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Add custom floats formatting to prevent scientific notation

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This commit is contained in:
Wojtek Figat
2022-05-18 22:29:31 +02:00
parent 4a2e8d0a69
commit 8c971cd11e
6 changed files with 164 additions and 27 deletions
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94
Source/Editor/Utilities/Utils.cs
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@@ -1,6 +1,7 @@
// Copyright (c) 2012-2022 Wojciech Figat. All rights reserved.
using System;
using System.Globalization;
using System.Collections.Generic;
using System.IO;
using System.Reflection;
@@ -911,5 +912,98 @@ namespace FlaxEditor.Utilities
}
return StringUtils.GetPathWithoutExtension(path);
}
/// <summary>
/// Formats the floating point value (double precision) into the readable text representation.
/// </summary>
/// <param name="value">The value.</param>
/// <returns>The text representation.</returns>
public static string FormatFloat(float value)
{
if (float.IsPositiveInfinity(value) || value == float.MaxValue)
return "Infinity";
if (float.IsNegativeInfinity(value) || value == float.MinValue)
return "-Infinity";
string str = value.ToString("r", CultureInfo.InvariantCulture);
return FormatFloat(str, value < 0);
}
/// <summary>
/// Formats the floating point value (single precision) into the readable text representation.
/// </summary>
/// <param name="value">The value.</param>
/// <returns>The text representation.</returns>
public static string FormatFloat(double value)
{
if (double.IsPositiveInfinity(value) || value == double.MaxValue)
return "Infinity";
if (double.IsNegativeInfinity(value) || value == double.MinValue)
return "-Infinity";
string str = value.ToString("r", CultureInfo.InvariantCulture);
return FormatFloat(str, value < 0);
}
internal static string FormatFloat(string str, bool isNegative)
{
// Reference: https://stackoverflow.com/questions/1546113/double-to-string-conversion-without-scientific-notation
int x = str.IndexOf('E');
if (x < 0)
return str;
int x1 = x + 1;
string s, exp = str.Substring(x1, str.Length - x1);
int e = int.Parse(exp);
int numDecimals = 0;
if (isNegative)
{
int len = x - 3;
if (e >= 0)
{
if (len > 0)
{
s = str.Substring(0, 2) + str.Substring(3, len);
numDecimals = len;
}
else
s = str.Substring(0, 2);
}
else
{
if (len > 0)
{
s = str.Substring(1, 1) + str.Substring(3, len);
numDecimals = len;
}
else
s = str.Substring(1, 1);
}
}
else
{
int len = x - 2;
if (len > 0)
{
s = str[0] + str.Substring(2, len);
numDecimals = len;
}
else
s = str[0].ToString();
}
if (e >= 0)
{
e -= numDecimals;
string z = new string('0', e);
s = s + z;
}
else
{
e = -e - 1;
string z = new string('0', e);
if (isNegative)
s = "-0." + z + s;
else
s = "0." + z + s;
}
return s;
}
}
}