org.xtce.math

Class SplineCalibration

java.lang.Object

org.xtce.math.SplineCalibration

All Implemented Interfaces:

Calibration

public class SplineCalibration
extends Object
implements Calibration

Class to apply a calibration specified in an XTCE document in the form of a Spline Calibrator.

Author:

David Overeem

Constructor Summary

Constructors

Constructor and Description
SplineCalibration(org.omg.space.xtce.CalibratorType.SplineCalibrator splineElement) Constructs a Calibration object based on the SplineCalibrator element in the XTCE document.

Method Summary

Modifier and Type	Method and Description
Number	calibrate(Number xValue) Apply this Spline Calibrator, otherwise known as a "piecewise function", to an uncalibrated value.
Number	uncalibrate(Number yValue) Apply this Spline Calibrator to an already calibrated value.

Methods inherited from class java.lang.Object

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

Constructor Detail

SplineCalibration

public SplineCalibration(org.omg.space.xtce.CalibratorType.SplineCalibrator splineElement)

Constructs a Calibration object based on the SplineCalibrator element in the XTCE document.

Parameters:

splineElement - SplineCalibrator containing the data.

Method Detail

calibrate

public Number calibrate(Number xValue)
                 throws XTCEDatabaseException

Apply this Spline Calibrator, otherwise known as a "piecewise function", to an uncalibrated value. The Spline Point pairs in XTCE are expected to be in sequential order from lowest to highest raw value. The first two points are mandatory and subsequent points are made by adding one new point and dropping the previous low point. This assures that the evaluation is continuous. It is also assumed that they are in order from lowest raw value to highest raw value.

Specified by:

calibrate in interface Calibration

Parameters:

xValue - Number containing the uncalibrated value.

Returns:

Number containing the calibrated value after the calibration.

Throws:

XTCEDatabaseException - when the Spline Calibrator has unsupported features, the calibrated value is unbounded, or has infinite slope between points.

uncalibrate

public Number uncalibrate(Number yValue)
                   throws XTCEDatabaseException

Apply this Spline Calibrator to an already calibrated value. The Spline Point pairs in XTCE are expected to be in sequential order from lowest to highest raw value. The first two points are mandatory and subsequent points are made by adding one new point and dropping the previous low point. This assures that the evaluation is continuous. It is also assumed that they are in order from lowest raw value to highest raw value.

Specified by:

uncalibrate in interface Calibration

Parameters:

yValue - Number containing a calibrated value.

Returns:

Number containing the uncalibrated value after the reverse calibration operation.

Throws:

XTCEDatabaseException - when the Spline Calibrator has unsupported features, the calibrated value is unbounded, or has infinite slope between points.