Package org.opentrafficsim.core.math

Class Scalar3D

java.lang.Object
org.opentrafficsim.core.math.Scalar3D
public final class Scalar3D
extends java.lang.Object
Calculate between Polar (spherical) and Cartesian (xyz) coordinates.

Copyright (c) 2013-2019 Delft University of Technology, PO Box 5, 2600 AA, Delft, the Netherlands. All rights reserved.
BSD-style license. See OpenTrafficSim License.

$LastChangedDate: 2015-07-24 02:58:59 +0200 (Fri, 24 Jul 2015) $, @version $Revision: 1147 $, by $Author: averbraeck $, initial version Dec 11, 2015
Author:
Alexander Verbraeck, Peter Knoppers

  • Method Summary

    Modifier and Type Method Description
    static Direction cartesianToPhi​(double x, double y)
    Get the (polar) phi angle, which is the projected angle in the xy-plane from the x direction.
    static double cartesianToRadius​(double x, double y, double z)
    Get the (polar) radius based on Cartesian coordinates.
    static Direction cartesianToTheta​(double x, double y, double z)
    Get the (polar) theta angle, which is the angle from the z-direction, from Cartesian coordinates.
    static double[] polarToCartesian​(double r, double theta, double phi)  

    Methods inherited from class java.lang.Object

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

  • Method Details

    • polarToCartesian

      public static double[] polarToCartesian​(double r, double theta, double phi)
      Parameters:
      r - double; the radius
      theta - double; the angle from the z direction
      phi - double; the projected angle in the xy-plane from the x direction
      Returns:
      a double array [x, y, z] with cartesian coordinates

    • cartesianToRadius

      public static double cartesianToRadius​(double x, double y, double z)
      Get the (polar) radius based on Cartesian coordinates.
      Parameters:
      x - double; the x-coordinate
      y - double; the y-coordinate
      z - double; the z-coordinate
      Returns:
      the radius, which is the distance from (0,0,0)

    • cartesianToTheta

      public static Direction cartesianToTheta​(double x, double y, double z)
      Get the (polar) theta angle, which is the angle from the z-direction, from Cartesian coordinates.
      Parameters:
      x - double; the x-coordinate
      y - double; the y-coordinate
      z - double; the z-coordinate
      Returns:
      the radius, which is the distance from (0,0,0)

    • cartesianToPhi

      public static Direction cartesianToPhi​(double x, double y)
      Get the (polar) phi angle, which is the projected angle in the xy-plane from the x direction.
      Parameters:
      x - double; the x-coordinate
      y - double; the y-coordinate
      Returns:
      the projected angle of direction in the xy-plane