public static void SetExifPositionOffset(this IMAGE32 image, POINT offset)
{
// value should be rational64u
var x = Rational.FromDouble(offset.X);
var y = Rational.FromDouble(offset.Y);
image.MetaData.ExifProfile.SetValue(SixLabors.ImageSharp.MetaData.Profiles.Exif.ExifTag.XPosition, x);
image.MetaData.ExifProfile.SetValue(SixLabors.ImageSharp.MetaData.Profiles.Exif.ExifTag.YPosition, y);
}
public void TestCast()
{
Rational f1 = 5;
Assert.AreEqual(5, f1.Numerator);
Assert.AreEqual(1, f1.Denominator);
Rational f2 = -5;
Assert.AreEqual(-5, f2.Numerator);
Assert.AreEqual(1, f2.Denominator);
var i1 = (int)new Rational(1, 2);
Assert.AreEqual(0, i1);
var i2 = (int)new Rational(3, 2);
Assert.AreEqual(1, i2);
var d1 = (double)new Rational(1, 2);
Assert.AreEqual(0.5, d1, 0.0000001);
var d2 = (double)new Rational(3, 2);
Assert.AreEqual(1.5, d2, 0.0000001);
var d3 = (double)new Rational(1, 3);
Assert.AreEqual(0.3333333333333, d3, 0.0000001);
var f3 = Rational.FromDouble(0.5, 8);
var f4 = Rational.FromDouble(1.0 / 3.0, 8);
Assert.AreEqual(1, f4.Numerator);
Assert.AreEqual(3, f4.Denominator);
var f5 = Rational.FromDouble(1.0 / 2.0, 8);
Assert.AreEqual(1, f5.Numerator);
Assert.AreEqual(2, f5.Denominator);
}
/// <summary>
/// Converts the given object to the type of this converter, using the specified context and culture information.
/// </summary>
/// <param name="context">An <see cref="T:System.ComponentModel.ITypeDescriptorContext" /> that provides a format context.</param>
/// <param name="culture">The <see cref="T:System.Globalization.CultureInfo" /> to use as the current culture.</param>
/// <param name="value">The <see cref="T:System.Object" /> to convert.</param>
/// <returns>An <see cref="T:System.Object" /> that represents the converted value.</returns>
/// <exception cref="System.ArgumentException">Inavlid value type: " + value.GetType().FullName - value</exception>
public override object ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, object value)
{
if (value == null)
{
return((Rational?)null);
}
if (value is Rational)
{
return((Rational)value);
}
if (value is string)
{
return(Rational.Parse((string)value, culture));
}
if (value is int)
{
return(new Rational((int)value));
}
if (value is double)
{
return(Rational.FromDouble((double)value));
}
if (value is long)
{
return((Rational)(long)value);
}
if (value is short)
{
return((Rational)(short)value);
}
if (value is uint)
{
return((Rational)(uint)value);
}
if (value is ulong)
{
return((Rational)(ulong)value);
}
if (value is ushort)
{
return((Rational)(ushort)value);
}
if (value is float)
{
return((Rational)(float)value);
}
if (value is byte)
{
return((Rational)(byte)value);
}
if (value is sbyte)
{
return((Rational)(sbyte)value);
}
if (value is bool)
{
return((bool)value ? Rational.One : Rational.Zero);
}
throw new ArgumentException("Inavlid value type: " + value.GetType().FullName, "value");
}
/// <summary>
/// Find the best rational that approximates the fraction
/// </summary>
/// <param name="factor">Divisor <1 1 scaled by 2^32.</param>
/// <returns></returns>
public static Rational FindBestRational(uint factor)
{
return(Rational.FromDouble(factor * Math.Pow(2.0, -32)));
}
public void Enter()
{
if (m_InErrorState || string.IsNullOrEmpty(m_Input))
{
return;
}
//-------------------
// Scan into Tokens
//-------------------
bool success = m_Scanner.Tokenize(m_Input);
if (!success)
{
Debug.Log("CalculatorScreen: Enter() Error in Scanner.");
Error();
return;
}
//-------------------
// Parse
//-------------------
success = ShuntingYard();
if (!success)
{
Debug.Log("CalculatorScreen: Enter() Error in ShuntingYard.");
Error();
return;
}
//-------------------
// Output Results
//-------------------
string resultStr = "";
// Format as Fraction?
if (m_InFracState)
{
if (m_HaveResultUnits)
{
resultStr = Units.FormatCalculator(Units.Type.Standard, Units.RulerUnit.Feet, m_Result);
}
else
{
resultStr = Rational.FromDouble(m_Result, 1000, 0.00001).ToString();
}
}
else
{
//if (m_HaveResultUnits) {
// resultStr = Units.FormatCalculator( Units.Type.Standard, Units.RulerUnit.Feet, m_Result, Units.Format.Decimal );
//} else {
resultStr = m_Result.ToString();
//}
}
m_EnteredText = m_Input + "\n\t" + resultStr + "\n";
m_Input = "";
RefreshDisplay();
Debug.Log("CalculatorScreen: Enter()");
}
