如何在现代C++编程中应用中点画法来绘制椭圆？请结合代码示例详细解释。

中点画法是一种高效的算法，用于在像素矩阵中绘制椭圆。在现代C++编程中，我们通常需要结合图形库来实现这一功能。尽管传统的`<graphics.h>`库在现代操作系统中不再适用，但我们可以采用类似的方法，结合如SFML、SDL或者OpenGL这样的图形库来绘制椭圆。

参考资源链接：[C++实现中点画法绘制椭圆](https://wenku.csdn.net/doc/45a1o5nos1?spm=1055.2569.3001.10343)

下面是一个使用C++和中点画法绘制椭圆的示例代码，这里假设使用SFML库来处理图形显示：

#include <SFML/Graphics.hpp>
#include <cmath>

void drawEllipse(sf::RenderWindow& window, int centerX, int centerY, int a, int b) {
    int x = 0;
    int y = b;
    int d1 = b*b - a*b + a*a/4;
    int d2 = 0;

    // 绘制初始四个点
    sf::CircleShape shape(1);
    shape.setFillColor(sf::Color::White);
    shape.setPosition(centerX + x, centerY + y);
    window.draw(shape);
    shape.setPosition(centerX - x, centerY + y);
    window.draw(shape);
    shape.setPosition(centerX + x, centerY - y);
    window.draw(shape);
    shape.setPosition(centerX - x, centerY - y);
    window.draw(shape);

    while (y > x) {
        x++;

        // 计算新值
        d1 += b*b + a*a*(4*x - 6);
        if (d1 < 0) {
            d1 += a*a + b*b*(4*x - 6) + 12*x - 9;
        } else {
            y--;
            d1 += a*a*(4*x - 6) + 12*x - 9;
            d2 += b*b*(4*y - 4) + 4*y - 3;
        }

        // 绘制新的像素点
        shape.setPosition(centerX + x, centerY + y);
        window.draw(shape);
        shape.setPosition(centerX - x, centerY + y);
        window.draw(shape);
        shape.setPosition(centerX + x, centerY - y);
        window.draw(shape);
        shape.setPosition(centerX - x, centerY - y);
        window.draw(shape);

        if (d2 < 0) {
            d2 += a*a*(4*y - 4) + 4*y - 3;
        } else {
            x++;
            d2 += b*b*(4*y - 4) + 12*y - 9;
            d1 += a*a*(4*x - 6) + 4*x - 3;
        }

        shape.setPosition(centerX + x, centerY + y);
        window.draw(shape);
        shape.setPosition(centerX - x, centerY + y);
        window.draw(shape);
        shape.setPosition(centerX + x, centerY - y);
        window.draw(shape);
        shape.setPosition(centerX - x, centerY - y);
        window.draw(shape);
    }
}

int main() {
    sf::RenderWindow window(sf::VideoMode(800, 600), 

参考资源链接：[C++实现中点画法绘制椭圆](https://wenku.csdn.net/doc/45a1o5nos1?spm=1055.2569.3001.10343)