703 lines
33 KiB
C#
703 lines
33 KiB
C#
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using System;
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using System.Collections.Generic;
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using System.Text;
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namespace DatabaseExport
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{
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public class LinearizationFormula
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{
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private bool _bIsValid;
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public bool IsValid() { return _bIsValid; }
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public void MarkValid(bool bValid)
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{
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_bIsValid = bValid;
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}
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public enum Styles
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{
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IRTraccManual,
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IRTraccDiagnosticsZero,
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IRTraccZeroMMmV,
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IRTraccAverageOverTime,
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Polynomial,
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IRTraccCalFactor
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}
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// public enum SLICEWareStyles
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// {
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// Manual,
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// DiagnosticZeroMMmV,
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// ZeroMMmV,
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// AverageOverTime,
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// Polynomial
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// }
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// // Translation
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// public SLICEWareStyles SLICEWareStyle
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// {
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// get { return (SLICEWareStyles)_style; }
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// set { _style = (Styles)value; }
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// }
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public Styles Style { get; set; } = Styles.IRTraccDiagnosticsZero;
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public double PolynomialSensitivity { get; set; } = 1D;
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public double LinearizationExponent { get; set; } = 1D;
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// THIS IS MM/V, (UI has already been updated, we need to update the variable name)
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public double MMPerV { get; set; }
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public double MVAt0MM { get; set; }
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public double Slope { get; set; }
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public double Intercept { get; set; }
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public double CalibrationFactor { get; set; }
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public double ZeroPositionIntercept { get; set; }
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public LinearizationFormula()
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{
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ZeroPositionIntercept = 0D;
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CalibrationFactor = 0D;
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Intercept = 0D;
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_coefficients = new List<double>(new double[] { 0, 0, 0, 0 });
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_exponents = new List<double>(new double[] { 0, 1, 2, 3 });
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}
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public LinearizationFormula(LinearizationFormula copy)
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{
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UsemVOverVForPolys = copy.UsemVOverVForPolys;
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_bIsValid = copy._bIsValid;
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_coefficients = new List<double>(copy._coefficients.ToArray());
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_exponents = new List<double>(copy._exponents.ToArray());
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Intercept = copy.Intercept;
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LinearizationExponent = copy.LinearizationExponent;
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MMPerV = copy.MMPerV;
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MVAt0MM = copy.MVAt0MM;
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Slope = copy.Slope;
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Style = copy.Style;
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_coefficients = new List<double>(copy._coefficients);
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_exponents = new List<double>(copy._exponents);
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PolynomialSensitivity = copy.PolynomialSensitivity;
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ZeroPositionIntercept = copy.ZeroPositionIntercept;
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CalibrationFactor = copy.CalibrationFactor;
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}
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// public double GetCoefficient(double exponent)
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// {
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// for (int i = 0; i < _exponents.Count && i < _coefficients.Count; i++)
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// {
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// if (_exponents[i] == exponent) { return _coefficients[i]; }
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// }
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// return 0;
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// }
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// public void SetCoefficient(double exponent, double coefficient)
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// {
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// for (int i = 0; i < _exponents.Count && i < _coefficients.Count; i++)
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// {
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// if (_exponents[i] == exponent) { _coefficients[i] = coefficient; return; }
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// }
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// }
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// public double GetLinearizedValue(double input, double excitation)
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// {
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// if (Style != Styles.Polynomial && input <= 0)
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// {
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// //ir-tracc should never be < 0, however we may get readings less than zero due to
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// //noise and other factors, treat these as positive near to zero
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// input = .001;
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// }
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// //first linearize
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// input /= 1000D;//assume input is in mV and we want it in Volts
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// input = Math.Pow(input, LinearizationExponent);
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// switch (Style)
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// {
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// case Styles.IRTraccDiagnosticsZero:
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// return GetEUDiagnosticsZero(input);
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// case Styles.IRTraccManual:
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// return GetEUIRTraccManual(input);
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// case Styles.IRTraccZeroMMmV:
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// return GetEUZeroMMmV(input);
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// case Styles.IRTraccAverageOverTime:
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// return GetEUAverageOverTime(input);
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// case Styles.Polynomial:
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// return GetEUPolynomial(input, excitation);
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// case Styles.IRTraccCalFactor:
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// return GetEUIRTraccCalFactor(input);
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// default:
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// throw new NotSupportedException("unknown format: " + Style.ToString());
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// }
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// }
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// private double GetEUIRTraccCalFactor(double volts)
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// {
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// return volts * CalibrationFactor + ZeroPositionIntercept;
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// }
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// private double GetEUIRTraccManual(double volts)
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// {
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// return (volts - Intercept) / Slope;
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// }
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public bool UsemVOverVForPolys { get; set; } = true;
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// private double GetEUZeroMMmV(double volts)
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// {
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// double input = MVAt0MM / 1000D;
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// input = Math.Pow(input, LinearizationExponent);
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// if (double.IsNaN(input) || double.IsNegativeInfinity(input) || double.IsPositiveInfinity(input))
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// {
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// return volts * MMPerV;
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// }
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// else { return (volts * MMPerV - MMPerV * input); }
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// }
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private List<double> _coefficients = new List<double>();
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private List<double> _exponents = new List<double>();
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// private double GetEUPolynomial(double volts, double excitation)
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// {
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// //per J2517
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// //3.4 Use of the Calibration Coefficients
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// //The potentiometer assembly should be re-installed in the dummy without any mechanical adjustment of the
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// //potentiometer. Prior to a crash test, the original zero offset level must be preserved by either not zeroing the
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// //potentiometer (by signal conditioning or post-processing) or the amount that was zeroed must be added during postprocessing.
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// //During the test the absolute voltage output time history should be recorded. This voltage signal is then
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// //converted to engineering units by:
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// //1. Convert voltage signal to mV/V at the sensor. This is the sensor reading S.
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// //2. Convert the sensor reading S to displacement D by using the equation:
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// //D = A*S^3 + B*S^2 + C*S + M (Eq. 2)
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// //where:
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// //D is the displacement relative to the thorax design position in mm
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// //S is the sensor output reading in mV/V
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// //A, B, C, and M are the calibration coefficients
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// //NOTE: Make sure to use sufficient significant digits on all coefficients to assure accuracy of the conversion to
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// //engineering units. It is recommended to use 5 significant digits (example 0.000012345).
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// //double mV = volts * 1000D;
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// //double gain = 1D;
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// //mV = mV / (gain * excitation);
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// //if (0 != PolynomialSensitivity && 1!= PolynomialSensitivity) { mV /= PolynomialSensitivity; }
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// //double eu = 0D;
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// //for (int i = 0; i < _coefficients.Count && i < _exponents.Count; i++)
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// //{
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// // eu += _coefficients[i] * Math.Pow(mV, _exponents[i]);
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// //}
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// //return eu;
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// //CHANGED FOR GM TESTING
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// if (0 != PolynomialSensitivity && 1 != PolynomialSensitivity)
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// {
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// volts /= PolynomialSensitivity;
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// }
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// double voltsOverV = 0D;
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// if (UsemVOverVForPolys)
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// {
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// //convert to mV first
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// voltsOverV = (volts * 1000D) / excitation;
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// }
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// else
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// {
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// //used by GM
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// voltsOverV = volts / excitation;
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// }
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// double eu = 0;
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// for (int i = 0; i < _coefficients.Count && i < _exponents.Count; i++)
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// {
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// if (_exponents[i] != 0)
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// {
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// eu += _coefficients[i] * Math.Pow(voltsOverV, _exponents[i]);
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// }
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// else
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// {
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// eu += _coefficients[i];
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// }
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// }
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// return eu;
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// }
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// /// <summary>
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// /// MvAt0MM set at diagnostics
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// /// </summary>
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// /// <param name="volts"></param>
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// /// <returns></returns>
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// private double GetEUDiagnosticsZero(double volts)
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// {
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// //double input = MVAt0MM/1000D;
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// //input = System.Math.Pow(input,LinearizationExponent);
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// double input = double.NaN;
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// if (double.IsNaN(input) || double.IsPositiveInfinity(input) || double.IsNegativeInfinity(input))
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// {
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// return volts * MMPerV;
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// }
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// else
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// {
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// return volts * MMPerV - MMPerV * input;
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// }
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// }
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// /// <summary>
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// /// MVAt0MM set by diagnostics and then later on at
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// /// Average Over Time
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// /// </summary>
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// /// <param name="volts"></param>
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// /// <returns></returns>
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// private double GetEUAverageOverTime(double volts)
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// {
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// //double input = MVAt0MM / 1000D;
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// //input = System.Math.Pow(input, LinearizationExponent);
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// double input = double.NaN;
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// if (double.IsNaN(input) || double.IsNegativeInfinity(input) || double.IsPositiveInfinity(input))
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// {
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// return volts * MMPerV;
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// }
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// else
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// {
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// return volts * MMPerV - MMPerV * input;
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// }
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// }
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// public string ToSLICEWareSerializeString()
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// {
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// if (!_bIsValid) { return ""; }
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// StringBuilder sb = new StringBuilder();
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// sb.AppendFormat("{0}_", Style.ToString());
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// switch (Style)
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// {
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// case Styles.IRTraccDiagnosticsZero:
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// sb.Append(ToIRTraccDiagnosticZeroString());
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// break;
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// case Styles.IRTraccManual:
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// sb.Append(ToIRTraccManualString());
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// break;
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// case Styles.IRTraccZeroMMmV:
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// sb.Append(ToIRTraccZeroMMmVString());
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// break;
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// case Styles.IRTraccAverageOverTime:
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// sb.Append(ToIRTraccAverageOverTimeString());
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// break;
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// case Styles.Polynomial:
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// sb.Append(ToSLICEWarePolynomialString());
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// break;
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// case Styles.IRTraccCalFactor:
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// throw new NotSupportedException("CalFactor not supported in SLICEWare");
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// default:
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// throw new NotSupportedException("unknown type: " + Style.ToString());
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// }
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// return sb.ToString();
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// }
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/// <summary>
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/// serializes to a string of the format "c0xe0 c1xe1...cnxen"
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/// this will allow us arbitrary length polynomials and fractional exponents.
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/// </summary>
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/// <returns></returns>
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public string ToSerializeString()
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{
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if (!_bIsValid) { return ""; }
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var sb = new StringBuilder();
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sb.AppendFormat("{0}_", Style.ToString());
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switch (Style)
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{
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case Styles.IRTraccDiagnosticsZero:
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sb.Append(ToIRTraccDiagnosticZeroString());
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break;
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case Styles.IRTraccManual:
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sb.Append(ToIRTraccManualString());
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break;
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case Styles.IRTraccZeroMMmV:
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sb.Append(ToIRTraccZeroMMmVString());
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break;
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case Styles.IRTraccAverageOverTime:
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sb.Append(ToIRTraccAverageOverTimeString());
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break;
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case Styles.Polynomial:
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sb.Append(ToPolynomialString());
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break;
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case Styles.IRTraccCalFactor:
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sb.Append(ToIRTraccCalFactorString());
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break;
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default:
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throw new NotSupportedException("unknown type: " + Style.ToString());
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}
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return sb.ToString();
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}
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public string ToIRTraccDiagnosticZeroString()
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{
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return string.Format("{0}x{1}", MMPerV.ToString(System.Globalization.CultureInfo.InvariantCulture), LinearizationExponent
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.ToString(System.Globalization.CultureInfo.InvariantCulture));
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}
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public string ToIRTraccCalFactorString()
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{
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return string.Format("{0}x{1}x{2}", CalibrationFactor.ToString(System.Globalization.CultureInfo.InvariantCulture), LinearizationExponent.ToString(System.Globalization.CultureInfo.InvariantCulture),
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ZeroPositionIntercept.ToString(System.Globalization.CultureInfo.InvariantCulture));
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}
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public void FromIRTraccCalFactorString(string s, System.Globalization.CultureInfo culture)
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{
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var tokens = s.Split('x');
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if (tokens.Length < 3) { throw new NotSupportedException("Invalid CalFactor format: " + s); }
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CalibrationFactor = double.Parse(tokens[0], culture);
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LinearizationExponent = double.Parse(tokens[1], culture);
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ZeroPositionIntercept = double.Parse(tokens[2], culture);
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}
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public void FromIRTraccDiagnosticZeroString(string s, System.Globalization.CultureInfo culture)
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{
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var tokens = s.Split('x');
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|
|
if (tokens.Length < 2) { throw new NotSupportedException("Invalid DiagnosticsZero format: " + s); }
|
|||
|
|
MMPerV = double.Parse(tokens[0], culture);
|
|||
|
|
LinearizationExponent = double.Parse(tokens[1], culture);
|
|||
|
|
}
|
|||
|
|
public string ToIRTraccManualString()
|
|||
|
|
{
|
|||
|
|
return string.Format("{0}x{1}x{2}", Slope.ToString(System.Globalization.CultureInfo.InvariantCulture), Intercept.ToString
|
|||
|
|
(System.Globalization.CultureInfo.InvariantCulture), LinearizationExponent.ToString(
|
|||
|
|
System.Globalization.CultureInfo.InvariantCulture));
|
|||
|
|
}
|
|||
|
|
public void FromIRTraccManualString(string s, System.Globalization.CultureInfo culture)
|
|||
|
|
{
|
|||
|
|
var tokens = s.Split('x');
|
|||
|
|
if (tokens.Length < 3) { throw new NotSupportedException("Invalid IRTraccManual format: " + s); }
|
|||
|
|
Slope = double.Parse(tokens[0], culture);
|
|||
|
|
Intercept = double.Parse(tokens[1], culture);
|
|||
|
|
LinearizationExponent = double.Parse(tokens[2], culture);
|
|||
|
|
}
|
|||
|
|
public string ToIRTraccZeroMMmVString()
|
|||
|
|
{
|
|||
|
|
return string.Format("{0}x{1}x{2}", MMPerV.ToString(System.Globalization.CultureInfo.InvariantCulture),
|
|||
|
|
MVAt0MM.ToString(System.Globalization.CultureInfo.InvariantCulture),
|
|||
|
|
LinearizationExponent.ToString(System.Globalization.CultureInfo.InvariantCulture));
|
|||
|
|
}
|
|||
|
|
// public string ToSLICEWarePolynomialString()
|
|||
|
|
// {
|
|||
|
|
// //SLICEWare is the reverse order of our DataPRO Database
|
|||
|
|
// StringBuilder sb = new StringBuilder();
|
|||
|
|
// for (int i = _exponents.Count - 1; i >= 0; i--)
|
|||
|
|
// {
|
|||
|
|
// if (i != _exponents.Count - 1) { sb.Append(","); }
|
|||
|
|
// sb.AppendFormat("{0}x{1}", _coefficients[i].ToString(System.Globalization.CultureInfo.InvariantCulture),
|
|||
|
|
// _exponents[i].ToString(System.Globalization.CultureInfo.InvariantCulture));
|
|||
|
|
// }
|
|||
|
|
|
|||
|
|
// sb.AppendFormat(",S={0}", PolynomialSensitivity.ToString(System.Globalization.CultureInfo.InvariantCulture));
|
|||
|
|
// return sb.ToString();
|
|||
|
|
// }
|
|||
|
|
public string ToPolynomialString()
|
|||
|
|
{
|
|||
|
|
var sb = new StringBuilder();
|
|||
|
|
for (var i = 0; i < _coefficients.Count && i < _exponents.Count; i++)
|
|||
|
|
{
|
|||
|
|
if (i > 0) { sb.Append(","); }
|
|||
|
|
sb.AppendFormat("{0}x{1}", _coefficients[i].ToString(System.Globalization.CultureInfo.InvariantCulture),
|
|||
|
|
_exponents[i].ToString(System.Globalization.CultureInfo.InvariantCulture));
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
sb.AppendFormat(",S={0},mV={1}",
|
|||
|
|
PolynomialSensitivity.ToString(System.Globalization.CultureInfo.InvariantCulture),
|
|||
|
|
UsemVOverVForPolys.ToString(System.Globalization.CultureInfo.InvariantCulture));
|
|||
|
|
|
|||
|
|
return sb.ToString();
|
|||
|
|
}
|
|||
|
|
// public double[] PolynomialCoefficients
|
|||
|
|
// {
|
|||
|
|
// get { return _coefficients.ToArray(); }
|
|||
|
|
// set { _coefficients = new List<double>(value); }
|
|||
|
|
// }
|
|||
|
|
// public double[] PolynomialExponents
|
|||
|
|
// {
|
|||
|
|
// get { return _exponents.ToArray(); }
|
|||
|
|
// set { _exponents = new List<double>(value); }
|
|||
|
|
// }
|
|||
|
|
public string ToIRTraccAverageOverTimeString()
|
|||
|
|
{
|
|||
|
|
return string.Format("{0}x{1}", MMPerV.ToString(System.Globalization.CultureInfo.InvariantCulture),
|
|||
|
|
LinearizationExponent.ToString(System.Globalization.CultureInfo.InvariantCulture));
|
|||
|
|
}
|
|||
|
|
public void FromIRTraccAverageOverTimeString(string s, System.Globalization.CultureInfo culture)
|
|||
|
|
{
|
|||
|
|
var tokens = s.Split('x');
|
|||
|
|
if (tokens.Length < 2) { throw new NotSupportedException("Invalid IRTRaccAverageOverTime format: " + s); }
|
|||
|
|
MMPerV = double.Parse(tokens[0], culture);
|
|||
|
|
LinearizationExponent = double.Parse(tokens[1], culture);
|
|||
|
|
}
|
|||
|
|
public void FromIRTraccZeroMMmVString(string s, System.Globalization.CultureInfo culture)
|
|||
|
|
{
|
|||
|
|
var tokens = s.Split('x');
|
|||
|
|
if (tokens.Length < 3) { throw new NotSupportedException("Invalid IRTraccZeroMMmV format: " + s); }
|
|||
|
|
MMPerV = double.Parse(tokens[0], culture);
|
|||
|
|
MVAt0MM = double.Parse(tokens[1], culture);
|
|||
|
|
LinearizationExponent = double.Parse(tokens[2], culture);
|
|||
|
|
}
|
|||
|
|
public void FromPolynomialString(string s, System.Globalization.CultureInfo culture)
|
|||
|
|
{
|
|||
|
|
_coefficients.Clear();
|
|||
|
|
_exponents.Clear();
|
|||
|
|
|
|||
|
|
var tokens = s.Split(',');
|
|||
|
|
foreach (var t in tokens)
|
|||
|
|
{
|
|||
|
|
var subtokens = t.Split('x');
|
|||
|
|
if (2 == subtokens.Length)
|
|||
|
|
{
|
|||
|
|
double d;
|
|||
|
|
if (double.TryParse(subtokens[0], System.Globalization.NumberStyles.Float, culture, out d))
|
|||
|
|
{
|
|||
|
|
_coefficients.Add(d);
|
|||
|
|
_exponents.Add(double.Parse(subtokens[1], culture));
|
|||
|
|
}
|
|||
|
|
else
|
|||
|
|
{
|
|||
|
|
PolynomialSensitivity = double.Parse(subtokens[1], culture);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
else
|
|||
|
|
{
|
|||
|
|
subtokens = t.Split('=');
|
|||
|
|
if (subtokens.Length == 2)
|
|||
|
|
{
|
|||
|
|
switch (subtokens[0])
|
|||
|
|
{
|
|||
|
|
case "S":
|
|||
|
|
PolynomialSensitivity = double.Parse(subtokens[1], culture);
|
|||
|
|
break;
|
|||
|
|
case "mV":
|
|||
|
|
UsemVOverVForPolys = Convert.ToBoolean(subtokens[1], culture);
|
|||
|
|
break;
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
public void FromSerializeString(string s, System.Globalization.CultureInfo culture)
|
|||
|
|
{
|
|||
|
|
if (string.IsNullOrEmpty(s)) { _bIsValid = false; return; }
|
|||
|
|
if (s.Equals("1") || s.Equals("0") || s.Equals("1 ")) { _bIsValid = false; return; }
|
|||
|
|
|
|||
|
|
var tokens = s.Split('_');
|
|||
|
|
if (tokens.Length < 2) { throw new NotSupportedException("unsupported Linearization Formula Format"); }
|
|||
|
|
var style = (Styles)Enum.Parse(typeof(Styles), tokens[0], true);
|
|||
|
|
Style = style;
|
|||
|
|
switch (Style)
|
|||
|
|
{
|
|||
|
|
case Styles.IRTraccDiagnosticsZero:
|
|||
|
|
FromIRTraccDiagnosticZeroString(tokens[1], culture);
|
|||
|
|
_bIsValid = true;
|
|||
|
|
break;
|
|||
|
|
case Styles.IRTraccManual:
|
|||
|
|
FromIRTraccManualString(tokens[1], culture);
|
|||
|
|
_bIsValid = true;
|
|||
|
|
break;
|
|||
|
|
case Styles.IRTraccZeroMMmV:
|
|||
|
|
FromIRTraccZeroMMmVString(tokens[1], culture);
|
|||
|
|
_bIsValid = true;
|
|||
|
|
break;
|
|||
|
|
case Styles.Polynomial:
|
|||
|
|
FromPolynomialString(tokens[1], culture);
|
|||
|
|
_bIsValid = true;
|
|||
|
|
break;
|
|||
|
|
case Styles.IRTraccAverageOverTime:
|
|||
|
|
FromIRTraccAverageOverTimeString(tokens[1], culture);
|
|||
|
|
_bIsValid = true;
|
|||
|
|
break;
|
|||
|
|
case Styles.IRTraccCalFactor:
|
|||
|
|
FromIRTraccCalFactorString(tokens[1], culture);
|
|||
|
|
_bIsValid = true;
|
|||
|
|
break;
|
|||
|
|
default:
|
|||
|
|
throw new NotSupportedException("Unknown format: " + Style.ToString());
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
public void FromSerializeString(string s)
|
|||
|
|
{
|
|||
|
|
FromSerializeString(s, System.Globalization.CultureInfo.InvariantCulture);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// public void FromTDCSerializeString()
|
|||
|
|
// {
|
|||
|
|
// _bIsValid = true;
|
|||
|
|
// }
|
|||
|
|
|
|||
|
|
// /// <summary>
|
|||
|
|
// /// Will return a display string for a nonlinear calibration based on N4 formating
|
|||
|
|
// /// </summary>
|
|||
|
|
// public string ToDisplayString()
|
|||
|
|
// {
|
|||
|
|
// return ToDisplayString("N4");
|
|||
|
|
// }
|
|||
|
|
// /// <summary>
|
|||
|
|
// /// Will return a display string for a nonlinear calibration based on 1st paramater formating string
|
|||
|
|
// /// </summary>
|
|||
|
|
// /// <param name="nonlinearFormat"></param>
|
|||
|
|
// /// <returns></returns>
|
|||
|
|
// public string ToDisplayString(string nonlinearFormat)
|
|||
|
|
// {
|
|||
|
|
// if (string.IsNullOrEmpty(nonlinearFormat)) { nonlinearFormat = "N4"; }
|
|||
|
|
// switch (Style)
|
|||
|
|
// {
|
|||
|
|
// case Styles.Polynomial:
|
|||
|
|
// {
|
|||
|
|
// return ToPolynomial(nonlinearFormat);
|
|||
|
|
// }
|
|||
|
|
// case Styles.IRTraccZeroMMmV:
|
|||
|
|
// {
|
|||
|
|
// return string.Format("mV = {0:n4}, {1:n4}*(V^{2})", MVAt0MM, MMPerV, ToSuperScript(LinearizationExponent.ToString(nonlinearFormat)));
|
|||
|
|
// }
|
|||
|
|
// case Styles.IRTraccManual:
|
|||
|
|
// {
|
|||
|
|
// return string.Format("((V^{0})-{1:n4})/{2:n4}", ToSuperScript(LinearizationExponent.ToString(nonlinearFormat)), Intercept, Slope);
|
|||
|
|
// }
|
|||
|
|
// case Styles.IRTraccDiagnosticsZero:
|
|||
|
|
// {
|
|||
|
|
// return string.Format("{0:n4}*(V^{1})", MMPerV, ToSuperScript(LinearizationExponent.ToString(nonlinearFormat)));
|
|||
|
|
// }
|
|||
|
|
// case Styles.IRTraccAverageOverTime:
|
|||
|
|
// {
|
|||
|
|
// return string.Format("{0:n4}*(V^{1})", MMPerV, ToSuperScript(LinearizationExponent.ToString(nonlinearFormat)));
|
|||
|
|
// }
|
|||
|
|
// case Styles.IRTraccCalFactor:
|
|||
|
|
// {
|
|||
|
|
// return string.Format("{2:n4}+{1:n4}*(V^{0})", ToSuperScript(LinearizationExponent.ToString(nonlinearFormat)), CalibrationFactor, ZeroPositionIntercept);
|
|||
|
|
// }
|
|||
|
|
// default:
|
|||
|
|
// return string.Empty;
|
|||
|
|
// }
|
|||
|
|
// }
|
|||
|
|
// private string ToPolynomial(string nonlinearFormat)
|
|||
|
|
// {
|
|||
|
|
// if (string.IsNullOrEmpty(nonlinearFormat)) { nonlinearFormat = "N4"; }
|
|||
|
|
|
|||
|
|
// StringBuilder sb = new StringBuilder();
|
|||
|
|
|
|||
|
|
// int termNumber = PolynomialCoefficients.Length - 1;
|
|||
|
|
// foreach (var x in PolynomialCoefficients)
|
|||
|
|
// {
|
|||
|
|
// if (PolynomialCoefficients[termNumber] != 0)
|
|||
|
|
// {
|
|||
|
|
// double coeff = PolynomialCoefficients[termNumber];
|
|||
|
|
|
|||
|
|
// // Let the appended math symbol handle sign unless we're the first term.
|
|||
|
|
// if (termNumber != PolynomialCoefficients.Length - 1)
|
|||
|
|
// {
|
|||
|
|
// coeff = Math.Abs(coeff);
|
|||
|
|
// }
|
|||
|
|
// sb.Append(coeff.ToString(nonlinearFormat));
|
|||
|
|
// if (PolynomialExponents[termNumber] != 0)
|
|||
|
|
// {
|
|||
|
|
// sb.Append("x");
|
|||
|
|
// if (PolynomialExponents[termNumber] != 1)
|
|||
|
|
// {
|
|||
|
|
// sb.Append(ToSuperScript(PolynomialExponents[termNumber].ToString("N0")));
|
|||
|
|
// }
|
|||
|
|
// }
|
|||
|
|
// if (termNumber > 0)
|
|||
|
|
// {
|
|||
|
|
// // Coerricients are Displayed in absolute value. We need to combine the sign with the addition symbol
|
|||
|
|
// sb.Append(PolynomialCoefficients[termNumber - 1] > 0 ? " + " : " - ");
|
|||
|
|
// }
|
|||
|
|
// }
|
|||
|
|
// termNumber--;
|
|||
|
|
// }
|
|||
|
|
|
|||
|
|
// return sb.ToString();
|
|||
|
|
// }
|
|||
|
|
// private string ToSuperScript(string source)
|
|||
|
|
// {
|
|||
|
|
// StringBuilder superScript = new StringBuilder();
|
|||
|
|
|
|||
|
|
// foreach (char c in source)
|
|||
|
|
// {
|
|||
|
|
// switch (c)
|
|||
|
|
// {
|
|||
|
|
// case '-':
|
|||
|
|
// superScript.Append('\u207B');
|
|||
|
|
// break;
|
|||
|
|
// case '.':
|
|||
|
|
// superScript.Append('\u00B7');
|
|||
|
|
// break;
|
|||
|
|
// case '1':
|
|||
|
|
// superScript.Append('\u00B9');
|
|||
|
|
// break;
|
|||
|
|
// case '2':
|
|||
|
|
// superScript.Append('\u00B2');
|
|||
|
|
// break;
|
|||
|
|
// case '3':
|
|||
|
|
// superScript.Append('\u00B3');
|
|||
|
|
// break;
|
|||
|
|
// case '4':
|
|||
|
|
// superScript.Append('\u2074');
|
|||
|
|
// break;
|
|||
|
|
// case '5':
|
|||
|
|
// superScript.Append('\u2075');
|
|||
|
|
// break;
|
|||
|
|
// case '6':
|
|||
|
|
// superScript.Append('\u2076');
|
|||
|
|
// break;
|
|||
|
|
// case '7':
|
|||
|
|
// superScript.Append('\u2077');
|
|||
|
|
// break;
|
|||
|
|
// case '8':
|
|||
|
|
// superScript.Append('\u2078');
|
|||
|
|
// break;
|
|||
|
|
// case '9':
|
|||
|
|
// superScript.Append('\u2079');
|
|||
|
|
// break;
|
|||
|
|
// case '0':
|
|||
|
|
// superScript.Append('\u2070');
|
|||
|
|
// break;
|
|||
|
|
// case '\'':
|
|||
|
|
// superScript.Append('\u02C8');
|
|||
|
|
// break;
|
|||
|
|
// case ',':
|
|||
|
|
// superScript.Append('\u22C5'); // there is no unicode superscript comma. this comes close
|
|||
|
|
// break;
|
|||
|
|
// case '\u00A0':
|
|||
|
|
// superScript.Append('\u2009'); // unicode 'thin' space
|
|||
|
|
// break;
|
|||
|
|
// default:
|
|||
|
|
// superScript.Append('\u207F');
|
|||
|
|
// break;
|
|||
|
|
// }
|
|||
|
|
// }
|
|||
|
|
|
|||
|
|
// return superScript.ToString();
|
|||
|
|
// }
|
|||
|
|
// /*
|
|||
|
|
// * we are given an equation in the form of y = ax^1 + b, except x and y are backwards for us (y=V where we'd prefer X was voltage, so we switch it)
|
|||
|
|
// * y/a - b/a = x, and then switch y and x, (1/a)x^1 -(b/a)x^0 = y
|
|||
|
|
// * now we want to get the coefficient of the first equation, which is "a", we get this by taking the inverse
|
|||
|
|
// * we get b on the other hand by taking -1 * (b/a)*a. if we have the "coefficient", we have a
|
|||
|
|
// */
|
|||
|
|
// /*
|
|||
|
|
// public double GetIRTraccCoefficient()
|
|||
|
|
// {
|
|||
|
|
// foreach (Factor f in Factors)
|
|||
|
|
// {
|
|||
|
|
// if (f.Exponent == 1D) { return System.Math.Pow(f.Coefficient, -1); }
|
|||
|
|
// }
|
|||
|
|
// return 1D; //0 doesn't make sense for ir
|
|||
|
|
// }
|
|||
|
|
// public double GetIRTraccConstant()
|
|||
|
|
// {
|
|||
|
|
// foreach (Factor f in Factors)
|
|||
|
|
// {
|
|||
|
|
// if (f.Exponent == 0D) { return -1D * GetIRTraccCoefficient() * f.Coefficient; }
|
|||
|
|
// }
|
|||
|
|
// return 0D;
|
|||
|
|
// }
|
|||
|
|
// public void SetIRTraccFactor(double coefficient, double constant)
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// {
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// if (0 == coefficient)
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// {
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// //well this doesn't make any sense ...
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// coefficient = 1;
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// }
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// Factors = new Factor[]
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// {
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// new Factor(1/coefficient,1),
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// new Factor(-constant/coefficient,0),
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// };
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// }*/
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}
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}
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