借鉴了此篇文章:https://www.cnblogs.com/orange1438/p/4583825.html,但做了小小的改动,原文是逆时针旋转,我实际
需要方位角的旋转是顺时针,所以小作改动。代码如下:
* @author xue
*
*/
public class rotatePoint {
/**
* @param p
* @param RotAng
* @return
*/
private point rotatePointUtil(point p,double RotAng) {
double RotAngF=360-RotAng;
RotAngF = (RotAngF * Math.PI / 180d);
double SinVal = (Math.sin(RotAngF));
double CosVal = (Math.cos(RotAngF));
double Nx = (p.x * CosVal - p.y * SinVal);
double Ny = (p.y * CosVal + p.x * SinVal);
return new point(Nx, Ny);
}
public static void main(String[] args) {
/**
* 测试
*/
point pt=new point(0,10);
point ptNew;
double RotAng=30;
rotatePoint rotUtil=new rotatePoint();
ptNew=rotUtil.rotatePointUtil(pt, RotAng);
System.out.println(ptNew.toString());
}
}
其中point类如下:
package cn.xue.Algorithm;
public class point {
public double x;
public double y;
public double getX() {
return x;
}
public void setX(double x) {
this.x = x;
}
public double getY() {
return y;
}
public void setY(double y) {
this.y = y;
}
public point(double x, double y) {
super();
this.x = x;
this.y = y;
}
@Override
public String toString() {
return "point [x=" + x + ", y=" + y + "]";
}
}