Package com.luciad.ais.geodesy

Class TLcdForwardAzimuthUtil

java.lang.Object
com.luciad.ais.geodesy.TLcdForwardAzimuthUtil
public class TLcdForwardAzimuthUtil extends Object
Class containing utility methods for handling forward azimuths.

  • Constructor Summary

    Constructors
    Constructor
    Description
    TLcdForwardAzimuthUtil()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    static double
    forwardAzimuth2ArcAngle(double aForwardAzimuth)
    Convert a forward azimuth (0 is North, clockwise) to an angle value that can be used for an ILcdArc (0 is East, counter-clockwise).
    static double
    forwardAzimuthDelta2ArcDelta(double aAzimuth1, double aAzimuth2)
    Convert the difference between two forward azimuths (0 is north, clockwise) to an arc size that can be used for painting (0 is east, counter-clockwise).
    static double
    forwardAzimuthDelta2ArcDelta(double aAzimuth1, double aAzimuth2, boolean aClockwise)
    Convert the difference between to forward azimuths (0 is north, clockwise) to an arc size that can be used for painting (0 is east, counter-clockwise).
    static double
    getForwardAzimuthDelta(double aAzimuth1, double aAzimuth2)
    Returns the difference (in degrees) between two forward azimuths.
    static boolean
    isForwardAzimuthClockwise(double aFa1, double aFa2)
    Return true if a turn from forward azimuth 1 to 2 goes in clockwise direction.
    static double
    normalizeForwardAzimuth(double aForwardAzimuth)
    Normalize a given forward azimuth: the result is always in the interval [0;360[.

    Methods inherited from class java.lang.Object

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

  • Constructor Details

    • TLcdForwardAzimuthUtil

      public TLcdForwardAzimuthUtil()

  • Method Details

    • isForwardAzimuthClockwise

      public static boolean isForwardAzimuthClockwise(double aFa1, double aFa2)
      Return true if a turn from forward azimuth 1 to 2 goes in clockwise direction.
      Parameters:
      aFa1 - Forward azimuth 1 (degrees).
      aFa2 - Forward azimuth 2 (degrees).
      Returns:
      true if a turn from forward azimuth 1 to 2 goes in clockwise direction.

    • forwardAzimuthDelta2ArcDelta

      public static double forwardAzimuthDelta2ArcDelta(double aAzimuth1, double aAzimuth2)
      Convert the difference between two forward azimuths (0 is north, clockwise) to an arc size that can be used for painting (0 is east, counter-clockwise). The result is in the interval ]-180;180] degrees.
      Parameters:
      aAzimuth1 - First forward azimuth (degrees).
      aAzimuth2 - Second forward azimuth (degrees).
      Returns:
      Difference between the two azimuths, normalized to the interval ]-180;180] degrees.

    • forwardAzimuthDelta2ArcDelta

      public static double forwardAzimuthDelta2ArcDelta(double aAzimuth1, double aAzimuth2, boolean aClockwise)
      Convert the difference between to forward azimuths (0 is north, clockwise) to an arc size that can be used for painting (0 is east, counter-clockwise). The result is an arc that goes from the first azimuth to the second in the given direction: clockwise if aClockwise == true, counter-clockwise otherwise.
      Parameters:
      aAzimuth1 - First forward azimuth (degrees).
      aAzimuth2 - Second forward azimuth (degrees).
      aClockwise - True to return an arc in clockwise direction.
      Returns:
      Angle difference between the two given azimuths, taking into account the given direction (clockwise/counter-clockwise).

    • normalizeForwardAzimuth

      public static double normalizeForwardAzimuth(double aForwardAzimuth)
      Normalize a given forward azimuth: the result is always in the interval [0;360[.
      Parameters:
      aForwardAzimuth - Azimuth to normalize (degrees).
      Returns:
      An angle in the range [0;360[.

    • forwardAzimuth2ArcAngle

      public static double forwardAzimuth2ArcAngle(double aForwardAzimuth)
      Convert a forward azimuth (0 is North, clockwise) to an angle value that can be used for an ILcdArc (0 is East, counter-clockwise).
      Parameters:
      aForwardAzimuth - Given forward azimuth (degrees).
      Returns:
      Angle value that can be used for an ILcdArc.

    • getForwardAzimuthDelta

      public static double getForwardAzimuthDelta(double aAzimuth1, double aAzimuth2)
      Returns the difference (in degrees) between two forward azimuths. The return value is unsigned!