Package cds.healpix.common.sphgeom

Class Vect3D

  • public final class Vect3D
extends java.lang.Object
    Three dimensional vector.
    Author:
    F.-X. Pineau

    • Constructor Summary

      Constructors 
      Constructor Description
      Vect3D​(double lonRad, double latRad)
      Constructor from the spherical coordinates on the unit sphere.
      Vect3D​(double x, double y, double z)
      Constructor for the Cartesian coordiantes.

    • Method Summary

      All Methods Static Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      Vect3D clone()  
      static Vect3D crossProd​(Vect3D v1, Vect3D v2)
      Returns the cross product of v1 by v2.
      double norm()
      Returns the norm of this vector.
      Vect3D normalized()
      Returns the vector having the same direction than this vector, but normalized (norm = 1).
      Vect3D opposite()
      Returns a vector having the opposite coordinates of this vector.
      static double scalarProd​(Vect3D v1, Vect3D v2)
      Returns the scalar product of v1 by v2.
      double toLat()
      Returns the latitude coordinates from the vector, in radians.
      double toLon()
      Returns the longitude coordinate from the vector, in radians.
      java.lang.String toString()  
      double x()
      Getter
      double y()
      Getter
      double z()
      Getter

      • Methods inherited from class java.lang.Object

        equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

    • Constructor Detail

      • Vect3D

        public Vect3D​(double x,
              double y,
              double z)
        Constructor for the Cartesian coordiantes.
        Parameters:
        x - first Cartesian coordinate
        y - second Cartesian coordinate
        z - thrid Cartesian coordinate

      • Vect3D

        public Vect3D​(double lonRad,
              double latRad)
        Constructor from the spherical coordinates on the unit sphere.
        Parameters:
        lonRad - longitude, in radians
        latRad - latitude, in radians

    • Method Detail

      • x

        public final double x()
        Getter
        Returns:
        the x cartesian coordinate

      • y

        public final double y()
        Getter
        Returns:
        the y cartesian coordinate

      • z

        public final double z()
        Getter
        Returns:
        the z cartesian coordinate

      • clone

        public Vect3D clone()

      • toLon

        public double toLon()
        Returns the longitude coordinate from the vector, in radians.
        Returns:
        the longitude coordinate from the vector, in radians.

      • toLat

        public double toLat()
        Returns the latitude coordinates from the vector, in radians.
        Returns:
        the latitude coordinates from the vector, in radians.

      • opposite

        public Vect3D opposite()
        Returns a vector having the opposite coordinates of this vector.
        Returns:
        a vector having the opposite coordinates of this vector.

      • norm

        public double norm()
        Returns the norm of this vector.
        Returns:
        the norm of this vector.

      • normalized

        public final Vect3D normalized()
        Returns the vector having the same direction than this vector, but normalized (norm = 1).
        Returns:
        the vector having the same direction than this vector, but normalized (norm = 1).

      • scalarProd

        public static double scalarProd​(Vect3D v1,
                                Vect3D v2)
        Returns the scalar product of v1 by v2.
        Parameters:
        v1 - vector 1
        v2 - vector 2
        Returns:
        the scalar product of v1 by v2.

      • crossProd

        public static Vect3D crossProd​(Vect3D v1,
                               Vect3D v2)
        Returns the cross product of v1 by v2.
        Parameters:
        v1 - vector 1
        v2 - vector 2
        Returns:
        the cross product of v1 by v2.

      • toString

        public final java.lang.String toString()
        Overrides:
        toString in class java.lang.Object