org.opengts.util
Class CurveFit

java.lang.Object
  org.opengts.util.CurveFit

public class CurveFit
extends java.lang.Object

Curve-fit profile matrix

Nested Class Summary

static class

CurveFit.Precision Precision Enum

Field Summary

static java.lang.String[]	ARG_POINTS
static java.lang.String[]	ARG_PRECISION
static java.lang.String[]	ARG_VALUE
protected java.math.MathContext	bdMathCtx
protected java.math.BigDecimal[]	bigCoeff
protected double[]	dblCoeff
protected XYPair	maxXY
protected XYPair	minXY
protected CurveFit.Precision	precision
static java.lang.String	PROP_CurveFit_defaultPrecision
protected XYPair[]	XY

Constructor Summary

protected	CurveFit() Protected constructor.
	CurveFit(CurveFit cf) Clone constructor (deep copy)
	CurveFit(java.lang.String xyListStr) String constructor
	CurveFit(java.lang.String xyListStr, CurveFit.Precision P) String constructor
	CurveFit(XYPair[] xy) XYPair constructor
	CurveFit(XYPair[] xy, CurveFit.Precision P) XYPair constructor

Method Summary

protected static java.math.BigDecimal[]	_CalculateCoefficients(java.math.BigDecimal[][] M, java.math.BigDecimal[] V, java.math.MathContext mc) Calculates the polynomial coefficients as "BigDecimal" values
protected static double[]	_CalculateCoefficients(double[][] M, double[] V) Calculates the polynomial coefficients as "double" values
double	FTN(double X) Returns the value of Y based on the specified value for X.
static CurveFit.Precision	GetDefaultPrecision(int pointSize) Gets the default precision type
double	getMaximumX() Gets the maximum "X" value
double	getMinimumX() Gets the minimum "X" value
static CurveFit.Precision	GetPrecisionByName(java.lang.String name, CurveFit.Precision dft) Parses the specified precision type string
double	getRangeX() Gets the range of X
boolean	isValid() Returns true if this CurveFit is valid
static boolean	isValid(CurveFit cf) Returns true if the specified CurveFit is valid
static void	main(java.lang.String[] argv)
static XYPair[]	ParseXYPair(java.lang.String xyListStr) Parse XY pair list.
static XYPair[]	ParseXYPair(java.lang.String xyListStr, int fromNdx) Parse XY pair list.
void	print(java.lang.String msg, double[][] M, double[] V) (Debug) Prints the matrix, values, and coefficients (for debug purposes only)
int	size() Returns the size of this CurveFit
java.lang.String	toString() Gets a String representation of this instance
java.lang.StringBuffer	toString(java.lang.StringBuffer sb, java.lang.String fmt) Gets a String representation of this instance

Methods inherited from class java.lang.Object

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

Field Detail

PROP_CurveFit_defaultPrecision

public static final java.lang.String PROP_CurveFit_defaultPrecision

See Also:

Constant Field Values

XY

protected XYPair[] XY

minXY

protected XYPair minXY

maxXY

protected XYPair maxXY

precision

protected CurveFit.Precision precision

dblCoeff

protected double[] dblCoeff

bigCoeff

protected java.math.BigDecimal[] bigCoeff

bdMathCtx

protected java.math.MathContext bdMathCtx

ARG_POINTS

public static final java.lang.String[] ARG_POINTS

ARG_VALUE

public static final java.lang.String[] ARG_VALUE

ARG_PRECISION

public static final java.lang.String[] ARG_PRECISION

Constructor Detail

CurveFit

protected CurveFit()

Protected constructor. Only allowed for subclasses

CurveFit

public CurveFit(CurveFit cf)

Clone constructor (deep copy)

CurveFit

public CurveFit(XYPair[] xy)

XYPair constructor

CurveFit

public CurveFit(XYPair[] xy,
                CurveFit.Precision P)

XYPair constructor

CurveFit

public CurveFit(java.lang.String xyListStr)

String constructor

CurveFit

public CurveFit(java.lang.String xyListStr,
                CurveFit.Precision P)

String constructor

Method Detail

GetDefaultPrecision

public static CurveFit.Precision GetDefaultPrecision(int pointSize)

Gets the default precision type

GetPrecisionByName

public static CurveFit.Precision GetPrecisionByName(java.lang.String name,
                                                    CurveFit.Precision dft)

Parses the specified precision type string

ParseXYPair

public static XYPair[] ParseXYPair(java.lang.String xyListStr)

Parse XY pair list. Leading/Trailing list characters (..) or [..], are optional. Does not reutrn null.

ParseXYPair

public static XYPair[] ParseXYPair(java.lang.String xyListStr,
                                   int fromNdx)

Parse XY pair list. Leading/Trailing list characters (..) or [..], are required. Does not reutrn null.

_CalculateCoefficients

protected static double[] _CalculateCoefficients(double[][] M,
                                                 double[] V)

Calculates the polynomial coefficients as "double" values

_CalculateCoefficients

protected static java.math.BigDecimal[] _CalculateCoefficients(java.math.BigDecimal[][] M,
                                                               java.math.BigDecimal[] V,
                                                               java.math.MathContext mc)

Calculates the polynomial coefficients as "BigDecimal" values

isValid

public boolean isValid()

Returns true if this CurveFit is valid

isValid

public static boolean isValid(CurveFit cf)

Returns true if the specified CurveFit is valid

getMinimumX

public double getMinimumX()

Gets the minimum "X" value

getMaximumX

public double getMaximumX()

Gets the maximum "X" value

getRangeX

public double getRangeX()

Gets the range of X

size

public int size()

Returns the size of this CurveFit

FTN

public double FTN(double X)

Returns the value of Y based on the specified value for X. This function is valid only over the range specified by the originally specified set of points. Values of X less than the minimum range will return the minimum value for Y, ans X value greater than the maximum range will return the maximum X value for Y.

toString

public java.lang.String toString()

Gets a String representation of this instance

Overrides:

toString in class java.lang.Object

toString

public java.lang.StringBuffer toString(java.lang.StringBuffer sb,
                                       java.lang.String fmt)

Gets a String representation of this instance

print

public void print(java.lang.String msg,
                  double[][] M,
                  double[] V)

(Debug) Prints the matrix, values, and coefficients (for debug purposes only)

main

public static void main(java.lang.String[] argv)