Thread: ?

Dear C++ Programmers,

I need your help.
i would like to ask how I could get my program to read coordinates i.e (21.5 W) this is a longitude!

Thanks,
Mubanga

Dear C++ Programers,

I want to know if there is a code I could write in C++ or import from Java or C and incorporate in my C++ program to accept input in the form of Coordinates namely; longitude and latitude e.g 21.5W {note all values in degrees} and use them in a calculation involving the Azimuthal angle of a satellite earth station.

Thanks alot,
Mubanga

are you trying to launch nuclear weapons?

j/k

are you looking for something like this?

Code:

#include<iostream.h>
#include<ctype.h>

int intcoordinate;
char chardirection[1];

main()
{
int toupper(int c);
cout << "Enter the coordinates" << endl;
cin >> intcoordinate;
cout << "Enter the direction(E, W, S, N)" << endl;
cin >> chardirection[0];
chardirection[0] = toupper(int(chardirection[0]))
if(int(chardirection[0]) == 87)
{
//code goes here for West direction
}
}
//then all you need to do make 3 more if then statements
//one for each direction and enter your math equation thing

hope that helps

21.5 W is either a string, if it is all one variable, or a combination of a double and a character. If you view it as the latter, then having the coordinates be a class or a struct has some merit. Here's a skeletal version of a possible class:

class Longitude
{
private:
double value;
char direction;

public:
//using default methods
void setValue(double);
void setDirection(char );
double getValue() const;
char getDirection() const;
void display() const;
};

//example of function definition:
void Longitude::display()
{
cout << value << ' ' << direction;
}

int main()
{
//declare instance of Longitude using default default constructor
Longitude coord1;

//supply instance of Longitude with hard coded data, not very flexible
coord1.setValue(54.2);
coord1.setDirection('W');

//do something with the object
coord1.display();

//and away you go.


It is easier to code, but produces a less stable environment, if you use all public members. Using private data members with public accessor and mutator functions is the prefered approach in the long run.