cn.lsmya.view.badgeview

类 MathUtil

java.lang.Object

cn.lsmya.view.badgeview.MathUtil

public class MathUtil
extends java.lang.Object

Created by chqiu on 2017/3/20.

字段概要

字段

限定符和类型	字段和说明
static double	CIRCLE_RADIAN

构造器概要

构造器

构造器和说明
MathUtil()

方法概要

限定符和类型	方法和说明
static void	getInnertangentPoints(PointF circleCenter, float radius, java.lang.Double slopeLine, java.util.List<PointF> points) this formula is designed by mabeijianxi website : http://blog.csdn.net/mabeijianxi/article/details/50560361
static float	getPointDistance(PointF p1, PointF p2)
static int	getQuadrant(PointF p, PointF center)
static double	getTanRadian(double atan, int quadrant)
static double	radianToAngle(double radian)

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

字段详细资料

CIRCLE_RADIAN

public static final double CIRCLE_RADIAN

另请参阅:

常量字段值

构造器详细资料

MathUtil

public MathUtil()

方法详细资料

getTanRadian

public static double getTanRadian(double atan,
                                  int quadrant)

radianToAngle

public static double radianToAngle(double radian)

getQuadrant

public static int getQuadrant(PointF p,
                              PointF center)

getPointDistance

public static float getPointDistance(PointF p1,
                                     PointF p2)

getInnertangentPoints

public static void getInnertangentPoints(PointF circleCenter,
                                         float radius,
                                         java.lang.Double slopeLine,
                                         java.util.List<PointF> points)

this formula is designed by mabeijianxi website : http://blog.csdn.net/mabeijianxi/article/details/50560361

参数:

circleCenter - The circle center point.

radius - The circle radius.

slopeLine - The slope of line which cross the pMiddle.