-
Notifications
You must be signed in to change notification settings - Fork 0
/
TRANS2D.CPP
186 lines (186 loc) · 5.76 KB
/
TRANS2D.CPP
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
#include<dos.h>
#include<math.h>
#include<conio.h>
#include<iostream.h>
#include<graphics.h>
void main()
{
int xmax,ymax,gd=0,gm,tx,ty,k;
initgraph(&gd,&gm,"c:\\tc\\bgi");
xmax=getmaxx();
ymax=getmaxy();
line(xmax/2,0,xmax/2,ymax);
line(0,ymax/2,xmax,ymax/2);
int a[10][10],b[10][10],c[10][10],d[10][10],temp[10][10],i,j,n;
cout<<"Enter no of vertices:-";
cin>>n;
for(i=0;i<n;i++)
{
cout<<"\nEnter co-ordi of "<<i+1<<"point:";
for(j=0;j<3;j++)
{
cin>>a[i][j];
}
}
setcolor(46);
int ch1,ch2,y=1,sx,sy;
int m=0,q=0,o=0;
while(y==1)
{
for(i=0;i<n-1;i++)
{
line(xmax/2+a[i][0],ymax/2-a[i][1],xmax/2+a[i+1][0],ymax/2-a[i+1][1]);
}
line(xmax/2+a[i][0],ymax/2-a[i][1],xmax/2+a[0][0],ymax/2-a[0][1]);
setcolor(15);
cout<<"\n1.translation \n2.Rotation abt origin\n3.Rotation abt point\n4.Reflection\n5.Scaling";
cout<<"\nEnter ur choice:-";
cin>>ch1;
switch(ch1)
{
case 1:
b[0][0]=1;b[0][1]=0;b[0][2]=0;
b[1][0]=0;b[1][1]=1;b[1][2]=0;
cout<<"\nEnter tx and ty:-";
cin>>tx>>ty;
b[2][0]=tx;b[2][1]=ty;b[2][2]=1;
break;
case 2:
cout<<"\n1.90 \t2.180\t3.270\t4.360";
cout<<"\nEnter ur choice:-";
cin>>ch2;
switch(ch2)
{
case 1:
b[0][0]=0;b[0][1]=1;b[0][2]=0;
b[1][0]=-1;b[1][1]=0;b[1][2]=0;
b[2][0]=0;b[2][1]=0;b[2][2]=1;
break;
case 2:
b[0][0]=-1;b[0][1]=0;b[0][2]=0;
b[1][0]=0;b[1][1]=-1;b[1][2]=0;
b[2][0]=0;b[2][1]=0;b[2][2]=1;
break;
case 3:
b[0][0]=0;b[0][1]=-1;b[0][2]=0;
b[1][0]=1;b[1][1]=0;b[1][2]=0;
b[2][0]=0;b[2][1]=0;b[2][2]=1;
break;
case 4:
b[0][0]=1;b[0][1]=0;b[0][2]=0;
b[1][0]=0;b[1][1]=1;b[1][2]=0;
b[2][0]=0;b[2][1]=0;b[2][2]=1;
break;
} //end rot switch
break;
case 3:
cout<<"\nEnter the co-ords of the fixed point : ";
cin>>tx>>ty;
temp[0][0]=1;temp[0][1]=0;temp[0][2]=0;
temp[1][0]=0;temp[1][1]=1;temp[1][2]=0;
temp[2][0]=-tx;temp[2][1]=-ty;temp[2][2]=1;
cout<<"\n1.90 \t2.180\t3.270\t4.360";
cout<<"\nEnter ur choice:-";
cin>>ch2;
switch(ch2)
{
case 1:
b[0][0]=0;b[0][1]=1;b[0][2]=0;
b[1][0]=-1;b[1][1]=0;b[1][2]=0;
b[2][0]=0;b[2][1]=0;b[2][2]=1;
break;
case 2:
b[0][0]=-1;b[0][1]=0;b[0][2]=0;
b[1][0]=0;b[1][1]=-1;b[1][2]=0;
b[2][0]=0;b[2][1]=0;b[2][2]=1;
break;
case 3:
b[0][0]=0;b[0][1]=-1;b[0][2]=0;
b[1][0]=1;b[1][1]=0;b[1][2]=0;
b[2][0]=0;b[2][1]=0;b[2][2]=1;
break;
case 4:
b[0][0]=1;b[0][1]=0;b[0][2]=0;
b[1][0]=0;b[1][1]=1;b[1][2]=0;
b[2][0]=0;b[2][1]=0;b[2][2]=1;
break;
}
for(m = 0;m<3;m++)
for(q = 0;q<3;q++)
for(o = 0;o<3;o++)
d[m][q] = d[m][q] + (temp[m][o]*b[o][q]);
temp[2][0]=-tx;temp[2][1]=-ty;
for(m = 0;m<3;m++)
for(q = 0;q<3;q++)
b[m][q] = 0;
for(m = 0;m<3;m++)
for(q = 0;q<3;n++)
for(o = 0;o<3;o++)
b[m][q] = b[m][q] + (d[m][o]*temp[o][q]);
break;
case 4:
cout<<"\n1.Ref thru x axis \n2.Ref thru y axis\n3.Ref thru x=y axis\n4.Ref thru x=-y axis";
cout<<"\nEnter ur choice:-";
cin>>ch2;
switch(ch2)
{
case 1:
b[0][0]=1;b[0][1]=0;b[0][2]=0;
b[1][0]=0;b[1][1]=-1;b[1][2]=0;
b[2][0]=0;b[2][1]=0;b[2][2]=1;
break;
case 2:
b[0][0]=-1;b[0][1]=0;b[0][2]=0;
b[1][0]=0;b[1][1]=1;b[1][2]=0;
b[2][0]=0;b[2][1]=0;b[2][2]=1;
break;
case 3:
b[0][0]=0;b[0][1]=1;b[0][2]=0;
b[1][0]=1;b[1][1]=0;b[1][2]=0;
b[2][0]=0;b[2][1]=0;b[2][2]=1;
break;
case 4:
b[0][0]=0;b[0][1]=-1;b[0][2]=0;
b[1][0]=-1;b[1][1]=0;b[1][2]=0;
b[2][0]=0;b[2][1]=0;b[2][2]=1;
break;
} //end ref switch
break;
case 5:
cout<<"\nEnter scaling factors sx and sy:-";
cin>>sx>>sy;
b[0][0]=sx;b[0][1]=0;b[0][2]=0;
b[1][0]=0;b[1][1]=sy;b[1][2]=0;
b[2][0]=0;b[2][1]=0;b[2][2]=1;
break;
default:
cout<<"\nEnter correct choice:-";
continue;
}//end switch
for(i=0;i<n;i++)
{
for(j=0;j<3;j++)
{
c[i][j]=0;
for(k=0;k<3;k++)
{
c[i][j]=c[i][j]+a[i][k]*b[k][j];
}
}
}
setcolor(4);
for(i=0;i<n-1;i++)
{
line(xmax/2+c[i][0],ymax/2-c[i][1],xmax/2+c[i+1][0],ymax/2-c[i+1][1]);
}
line(xmax/2+c[i][0],ymax/2-c[i][1],xmax/2+c[0][0],ymax/2-c[0][1]);
cout<< "do u want to continue(1=yes/0=no):-";
cin>>y;
cleardevice();
clrscr();
setcolor(15);
line(xmax/2,0,xmax/2,ymax);
line(0,ymax/2,xmax,ymax/2);
}//end while
getch();
}