TestData

java.lang.Object

org.opensourcephysics.display2d.TestData

public class TestData extends Object

Title: TestData Description: Static methods to generate test data for various programs. Copyright: Copyright (c) 2005 Gould, Christian, and Tobochnik

Version:: 1.0
Author:: Wolfgang Christian

Constructor Summary

Constructors

Constructor

Description

TestData()
Method Summary

Modifier and Type

Method

Description

static double[][][]

circulatingVectorField(int nx, int ny)

static double

dipole(double x, double y)

Dipole distribution with poles at +1 and -1 on the x axis.

static double[][][]

dipoleScalarField(GridPointData pointdata)

Generate a dipole scalar field.

static double[]

dipoleVector(double x, double y)

Dipole field with poles at +1 and -1 on the x axis.

static double[][][]

dipoleVectorField(int nx, int ny, double xmin, double xmax, double ymin, double ymax)

static double

gaussian(double x, double y, double sigma)

A 2D Gaussian distribution function centered at x=0 and y=0 and standard deviation of 1.

static double[][][]

gaussianScalarField(GridPointData pointdata)

Generate a gaussian scalar field.

static void

randomScalarField(GridPointData pointdata)

Generate a random scalar field.

static double

saddle(double x, double y)

Saddle function centered at x=0 and y=0.

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

Constructor Details
- TestData
  
  public TestData()
Method Details
- dipole
  
  public static double dipole(double x, double y)
  
  Dipole distribution with poles at +1 and -1 on the x axis.
- gaussian
  
  public static double gaussian(double x, double y, double sigma)
  
  A 2D Gaussian distribution function centered at x=0 and y=0 and standard deviation of 1.
- saddle
  
  public static double saddle(double x, double y)
  
  Saddle function centered at x=0 and y=0.
- dipoleScalarField
  
  public static double[][][] dipoleScalarField(GridPointData pointdata)
  
  Generate a dipole scalar field.
- gaussianScalarField
  
  public static double[][][] gaussianScalarField(GridPointData pointdata)
  
  Generate a gaussian scalar field.
- randomScalarField
  
  public static void randomScalarField(GridPointData pointdata)
  
  Generate a random scalar field.
- dipoleVector
  
  public static double[] dipoleVector(double x, double y)
  
  Dipole field with poles at +1 and -1 on the x axis. Field strength is proportional to 1/r.
- circulatingVectorField
  
  public static double[][][] circulatingVectorField(int nx, int ny)
- dipoleVectorField
  
  public static double[][][] dipoleVectorField(int nx, int ny, double xmin, double xmax, double ymin, double ymax)