UtilCircle2D_F64

java.lang.Object

georegression.geometry.UtilCircle2D_F64

public class UtilCircle2D_F64 extends Object

Functions related to circles.

Constructor Summary

Constructors

Constructor

Description

UtilCircle2D_F64()
Method Summary

Modifier and Type

Method

Description

static boolean

circle(Point2D_F64 x0, Point2D_F64 x1, Point2D_F64 x2, Circle2D_F64 circle)

Given three points find the circle that intersects all three.

static double

circleRadiusSq(Point2D_F64 x0, Point2D_F64 x1, Point2D_F64 x2)

Radius squares of the circle that passes through these three points.

static double

evaluate(double x, double y, Circle2D_F64 circle)

Computes (x-x_c)**2 + (y-y_c)**2 - r.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details
- UtilCircle2D_F64
  
  public UtilCircle2D_F64()
Method Details
- evaluate
  
  public static double evaluate(double x, double y, Circle2D_F64 circle)
  
  Computes (x-x_c)**2 + (y-y_c)**2 - r. If (x,y) lies on the circle then it should be 0.
  
  Parameters:
  
  x - x-coordinate of a point
  
  y - y-coordinate of a point
  
  circle - circle
  
  Returns:
  
  Result of the equation
- circle
  
  public static boolean circle(Point2D_F64 x0, Point2D_F64 x1, Point2D_F64 x2, Circle2D_F64 circle)
  
  Given three points find the circle that intersects all three. If false is returned that means the points all lie along a line and there is no circle.
  
  Parameters:
  
  x0 - Point
  
  x1 - Point
  
  x2 - Point
  
  circle - (Output) found circle
  
  Returns:
  
  true if a circle was found or false if not
- circleRadiusSq
  
  public static double circleRadiusSq(Point2D_F64 x0, Point2D_F64 x1, Point2D_F64 x2)
  
  Radius squares of the circle that passes through these three points.
  
  Parameters:
  
  x0 - Point
  
  x1 - Point
  
  x2 - Point
  
  Returns:
  
  Radius squares of circle or NaN if colinear