3 D Transformation c Program Code with output Computer Graphics lab

3 D Transformation c Program Code with output Computer Graphics lab

Coding :

 

//3d transformation 2910007 sasi

#include<stdio.h>

#include<conio.h>

#include<graphics.h>

#include<math.h>

void trans();

//void axis();

void scale();

void rotate();

int maxx,maxy,midx,midy;

/*void axis()

{

//          getch();

  //        cleardevice();

            line(midx,0,midx,maxy);

            line(0,midy,maxx,midy);

}*/

void main()

{

            int ch;

            int gd=DETECT,gm;

            detectgraph(&gd,&gm);

            initgraph(&gd,&gm,"e:\\tc\\bgi");

            printf("\n 1.Translation \n2.Scaling\n 3.Rotation \n 4.exit");

            printf("enter your choice");

            scanf("%d",&ch);

            do

            {

                        switch(ch)

                        {

                                    case 1 :             trans();

                                                            getch();

                                                      //    closegraph();

                                                            break;

 

                                    case 2 :             scale();

                                                            getch();

                                                      //    closegraph();

                                                            break;

 

                                    case 3 :             rotate();

                                                            getch();

                                                    //      closegraph();

                                                            break;

 

                                    case 4 :        break;

                        }

                        printf("enter your choice");

                        scanf("%d",&ch);

            } while(ch<4);

}

void trans()

{

            int x,y,z,o,x1,x2,y1,y2;

            maxx=getmaxx();

            maxy=getmaxy();

            midx=maxx/2;

            midy=maxy/2;

            //axis();

            bar3d(midx+50,midy-100,midx+60,midy-90,10,1);

            printf("Enter translation factor");

            scanf("%d%d",&x,&y);

            printf("After translation:");

            bar3d(midx+x+50,midy-(y+100),midx+x+60,midy-(y+90),10,1);

}

void scale()

{

            int x,y,z,o,x1,x2,y1,y2;

            maxx=getmaxx();

            maxy=getmaxy();

            midx=maxx/2;

            midy=maxy/2;

            //axis();

            bar3d(midx+50,midy-100,midx+60,midy-90,5,1);

            printf("before translation\n");

            printf("Enter scaling factors\n");

            scanf("%d %d %d", &x,&y,&z);

            printf("After scaling\n");

            bar3d(midx+(x*50),midy-(y*100),midx+(x*60),midy-(y*90),5*z,1);

}

void rotate()

{

            int x,y,z,o,x1,x2,y1,y2;

            maxx=getmaxx();

            maxy=getmaxy();

            midx=maxx/2;

            midy=maxy/2;

            //axis();

            bar3d(midx+50,midy-100,midx+60,midy-90,5,1);

            printf("Enter rotating angle");

            scanf("%d",&o);

            x1=50*cos(o*3.14/180)-100*sin(o*3.14/180);

            y1=50*sin(o*3.14/180)+100*cos(o*3.14/180);

            x2=60*cos(o*3.14/180)-90*sin(o*3.14/180);

            y2=60*sin(o*3.14/180)+90*cos(o*3.14/180);

   //       axis();

    //      printf("After rotation about z axis");

    //      bar3d(midx+x1,midy-y1,midx+x2,midy-y2,5,1);

            //axis();

            printf("After rotation  about x axis");

            bar3d(midx+50,midy-x1,midx+60,midy-x2,5,1);

            //axis();

            printf("After rotation about yaxis");

            bar3d(midx+x1,midy-100,midx+x2,midy-90,5,1);

}

output   : 

Translation:

Scaling :

Rotation  :

--

Don't ever give up.

Even when it seems impossible,

Something will always

pull you through.

The hardest times get even

worse when you lose hope.

As long as you believe you can do it, You can.

But When you give up,

You lose !

I DONT GIVE UP.....!!!

with regards

prem sasi kumar arivukalanjiam