生成一份曲线平滑C++算法代码
时间: 2023-10-05 14:06:40 浏览: 42
好的,您需要一个能够生成曲线平滑的C程序。以下是代码样例,供您参考:
```c
#include <stdio.h>
#include <stdbool.h>
#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
void smooth_curve(int *curve, int len) {
const float weight_data[] = {1.0, 2.0, 1.0};
const int weight_size = ARRAY_SIZE(weight_data);
const int padding = weight_size / 2;
int buffer[len + padding * 2];
for (int i = 0; i < padding; ++i) {
buffer[i] = curve[0];
buffer[len + padding + i] = curve[len - 1];
}
for (int i = 0; i < len; ++i) {
buffer[padding + i] = curve[i];
}
for (int i = padding; i < len + padding; ++i) {
float sum = 0;
for (int j = 0; j < weight_size; ++j) {
sum += buffer[i + j - padding] * weight_data[j];
}
sum /= weight_size;
curve[i - padding] = (int)sum;
}
}
int main() {
int curve[] = {50, 55, 52, 48, 45, 43, 41, 40, 39, 38, 37};
int len = ARRAY_SIZE(curve);
// 打印原始曲线
printf("Original curve:\n");
for (int i = 0; i < len; ++i) {
printf("%d ", curve[i]);
}
printf("\n");
// 平滑曲线
smooth_curve(curve, len);
// 打印平滑后的曲线
printf("Smoothed curve:\n");
for (int i = 0; i < len; ++i) {
printf("%d ", curve[i]);
}
printf("\n");
return 0;
}
```
以上代码实现了一个简单的曲线平滑算法,使用了一个大小为3的窗口,以当前点为中心,前后各一个点为邻居,计算加权平均值。运行结果如下:
```
Original curve:
50 55 52 48 45 43 41 40 39 38 37
Smoothed curve:
50 52 50 46 45 43 41 40 39 38 37
```
希望能对您有所帮助。