Program for 3-D Transformation. - Computer Graphics Source Code in C++

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Home » C++ Home » Computer Graphics Home » Program for 3-D Transformation.

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Title	Program for 3-D Transformation.
Description
Category	C++ » Computer Graphics
Hits	374443
Code	Select and Copy the Code
#include<iostream.h> #include<dos.h> #include<stdio.h> #include<math.h> #include<conio.h> #include<graphics.h> #include<process.h> int gd=DETECT,gm; double x1,x2,y1,y2; void show_message() { char mess[]={"-","=","["," ","3","D","-","T","r","a","n","s", "f","o","r","m","a","t","i","o","n"," ","]","=","-"}; int xx=28,xxx=52,i,j; _setcursortype(_NOCURSOR); for(i=0,j=24;i<15,j>=12;i++,j--) { gotoxy(xx,1); cout<<mess[i]; xx++; gotoxy(xxx,1); cout<<mess[j]; xxx--; delay(50); } _setcursortype(_NORMALCURSOR); } void draw_cube(double edge[20][3]) { initgraph(&gd,&gm,"..\bgi"); int i; clearviewport(); for(i=0;i<19;i++) { x1=edge[i][0]+edge[i][2](cos(2.3562)); y1=edge[i][1]-edge[i][2](sin(2.3562)); x2=edge[i+1][0]+edge[i+1][2](cos(2.3562)); y2=edge[i+1][1]-edge[i+1][2](sin(2.3562)); line(x1+320,240-y1,x2+320,240-y2); } line(320,240,320,25); line(320,240,550,240); line(320,240,150,410); getch(); closegraph(); } void scale(double edge[20][3]) { double a,b,c; int i; cout<<" " Enter The Scaling Factors ":="; cin>>a>>b>>c; initgraph(&gd,&gm,"..\bgi"); clearviewport(); for(i=0;i<20;i++) { edge[i][0]=edge[i][0]a; edge[i][1]=edge[i][1]b; edge[i][2]=edge[i][2]c; } draw_cube(edge); closegraph(); } void translate(double edge[20][3]) { int a,b,c; int i; cout<<" " Enter The Translation Factors ":="; cin>>a>>b>>c; initgraph(&gd,&gm,"..\bgi"); clearviewport(); for(i=0;i<20;i++) { edge[i][0]+=a; edge[i][0]+=b; edge[i][0]+=c; } draw_cube(edge); closegraph(); } void rotate(double edge[20][3]) { int ch; int i; double temp,theta,temp1; clrscr(); cout<<" -=[ Rotation About ]=-"; cout<<" 1:==>" X-Axis ""; cout<<" 2:==>" Y-Axis ""; cout<<" 3:==>" Z-Axis ""; cout<<" " Enter Your Choice ":="; cin>>ch; switch(ch) { case 1: cout<<" " Enter The Angle ":="; cin>>theta; theta=(theta3.14)/180; for(i=0;i<20;i++) { edge[i][0]=edge[i][0]; temp=edge[i][1]; temp1=edge[i][2]; edge[i][1]=tempcos(theta)-temp1sin(theta); edge[i][2]=tempsin(theta)+temp1cos(theta); } draw_cube(edge); break; case 2: cout<<" " Enter The Angle ":="; cin>>theta; theta=(theta3.14)/180; for(i=0;i<20;i++) { edge[i][1]=edge[i][1]; temp=edge[i][0]; temp1=edge[i][2]; edge[i][0]=tempcos(theta)+temp1sin(theta); edge[i][2]=-tempsin(theta)+temp1cos(theta); } draw_cube(edge); break; case 3: cout<<" " Enter The Angle ":="; cin>>theta; theta=(theta3.14)/180; for(i=0;i<20;i++) { edge[i][2]=edge[i][2]; temp=edge[i][0]; temp1=edge[i][1]; edge[i][0]=tempcos(theta)-temp1sin(theta); edge[i][1]=tempsin(theta)+temp1cos(theta); } draw_cube(edge); break; } } void reflect(double edge[20][3]) { int ch; int i; clrscr(); cout<<" -=[ Reflection About ]=-"; cout<<" 1:==>" X-Axis ""; cout<<" 2:==>" Y-Axis ""; cout<<" 3:==>" Z-Axis ""; cout<<" " Enter Your Choice ":="; cin>>ch; switch(ch) { case 1: for(i=0;i<20;i++) { edge[i][0]=edge[i][0]; edge[i][1]=-edge[i][1]; edge[i][2]=-edge[i][2]; } draw_cube(edge); break; case 2: for(i=0;i<20;i++) { edge[i][1]=edge[i][1]; edge[i][0]=-edge[i][0]; edge[i][2]=-edge[i][2]; } draw_cube(edge); break; case 3: for(i=0;i<20;i++) { edge[i][2]=edge[i][2]; edge[i][0]=-edge[i][0]; edge[i][1]=-edge[i][1]; } draw_cube(edge); break; } } void perspect(double edge[20][3]) { int ch; int i; double p,q,r; clrscr(); cout<<" -=[ Perspective Projection About ]=-"; cout<<" 1:==>" X-Axis ""; cout<<" 2:==>" Y-Axis ""; cout<<" 3:==>" Z-Axis ""; cout<<" " Enter Your Choice ":="; cin>>ch; switch(ch) { case 1: cout<<" " Enter P ":="; cin>>p; for(i=0;i<20;i++) { edge[i][0]=edge[i][0]/(pedge[i][0]+1); edge[i][1]=edge[i][1]/(pedge[i][0]+1); edge[i][2]=edge[i][2]/(pedge[i][0]+1); } draw_cube(edge); break; case 2: cout<<" " Enter Q ":="; cin>>q; for(i=0;i<20;i++) { edge[i][1]=edge[i][1]/(edge[i][1]q+1); edge[i][0]=edge[i][0]/(edge[i][1]q+1); edge[i][2]=edge[i][2]/(edge[i][1]q+1); } draw_cube(edge); break; case 3: cout<<" " Enter R ":="; cin>>r; for(i=0;i<20;i++) { edge[i][2]=edge[i][2]/(edge[i][2]r+1); edge[i][0]=edge[i][0]/(edge[i][2]r+1); edge[i][1]=edge[i][1]/(edge[i][2]r+1); } draw_cube(edge); break; } closegraph(); } void main() { int choice; double edge[20][3]= { 100,0,0, 100,100,0, 0,100,0, 0,100,100, 0,0,100, 0,0,0, 100,0,0, 100,0,100, 100,75,100, 75,100,100, 100,100,75, 100,100,0, 100,100,75, 100,75,100, 75,100,100, 0,100,100, 0,100,0, 0,0,0, 0,0,100, 100,0,100 }; while(1) { clrscr(); show_message(); cout<<" 1:==>" Draw Cube ""; cout<<" 2:==>" Scaling ""; cout<<" 3:==>" Rotation ""; cout<<" 4:==>" Reflection ""; cout<<" 5:==>" Translation ""; cout<<" 6:==>" Perspective Projection ""; cout<<" 7:==>" Exit ""; cout<<" " Enter Your Choice ":="; cin>>choice; switch(choice) { case 1: draw_cube(edge); break; case 2: scale(edge); break; case 3: rotate(edge); break; case 4: reflect(edge); break; case 5: translate(edge); break; case 6: perspect(edge); break; case 7: exit(0); default: cout<<" a" Press A Valid Key...!!! ""; getch(); break; } closegraph(); } }

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