Package org.eclipse.mosaic.lib.math

Class MathUtils

java.lang.Object
org.eclipse.mosaic.lib.math.MathUtils
public class MathUtils extends Object

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    static final double
    EPSILON_D
     
    static final float
    EPSILON_F
     

  • Constructor Summary

    Constructors
    Constructor
    Description
    MathUtils()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    static double
    angleDif(double a, double b)
     
    static double
    angleDifDeg(double a, double b)
     
    static double
    clamp(double d, double min, double max)
     
    static float
    clamp(float d, float min, float max)
     
    static int
    clamp(int i, int min, int max)
     
    static int
    gcd(int a, int b)
    Returns the greatest common divisor of a and b (e.g.
    static boolean
    isFuzzyEqual(double a, double b)
     
    static boolean
    isFuzzyEqual(double a, double b, double epsilon)
     
    static boolean
    isFuzzyEqual(float a, float b)
     
    static boolean
    isFuzzyEqual(float a, float b, float epsilon)
     
    static boolean
    isFuzzyZero(double a)
     
    static boolean
    isFuzzyZero(float a)
     
    static double
    max(double a, double b, double c)
     
    static float
    max(float a, float b, float c)
     
    static double
    min(double a, double b, double c)
     
    static float
    min(float a, float b, float c)
     
    static double
    normalizeDegree(double deg)
     
    static boolean
    pnpoly(int nvert, float[] vertx, float[] verty, float testx, float testy)
    Point Inclusion in Polygon Test.
    static double
    wrapAnglePiPi(double a)
     
    static float
    wrapAnglePiPi(float a)
     

    Methods inherited from class java.lang.Object

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

  • Field Details

  • Constructor Details

    • MathUtils

      public MathUtils()

  • Method Details

    • isFuzzyZero

      public static boolean isFuzzyZero(float a)

    • isFuzzyZero

      public static boolean isFuzzyZero(double a)

    • isFuzzyEqual

      public static boolean isFuzzyEqual(float a, float b)

    • isFuzzyEqual

      public static boolean isFuzzyEqual(float a, float b, float epsilon)

    • isFuzzyEqual

      public static boolean isFuzzyEqual(double a, double b)

    • isFuzzyEqual

      public static boolean isFuzzyEqual(double a, double b, double epsilon)

    • clamp

      public static float clamp(float d, float min, float max)

    • clamp

      public static double clamp(double d, double min, double max)

    • clamp

      public static int clamp(int i, int min, int max)

    • wrapAnglePiPi

      public static float wrapAnglePiPi(float a)

    • wrapAnglePiPi

      public static double wrapAnglePiPi(double a)

    • angleDif

      public static double angleDif(double a, double b)

    • angleDifDeg

      public static double angleDifDeg(double a, double b)

    • normalizeDegree

      public static double normalizeDegree(double deg)

    • max

      public static float max(float a, float b, float c)

    • min

      public static float min(float a, float b, float c)

    • max

      public static double max(double a, double b, double c)

    • min

      public static double min(double a, double b, double c)

    • gcd

      public static int gcd(int a, int b)
      Returns the greatest common divisor of a and b (e.g. gcd(12, 18) = 6)
      Parameters:
      a - first number
      b - second number
      Returns:
      greatest common divisor of a and b.

    • pnpoly

      public static boolean pnpoly(int nvert, float[] vertx, float[] verty, float testx, float testy)
      Point Inclusion in Polygon Test. Defines if a points lies within a polygon
      Parameters:
      nvert - Number of vertices in the polygon. Whether to repeat the first vertex at the end is discussed below.
      vertx - Array containing the x-coordinates of the polygon's vertices.
      verty - Array containing the y-coordinates of the polygon's vertices.
      testx - X-coordinate of the test point.
      testy - Y-coordinate of the test point.
      Returns:
      true if point lies within the polygon, false otherwise