c++代码实现N阶贝塞尔曲线

很高兴可以回答你的问题。实现N阶贝塞尔曲线的c代码如下：

#include <stdio.h>
#include <stdlib.h>

typedef struct {
    float x;
    float y;
} point;

void bezier_curve(point* pts, int num_pts, int steps) {
    float t, u;
    point* tmp_pts = (point*) malloc(sizeof(point) * num_pts);

    for (int s = 0; s <= steps; s++) {
        t = (float) s / (float) steps;
        u = 1.0f - t;

        for (int i = 0; i < num_pts; i++) {
            tmp_pts[i].x = pts[i].x;
            tmp_pts[i].y = pts[i].y;

            for (int j = 1; j <= i; j++) {
                tmp_pts[i].x = u * tmp_pts[i].x + t * tmp_pts[i - 1].x;
                tmp_pts[i].y = u * tmp_pts[i].y + t * tmp_pts[i - 1].y;
            }
        }

        printf("%f %f\n", tmp_pts[num_pts - 1].x, tmp_pts[num_pts - 1].y);
    }

    free(tmp_pts);
}

int main() {
    point pts[] = {{0,0},{1,2},{2,4},{3,4},{4,2},{5,0}};
    bezier_curve(pts, 6, 50);

    return 0;
}

这段代码使用了贝塞尔曲线的基本算法来实现N阶贝塞尔曲线。我们可以通过修改pts数组和steps参数来得到不同的曲线效果。