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point.cpp
资源名称:c.rar [点击查看]
上传用户:puke2000
上传日期:2022-07-25
资源大小:912k
文件大小:1k
源码类别:
C#编程
开发平台:
Visual C++
- //=====================================
- // point.cpp
- //=====================================
- #include"point.h"
- #include<cmath>
- using namespace std;
- //-------------------------------------
- double Point::PI = 3.14159265;
- //-------------------------------------
- Point::Point(double a, double b): x(a), y(b){}
- double Point::xOffset()const{ return x; }
- double Point::yOffset()const{ return y; }
- double Point::angle()const{ return (180/PI)*atan2(y, x); }
- double Point::radius()const{ return sqrt(x*x + y*y); }
- void Point::moveTo(double a, double b){ x = a, y = b; }
- Point Point::operator+(const Point& d)const{return Point(x+d.x, y+d.y);}
- Point& Point::operator+=(const Point& d){
- x+=d.x; y+=d.y;
- return *this;
- }//------------------------------------