MapWindow5/src/MW5.Shared/NumericHelper.cs at develop · MapWindow/MapWindow5 · GitHub

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using System;

using System.Globalization;

using System.IO;

namespace MW5.Shared

{

/// <summary>

/// Class for performinc nummeric actions

/// </summary>

public static class NumericHelper

{

private const double Tolerance = 1e-10;

public static string ToInvariantString(this double value)

{

return value.ToString(CultureInfo.InvariantCulture);

}

public static bool ParseDoubleInvariant(this string s, out double result)

{

double val;

return double.TryParse(s, NumberStyles.Any, CultureInfo.InvariantCulture, out result);

}

/// <summary>Check if a value is nummeric</summary>

/// <param name = "value">The value to check.</param>

/// <param name = "style">The NumberStyle</param>

/// <returns>Status indicating if value is nummeric</returns>

public static bool IsNumeric(string value, NumberStyles style)

{

double result;

return double.TryParse(value, style, CultureInfo.CurrentCulture, out result);

}

/// <summary>

/// Returns true if to values are equal within tolerance.

/// </summary>

/// <param name="val1">The val1.</param>

/// <param name="val2">The val2.</param>

/// <returns></returns>

public static bool Equal(double val1, double val2)

{

return Equal(val1, val2, Tolerance);

}

/// <summary>

/// Returns true if to values are equal within tolerance.

/// </summary>

/// <param name="val1">The val1.</param>

/// <param name="val2">The val2.</param>

/// <param name="tolerance">Tolerance.</param>

/// <returns></returns>

public static bool Equal(double val1, double val2, double tolerance)

{

return Math.Abs(val2 - val1) <= tolerance;

}

public static double Parse(string value, double defaultValue)

{

double result;

return double.TryParse(value, out result) ? result : defaultValue;

}

public static string FormatFileSize(double size)

{

string[] sizes = { "B", "KB", "MB", "GB" };

int order = 0;

while (size >= 1024 && order + 1 < sizes.Length)

{

order++;

size = size / 1024;

}

// Adjust the format string to your preferences. For example "{0:0.#}{1}" would

// show a single decimal place, and no space.

return String.Format("{0:0.##} {1}", size, sizes[order]);

}

MapWindow5/src/MW5.Shared/NumericHelper.cs at develop · MapWindow/MapWindow5 · GitHub

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