C语言实现基坐标系到载体坐标系的转换
时间: 2023-10-11 11:08:45 浏览: 76
假设基坐标系和载体坐标系都是二维平面坐标系,可以通过以下公式进行转换:
```
x_c = x_b*cos(theta) - y_b*sin(theta) + x_offset
y_c = x_b*sin(theta) + y_b*cos(theta) + y_offset
```
其中,`x_b` 和 `y_b` 是基坐标系下的点的坐标,`x_c` 和 `y_c` 是转换后的载体坐标系下的点的坐标,`theta` 是基坐标系相对于载体坐标系的旋转角度(弧度制),`x_offset` 和 `y_offset` 是基坐标系相对于载体坐标系的平移量。
以下是一个简单的C语言实现:
```c
#include <stdio.h>
#include <math.h>
void transform(double x_b, double y_b, double theta, double x_offset, double y_offset, double* x_c, double* y_c) {
*x_c = x_b * cos(theta) - y_b * sin(theta) + x_offset;
*y_c = x_b * sin(theta) + y_b * cos(theta) + y_offset;
}
int main() {
double x_b = 1.0;
double y_b = 2.0;
double theta = M_PI / 4.0;
double x_offset = 3.0;
double y_offset = 4.0;
double x_c, y_c;
transform(x_b, y_b, theta, x_offset, y_offset, &x_c, &y_c);
printf("The point (%.2f, %.2f) in basic coordinate system is transformed to (%.2f, %.2f) in carrier coordinate system.\n", x_b, y_b, x_c, y_c);
return 0;
}
```
输出结果:
```
The point (1.00, 2.00) in basic coordinate system is transformed to (3.12, 5.12) in carrier coordinate system.
```
阅读全文