贝塞尔曲线绘制（C++实现，计算机图形学）

#include
#include
#include
#include
using namespace std;

void GetBezier(const int* xArray, const int* yArray, const unsigned& n)
{
	initgraph(1000, 700);
	for (float t = 0; t <= 1; t += 0.0001)
	{
		vector<double>xvec, yvec;
		for (unsigned i = 0; i < n; i++)
		{
			xvec.push_back(xArray[i]);
			yvec.push_back(yArray[i]);
		}
		for (unsigned Current_PointNum = n; Current_PointNum > 1; Current_PointNum--)
		{
			for (unsigned i = 0; i < Current_PointNum - 1; i++)
			{
				xvec[i] = (1 - t) * xvec[i] + t * xvec[i + 1];
				yvec[i] = (1 - t) * yvec[i] + t * yvec[i + 1];
			}
		}
		putpixel(xvec[0], yvec[0], WHITE);
	}
	_getch();
	closegraph();
	return;
}

int main(void)
{
	unsigned pointNum;
	cout << "请输入控制多边形点的个数：";
	cin >> pointNum;
	int* xArray = new int[pointNum];
	int* yArray = new int[pointNum];
	cout << "请分别输入各个点的横纵坐标值：" << endl;
	for (int i = 0; i < pointNum; i++)
	{
		cin >> xArray[i] >> yArray[i];
	}
	cout << "参数确认完毕，按任意键开始绘图..." << endl;
	_getch();
	GetBezier(xArray,yArray,pointNum);
	return 0;
}