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About Tunde A

My name is Tunde Ajetomobi, a Tech Enthusiast and Growth Hacker. I enjoy creating helpful content that solves problem across different topics. Codezclub is my way of helping young aspiring programmers and students to hone their skills and find solutions on fundamental programming languages.

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