在C++中用类画一个圆

我目前正在编写一个程序，我必须从将在控制台中输出的类(数据结构(中绘制三个圆形。

我的程序遇到的问题是我的代码编译，但是，输出变得疯狂并且没有画圆圈。

我仍然是C++新手，如果有人可以帮助我解决这个问题，我将不胜感激。

我当前的代码：

////// Circle.h
#include <iostream>
#include <stdlib.h>
#include <sstream>
#include <time.h>
#include <cmath>
using namespace std;
class Circle
{
private:
char type;
int serialNumber = 0;
double radius = 0.0;
double density = 0.0;
public:
Circle(char, int, double);
Circle(char, int, double, double);
~Circle();
void setType(char);
void setSerialNumber(int);
void setRadius(double);
void setDensity(double);
char getType() const;
int getSerialNumber() const;
double getRadius() const;
double getDensity() const;
};
////// Circle.cpp
// #include "Circle.h"
Circle::Circle(char c, int s, double r)
{
type = c;
serialNumber = s;
radius = r;
}
Circle::Circle(char c, int s, double r, double d)
{
type = c;
serialNumber = s;
radius = r;
density = d;
}
Circle::~Circle()
{
cout << "Shapes deleted!" << endl;
}
void Circle::setType(char c)
{
if(c == 'S' || c == 'C')
type = c;
}
void Circle::setSerialNumber(int s)
{
if(s > 0)
serialNumber = s;
}
void Circle::setRadius(double r)
{
if(r > 0)
radius = r;
}
void Circle::setDensity(double d)
{
if(d > 0)
density = d;
}
char Circle::getType() const
{
return type;
}
int Circle::getSerialNumber() const
{
return serialNumber;
}
double Circle::getRadius() const
{
return radius;
}
double Circle::getDensity() const
{
return density;
}
////// main.cpp
// #include "Circle.h"
void drawAll(Circle *[], int);
void drawType(Circle *);
void drawCircle(Circle *);
void drawSpray(Circle *);
void deleteAll(Circle *[], int);
/// For 'C' type the system should display a circle.
/// For 'S' type the system displays a spray pattern just like those used in Microsoft Paint.
int main(int argc, char** argv)
{
const int SIZE = 3;
Circle * arrCircle[SIZE] = {nullptr};
arrCircle[0] = new Circle('C', 1001, 20);
/// Create a Circle whose serial number is 1001 and the radius is 20.
/// Type 'C' indicates Circle type.
arrCircle[1] = new Circle('S', 1002, 25, 30);
/// Create a Spray whose serial number is 1002, the radius is 25, and the density is 30%.
/// Type 'S' indicates Spray type.
arrCircle[2] = new Circle('S', 1003, 40, 80);
/// Create a Spray whose serial number is 1003, the radius is 40, and the density is 80%.
drawAll(arrCircle, SIZE);
/// Draw all shapes. The function uses a for loop to display the circles and sprays in arrCircle.
deleteAll(arrCircle, SIZE);
/// Delete all shapes.
return 0;
}
void drawAll(Circle *arr[], int SIZE)
{
for(int i = 0; i < SIZE; i++)
if(arr[i] != nullptr)
{
cout << "Circle #" << arr[i]->getSerialNumber() << endl;
drawType(arr[i]);
}
}
void drawType(Circle *p)
{
if(p->getType() == 'C')
drawCircle(p);
else if(p->getType() == 'S')
drawSpray(p);
}
void drawCircle(Circle *p)
{
double r = p->getRadius();
int x = 0;
int y = 0;
int rto = 2;
for(int i = 0; i <= 40; i++)
{
for(int j = 0; j <= 40; i++)
{
x = abs(i - 20);
y = abs(j - 20);
r = pow(pow(x, rto) + pow(y, rto), 0.5);
if(19.5 < r && r < 20.5)
cout << "* ";
else
cout << "  ";
}
cout << endl;
}
}
void drawSpray(Circle *p)
{
double d = p->getDensity();
int x = 0;
int y = 0;
int rto = 2;
for(int i = 0; i <= 80; i++)
{
for(int j = 0; j <= 80; i++)
{
x = abs(i - 30);
y = abs(j - 30);
d = pow(pow(x, rto) + pow(y, rto), 0.5);
if(19.5 < d && d < 20.5)
cout << "* ";
else
cout << "  ";
}
cout << endl;
}
}
void deleteAll(Circle *arr[], int SIZE)
{
for(int i = 0; i < SIZE; i++)
{
if(arr[i] != nullptr)
delete arr[i];
}
}

我当前的输出：

Circle #1001
* * * * * * * * *

预期输出：(示例(

Circle #1001
*************
**                 **
**                       **
*                             *
**                               **
*                                   *
*                                     *
*                                       *
*                                       *
*                                       *
*                                       *
*                                       *
*                                       *
*                                       *
*                                     *
*                                   *
**                               **
*                             *
**                       **
**                 **
*************
Circle #1002
***************
***                   ***
**                           **
*                                 *
*                                     *
**                                       **
*                                           *
*                                             *
*                                               *
**                                               **
*                                                 *
*                                                 *
*                                                 *
*                                                 *
*                                                 *
*                                                 *
**                                               **
*                                               *
*                                             *
*                                           *
**                                       **
*                                     *
*                                 *
**                           **
***                   ***
***************
Circle #1003
*****************                                                   
***                         ***                                            
**                                   **                                        
*                                           *                                     
**                                               **                                  
*                                                     *                                
*                                                         *                              
*                                                             *                            
**                                                               **                          
*                                                                   *                         
*                                                                     *                        
*                                                                       *                       
*                                                                         *                      
*                                                                           *                     
*                                                                             *                    
*                                                                             *                    
*                                                                               *                   
*                                                                               *                   
*                                                                               *                   
*                                                                               *                   
*                                                                               *                   
*                                                                               *                   
*                                                                               *                   
*                                                                               *                   
*                                                                               *                   
*                                                                             *                    
*                                                                             *                    
*                                                                           *                     
*                                                                         *                      
*                                                                       *                       
*                                                                     *                        
*                                                                   *                         
**                                                               **                          
*                                                             *                            
*                                                         *                              
*                                                     *                                
**                                               **                                  
*                                           *                                     
**                                   **                                        
***                         ***                                            
*****************