第二次作业

  1 #include <iostream>
  2 #include <stdlib.h>
  3 #include <string.h> 
  4 #include <Eigen/Dense>
  5 #include <math.h>
  6 using namespace std;
  7 using namespace Eigen;
  8 using Eigen::MatrixXd;
  9 float pi=3.141592;
 10 RowVector2f move(char str[])
 11 {
 12     RowVector2f R;
 13     R(0)=0;
 14     R(1)=0;
 15     char a[60],b[60];
 16     int i,j,k;
 17     j=0,k=0;
 18     for(i=1;str[i]!=',';i++)
 19     {
 20         R(0)=10*R(0)+str[i]-'0';
 21         j++;
 22     }
 23     i++;
 24     for(i;str[i]!=')';i++)
 25     {
 26         R(1)=10*R(1)+str[i]-'0';
 27         k++;
 28     }
 29     return R;
 30 }
 31 int main()
 32 {
 33     int n;
 34     char name[60];
 35     double ang,deg;
 36     char T1[60];
 37     char T2[60];
 38     char T3[60];
 39     char T4[60];
 40     char T5[60];
 41     RowVector2f R1;
 42     RowVector2f R2;
 43     RowVector2f R3;
 44     RowVector2f R4;
 45     Matrix2f Rot;
 46     int C=1;
 47     while(C!=0)
 48 {
 49     cout<<"Please input name of graph：";
 50     cin>>name;
 51     cout<<"Please input number of points：";
 52     cin>>n;
 53     cout<<"Please input the endpoint：";
 54     if(n==1)
 55     {
 56         cin>>T1;
 57         R1=move(T1);
 58     }
 59     else if(n==2)
 60     {
 61         cin>>T1;
 62         cin>>T2;
 63         R1=move(T1);
 64         R2=move(T2);
 65     }
 66     else if(n==3)
 67     {
 68         cin>>T1;
 69         cin>>T2;
 70         cin>>T3;
 71         R1=move(T1);
 72         R2=move(T2);
 73         R3=move(T3);
 74     }
 75     else 
 76     {
 77         cout<<"!Input Error！";
 78     }
 79         cout<<"Please input a command：";
 80         cin>>T4;
 81         if( strcmp(T4,"Rotate")==0)
 82     {
 83         cout<<"Please input angle:";
 84         cin>>ang;
 85         deg=ang/180*pi;
 86         Rot(0,0)=cos(deg);
 87         Rot(0,1)=sin(deg);
 88         Rot(1,0)=-sin(deg);
 89         Rot(1,1)=cos(deg);
 90         if(n==1)
 91         {
 92             R1=R1*Rot;
 93             cout<<"（"<<R1<<"）"<<endl;
 94         }
 95         if(n==2)
 96         {
 97             R1=R1*Rot;
 98             R2=R2*Rot;
 99             cout<<"（"<<R1<<"）（"<<R2<<"）"<<endl;
100         }
101         if(n==3)
102         {
103             R1=R1*Rot;
104             R2=R2*Rot;
105             R3=R3*Rot;
106             cout<<"（"<<R1<<"）（"<<R2<<"）（"<<R3<<"）"<<endl;
107         }    
108     } 
109     if( strcmp(T4,"Move")==0)
110     {
111         cout<<"Please input the coordinate：";
112         cin>>T5;
113         R4=move(T5);
114         if(n==1)
115         {
116             R1=R1+R4;
117             cout<<"（"<<R1<<"）"<<endl;
118         }
119         if(n==2)
120         {
121             R1=R1+R4;
122             R2=R2+R4;
123             cout<<"（"<<R1<<"）（"<<R2<<"）"<<endl;
124         }
125         if(n==3)
126         {
127             R1=R1+R4;
128             R2=R2+R4;
129             R3=R3+R4;
130             cout<<"（"<<R1<<"）（"<<R2<<"）（"<<R3<<"）"<<endl;
131         }
132     }
133 }
134     
135     return 0;
136 }