Sunday, November 25, 2012

3 DIMENSIONAL SCALING


3 DIMENSIONAL SCALING

#include<stdio.h>
#include<conio.h>
#include<graphics.h>
#include<math.h>
float px[10],py[10],tx[10],ty[10],tx2[10],ty2[10],px2[10],py2[10];
void disp1();
void disp2();
void scaling();
float depth,vertices;
void main()
{
            int gd=DETECT,gm,i;
            initgraph(&gd,&gm,"");
            if(graphresult()!=grOk)
            {
                         printf("Graphics error");
                        getch();
                        return;
            }
            printf("Enter number of vertices : ");
            scanf("%f",&vertices);
            printf("Enter the depth value : ");
            scanf("%f",&depth);
            printf("Enter the x and y coordinates : ");
            for(i=0;i<vertices;i++)
            {
                        scanf("%f%f",&px[i],&py[i]);
                        px2[i]=px[i]+depth;
                        py2[i]=py[i]+depth;
            }
            disp1();
            scaling();
            disp2();
            getch();
            return;
}
void disp1()
{
            int i;
            for(i=0;i<vertices-1;i++)
            {
                        line(px[i],py[i],px[i+1],py[i+1]);
                        line(px2[i],py2[i],px2[i+1],py2[i+1]);
            }
            line(px[vertices-1],py[vertices-1],px[0],py[0]);
            line(px2[vertices-1],py2[vertices-1],px2[0],py2[0]);
            for(i=0;i<vertices;i++)
            line(px[i],py[i],px2[i],py2[i]);
}
void disp2()
{
            int i;
            for(i=0;i<vertices-1;i++)
            {
                        line(tx[i],ty[i],tx[i+1],ty[i+1]);
                        line(tx2[i],ty2[i],tx2[i+1],ty2[i+1]);
            }
            line(tx[vertices-1],ty[vertices-1],tx[0],ty[0]);
            line(tx2[vertices-1],ty2[vertices-1],tx2[0],ty2[0]);
            for(i=0;i<vertices;i++)
                         line(tx[i],ty[i],tx2[i],ty2[i]);
            return;
}
void scaling()
{
            float sx,sy,sz,i,dep;
            printf("Enter the scale factors(3 values): ");
            scanf("%f%f%f",&sx,&sy,&sz);
            for(i=0;i<vertices;i++)
            {
                        tx[i]=px[i]*sx;
                         ty[i]=py[i]*sy;
                         dep=depth*sz;
                        tx2[i]=tx[i]+dep;
                        ty2[i]=ty[i]+dep;
            }
}

















                                    3-DIMENSIONAL SCALING


OUTPUT:


Enter the number of vertices: 3
Enter the depth value : 15
Enter the x and y coordinates : 100
50
50
50
50
100
Enter the scale factors ( 3 values ) : 2
2
2



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