I am writing a c++, I got every thing. But this program giving me error \"Initia

ID: 3782105 • Letter: I

Question

I am writing a c++, I got every thing. But this program giving me error "Initialzation of point is skipped by case lable". Can you help me to creat a menu.

Pease include sample output..

#include <iostream>
#include <cstdlib>
#include <iomanip>
#include <cmath>
# define M_PI 3.14159 //this # define the pie values
using namespace std;

//creating class for three desmial points
class TDpoint
{
public:

   //delacring the constructor funnctions
   double new_x, new_y, new_z, thata;
   TDpoint(double x, double y, double z);

   //delcaring the variables for the member functions for x,y and z
   double Input_x() const { return x; }
   double InPut_y() const { return y; }
   double Input_z() const { return z; }

   //delacring variabke for shifiting the point and rotating the value
   void shiftPoint(double delta_x, double delta_y, double delta_z);
   void rotate_x(double angle);
   void rotate_y(double angle);
   void rotate_z(double angle);
private:

//in private delcaring the value for x,y and z
double x, y, z;
};

TDpoint::TDpoint(double x, double y, double z)
{
   //setting the value for equal to other same value
   this->x = x;
   this->y = y;
   this->z = z;
}
void TDpoint::shiftPoint(double delta_x, double delta_y, double delta_z)
{
   x = x + delta_x;
   y = y + delta_y;
   z = z + delta_z;
}

//this functions will rotate for x
void TDpoint::rotate_x(double angle)
{
   //calculation
   thata = (angle*M_PI) / 180;
   new_x = x;
   new_y = y*cos(thata) - z*sin(thata);
   new_z = y*sin(thata) + z*cos(thata);

   //setting value for the x eqal to newer value
   x = new_x;
   y = new_y;
   z = new_z;
}
void menu()
{
   //displaying the menu to user
   cout << "Press 1 to enter the corrdinate." << endl;
   cout << "Press 2 to display the orginal corrdinate points." << endl;
   cout << "Press 3 to enter the degrees to roate the a-axis." << endl;
   cout << "Press 4 to display the after rotation corrdinate points." << endl;
   cout << "Press 3 to enter the new points." << endl;
   cout << "Press 4 to exit."<<endl;
}

//this functions will rotate for y
void TDpoint::rotate_y(double angle)
{
   //calculation
   thata = (angle*M_PI) / 180;
   new_x = x*cos(thata) + z*sin(thata);
   new_y = y;
   new_z = y*sin(thata) - z*cos(thata);

   //setting value for the x eqal to newer value
   x = new_x;
   y = new_y;
   z = new_z;
}

//this functions will rotate for z
void TDpoint::rotate_z(double angle)
{
   //calculation
   thata = (angle*M_PI) / 180;
   new_x = x*cos(thata) + z*sin(thata);
   new_y = y*cos(thata) - z*sin(thata);
   new_z = z;

   //setting value for the x eqal to newer value
   x = new_x;
   y = new_y;
   z = new_z;
}

int main()
{
   double x, y, z, degree, Shiftpoints;
   char choice, axis;
   bool again = false;

//program desprictions
cout << "This program will keep track of the postions of a point in three-dimensional space." << endl;

   while (!again)
   {
       menu();
       cout << "Choose an options from menu.";
       cin >> choice;
       switch (choice)
       {
       case 0:
       {
           //asking user to enter the three corrdinate points
           cout << "Please enter the three points." << endl;
           cout << "x = ";
           cin >> x;
           cout << "y = ";
           cin >> y;
           cout << "z=";
           cin >> z;
           TDpoint Points(x, y, z);
           break;

case 1:
cout << showpoint << fixed << setprecision(2);

           //displaying the three points
           cout << "Original corrdinate poitns are: " << endl;
           cout << "x =" << Points.Input_x() << endl;
           cout << "y= " << Points.InPut_y() << endl;
           cout << "z = " << Points.Input_z() << endl;
           break;

       case 2:
           //asking user how many degree they x-axis
           cout << "Please enter a number for x-axis: ";
           cin >> degree;
           Points.rotate_x(degree);
           cout << endl;

           break;
       case 3:
           //this will display the rotaions for a-axis
           cout << "After a " << degree << " degree rataion around the a-axis" << endl;
           cout << "New coordinate points are: ";
           cout << endl;

           cout << "x =" << Points.Input_x() << endl;
           cout << "y = " << Points.InPut_y() << endl;
           cout << "z = " << Points.Input_z() << endl;
           break;
       case 4:
           //need help with shift numbers
           //is that going to work on work
           cout << "Enter the point that you would like to shift." << endl;
           cout << "x = ";
           cin >> x;
           cout << "y = ";
           cin >> y;
           cout << "z = ";
           cin >> z;
           Points.shiftPoint(x, y, z);
           break;

       case 5:
           cout << "x =" << Points.Input_x() << endl;
           cout << "y= " << Points.InPut_y() << endl;
           cout << "z = " << Points.Input_z() << endl;
       default:
           break;
       }
       }
       system("pause");
       return 0;

}
}

Explanation / Answer

#include <iostream>
#include <cstdlib>
#include <iomanip>
#include <cmath>
#define M_PI 3.14159
using namespace std;
//creating class for three desmial points
class TDpoint
{
public:

//delacring the constructor funnctions
double new_x, new_y, new_z, thata;
TDpoint(double x, double y, double z);
//delcaring the variables for the member functions for x,y and z
double Input_x() const { return x; }
double InPut_y() const { return y; }
double Input_z() const { return z; }
//delacring variabke for shifiting the point and rotating the value
void shiftPoint(double delta_x, double delta_y, double delta_z);
void rotate_x(double angle);
void rotate_y(double angle);
void rotate_z(double angle);
private:
//in private delcaring the value for x,y and z
double x, y, z;
};
TDpoint::TDpoint(double x, double y, double z)
{
//setting the value for equal to other same value
this->x = x;
this->y = y;
this->z = z;
}
void TDpoint::shiftPoint(double delta_x, double delta_y, double delta_z)
{
x = x + delta_x;
y = y + delta_y;
z = z + delta_z;
}
//this functions will rotate for x
void TDpoint::rotate_x(double angle)
{
//calculation
thata = (angle*M_PI) / 180;
new_x = x;
new_y = y*cos(thata) - z*sin(thata);
new_z = y*sin(thata) + z*cos(thata);
//setting value for the x eqal to newer value
x = new_x;
y = new_y;
z = new_z;
}
void menu()
{
//displaying the menu to user
cout << "Press 1 to enter the corrdinate." << endl;
cout << "Press 2 to display the orginal corrdinate points." << endl;
cout << "Press 3 to enter the degrees to roate the a-axis." << endl;
cout << "Press 4 to display the after rotation corrdinate points." << endl;
cout << "Press 3 to enter the new points." << endl;
cout << "Press 4 to exit."<<endl;
}
//this functions will rotate for y
void TDpoint::rotate_y(double angle)
{
//calculation
thata = (angle*M_PI) / 180;
new_x = x*cos(thata) + z*sin(thata);
new_y = y;
new_z = y*sin(thata) - z*cos(thata);
//setting value for the x eqal to newer value
x = new_x;
y = new_y;
z = new_z;
}
//this functions will rotate for z
void TDpoint::rotate_z(double angle)
{
//calculation
thata = (angle*M_PI) / 180;
new_x = x*cos(thata) + z*sin(thata);
new_y = y*cos(thata) - z*sin(thata);
new_z = z;
//setting value for the x eqal to newer value
x = new_x;
y = new_y;
z = new_z;
}
int main()
{
double x, y, z, degree, Shiftpoints;
char axis;
int choice;
bool again = false;
TDpoint *ptr;

//program desprictions
cout << "This program will keep track of the postions of a point in three-dimensional space." << endl;
while (!again)
{
menu();
cout << "Choose an options from menu.";
cin >> choice;
switch (choice)
{
case 0:

{//asking user to enter the three corrdinate points
cout << "Please enter the three points." << endl;
cout << "x = ";
cin >> x;
cout << "y = ";
cin >> y;
cout << "z=";
cin >> z;
TDpoint Points(x,y,z);
ptr=&Points;

break;
}
case 1:
cout << showpoint << fixed << setprecision(2);
//displaying the three points
cout << "Original corrdinate poitns are: " << endl;
cout << "x =" << ptr->Input_x() << endl;
cout << "y= " << ptr->InPut_y() << endl;
cout << "z = " << ptr->Input_z() << endl;
break;
case 2:
//asking user how many degree they x-axis
cout << "Please enter a number for x-axis: ";
cin >> degree;
ptr->rotate_x(degree);
cout << endl;
break;
case 3:
//this will display the rotaions for a-axis
cout << "After a " << degree << " degree rataion around the a-axis" << endl;
cout << "New coordinate points are: ";
cout << endl;
cout << "x =" << ptr->Input_x() << endl;
cout << "y = " << ptr->InPut_y() << endl;
cout << "z = " << ptr->Input_z() << endl;
break;
case 4:
//need help with shift numbers
//is that going to work on work
cout << "Enter the point that you would like to shift." << endl;
cout << "x = ";
cin >> x;
cout << "y = ";
cin >> y;
cout << "z = ";
cin >> z;
ptr->shiftPoint(x, y, z);
break;
case 5:
cout << "x =" << ptr->Input_x() << endl;
cout << "y= " << ptr->InPut_y() << endl;
cout << "z = " << ptr->Input_z() << endl;
default:
break;

}

return 0;
}
}

=========================================================

Now it is working without any error

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