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есть реализация классов и их итераторов: circle.h | Код |
#ifndef CIRCLE_H
#define CIRCLE_H
#include "point.h"
class Circle
{
Point centre;
double rad;
public:
class Circle_iter;
friend class Circle_iter;
Circle();
Circle(double x, double y, double rad);
Circle(Point ¢re, double rad);
};
#endif // CIRCLE_H
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circle_iter.h | Код |
#ifndef CIRCLE_ITER_H
#define CIRCLE_ITER_H
#include "circle.h"
const double pi=3.14159265;
class Circle::Circle_iter
{
float f;
const Circle& th;
float step;
public:
Circle_iter(const Circle &t);
Point next();
Point begin();
void Set_step(float );
float Get_step();
bool end();
};
#endif // CIRCLE_ITER_H
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line.h | Код |
#ifndef LINE_H
#define LINE_H
#include "point.h"
#include <math.h>
class Line
{
Point first, second;
public:
Line();
Line(Point, Point);
Line(double, double, double, double);
double lenght();
};
#endif // LINE_H
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point.h | Код |
#ifndef POINT_H
#define POINT_H
#include <iostream>
using namespace std;
class Point
{
public:
double x;
double y;
Point(double, double);
Point();
friend ostream& operator << (ostream& stream, const Point &p);
bool operator==(const Point&);
};
#endif // POINT_H
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triangle.h | Код |
#ifndef TRIANGLE_H
#define TRIANGLE_H
#include "point.h"
class Triangle
{
public:
Point mas[3];
class Triangle_iter;
friend class Triangle_iter;
Triangle();
Triangle(Point f, Point s, Point t);
};
#endif // TRIANGLE_H
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triangle_iter.h | Код |
#ifndef TRIANGLE_ITER_H
#define TRIANGLE_ITER_H
#include "triangle.h"
class Triangle_iter
{
const Triangle &th;
Point pres;
int wpair[2];
double xstep;
double ystep;
bool xgo;
void set();
public:
Triangle_iter(Triangle &);
void Set_xstep(double );
void Set_ystep(double );
Point begin();
bool end();
Point next();
};
#endif // TRIANGLE_ITER_H
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circle.cpp | Код |
#include "..\include\circle.h"
Circle::Circle(): rad(0.0)
{}
Circle::Circle(double xt, double yt, double radt): centre(xt, yt), rad(radt)
{}
Circle::Circle(Point ¢r, double radt):centre(centr), rad(radt)
{}
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circle_iter.cpp | Код |
#include "..\include\circle_iter.h"
#include <math.h>
Circle::Circle_iter::Circle_iter(const Circle& t): f(0.0), th(t), step(0.1)
{}
Point Circle::Circle_iter::begin()
{
f=-(step);
return next();
}
Point Circle::Circle_iter::next()
{
double x1, y1;
f+=step;
x1=th.centre.x+th.rad*cos(f*pi);
y1=th.centre.y+th.rad*sin(f*pi);
return Point(x1, y1);
}
bool Circle::Circle_iter::end()
{
return f>=2.0;
}
void Circle::Circle_iter::Set_step(float l)
{
step=l;
}
float Circle::Circle_iter::Get_step()
{
return step;
}
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line.cpp | Код |
#include "..\include\line.h"
Line::Line():first(0.0,0.0), second(0.0,0.0)
{}
Line::Line(Point k, Point d):first(k), second(d)
{}
Line::Line(double x1, double y1, double x2, double y2): first(x1, y1), second(x2, y2)
{}
double Line::lenght()
{
return sqrt(pow(second.x - first.x, 2) + pow(second.y - first.y, 2));
}
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point.cpp | Код |
#include "..\include\point.h"
Point::Point(double xz, double yz):x(xz), y(yz)
{}
Point::Point():x(0.0), y(0.0)
{}
ostream& operator<<(ostream& stream, const Point &p)
{
stream << "x: " << p.x << "\ny: " << p.y << endl;
return stream;
}
bool Point::operator==(const Point& p)
{
return (x==p.x && y==p.y);
}
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triangle.cpp | Код | #include "..\include\triangle.h"
Triangle::Triangle()
{}
Triangle::Triangle(Point f, Point s, Point t)
{
mas[0]=f;
mas[1]=s;
mas[2]=t;
}
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triangle_iter.cpp | Код |
#include "..\include\triangle_iter.h"
Triangle_iter::Triangle_iter(Triangle &t):th(t)
{
wpair[0]=0;
ystep=xstep=0;
wpair[1]=0;
}
void Triangle_iter::Set_xstep(double k)
{
xstep=k;
}
void Triangle_iter::Set_ystep(double k)
{
ystep=k;
}
Point Triangle_iter::begin()
{
wpair[1]=1;
pres=th.mas[0];
set();
return pres;
}
void Triangle_iter::set()
{
if(wpair[0]==0 && wpair[1]==1)
{
wpair[0]=1;
wpair[1]=2;
}
if(wpair[0]==1 && wpair[1]==2)
{
wpair[0]=2;
wpair[1]=0;
}
if(wpair[0]==2 && wpair[1]==0)
{
wpair[0]=0;
wpair[1]=1;
}
pres=th.mas[wpair[0]];
double k=th.mas[wpair[1]].x - pres.x;
if(k)
{
xstep=k>0 ? xstep : -(xstep);
xgo=true;
}
k=th.mas[wpair[1]].y - pres.y;
if(k)
{
ystep= (k>0)? ystep : -(ystep);
xgo=false;
}
}
Point Triangle_iter::next()
{
if(pres==th.mas[wpair[1]]) set();
if(xgo)
{
pres.x+=xstep;
pres.y=((th.mas[wpair[1]].y - pres.y)*pres.x - ((pres.x - xstep)*th.mas[wpair[1]].y + pres.y*(th.mas[wpair[1]].x)))/(th.mas[wpair[1]].x - (pres.x - xstep));
}
if(!xgo)
{
pres.y+=ystep;
pres.x=((pres.x - th.mas[wpair[1]].x)*pres.y - (pres.x*th.mas[wpair[1]].y + (pres.y - ystep)*(th.mas[wpair[1]].x)))/(pres.y - ystep - th.mas[wpair[1]].y);
}
return pres;
}
bool Triangle_iter::end()
{
if(wpair[1]==0 && pres==th.mas[0]) return true;
else return false;
}
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и мейн | Код |
#include <iostream>
#include "include\circle_iter.h"
#include "include\triangle_iter.h"
using namespace std;
int main()
{
Circle p(0, 0, 5);
Triangle tr(Point(21,1), Point(21,2), Point(50,50));
Triangle::Triangle_iter triter(tr);
Circle::Circle_iter pos(p);
cout << pos.begin();
while(!pos.end())
{
cout << pos.next();
}
cout << triter.begin();
while(!triter.end())
{
cout << triter.next();
}
system("pause");
return 0;
}
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на все это добро студия выдает | Код |
1>k:\prog\laba5\main.cpp(11) : error C2079: 'triter' uses undefined class 'Triangle::Triangle_iter'
1>k:\prog\laba5\main.cpp(11) : error C2440: 'initializing' : cannot convert from 'Triangle' to 'int'
1> No user-defined-conversion operator available that can perform this conversion, or the operator cannot be called
1>k:\prog\laba5\main.cpp(18) : error C2228: left of '.begin' must have class/struct/union
1> type is 'int'
1>k:\prog\laba5\main.cpp(19) : error C2228: left of '.end' must have class/struct/union
1> type is 'int'
1>k:\prog\laba5\main.cpp(19) : fatal error C1903: unable to recover from previous error(s); stopping compilation
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не могу понять в чем дело... объясните пожалуйста) так прикреплены файлы проекта
Присоединённый файл ( Кол-во скачиваний: 2 )
laba5.rar 171,04 Kb |
[C++] устранении ошибки C2079, uses undefined class 
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