Add operators extensions to TemperatureGradient and remove duplicates…

… from LapseRate

I have removed the TemperatureDelta/Length = LapseRate operator since it
would collide with the same overload that equals TemperatureGradient. This is
a breaking change, but it was decided that we can do it anyways since
it's easy to replace and you will get a compiler error.

UnitsNet.Tests/CustomCode/LapseRateTests.cs

@@ -38,13 +38,6 @@ public void TemperatureDeltaDividedByLapseRateEqualsLength()
  Assert.Equal(length, Length.FromKilometers(10));
  }
 
- [Fact]
- public void TemperatureDeltaDividedByLengthEqualsLapseRate()
- {
- LapseRate lapseRate = TemperatureDelta.FromDegreesCelsius(50) / Length.FromKilometers(10);
- Assert.Equal(lapseRate, LapseRate.FromDegreesCelciusPerKilometer(5));
- }
-
  [Fact]
  public void LengthMultipliedByLapseRateEqualsTemperatureDelta()
  {

UnitsNet.Tests/CustomCode/TemperatureGradientTests.cs

@@ -33,5 +33,33 @@ public class TemperatureGradientTests : TemperatureGradientTestsBase
  protected override double DegreesFahrenheitPerFootInOneKelvinPerMeter => 0.54864;
 
  protected override double KelvinsPerMeterInOneKelvinPerMeter => 1;
+
+ [Fact]
+ public void TemperatureDeltaDividedByTemperatureGradientEqualsLength()
+ {
+ Length length = TemperatureDelta.FromDegreesCelsius(50) / TemperatureGradient.FromDegreesCelciusPerKilometer(5);
+ Assert.Equal(length, Length.FromKilometers(10));
+ }
+
+ [Fact]
+ public void TemperatureDeltaDividedByLengthEqualsTemperatureGradient()
+ {
+ TemperatureGradient lapseRate = TemperatureDelta.FromDegreesCelsius(50) / Length.FromKilometers(10);
+ Assert.Equal(lapseRate, TemperatureGradient.FromDegreesCelciusPerKilometer(5));
+ }
+
+ [Fact]
+ public void LengthMultipliedByTemperatureGradientEqualsTemperatureDelta()
+ {
+ TemperatureDelta temperatureDelta = Length.FromKilometers(10) * TemperatureGradient.FromDegreesCelciusPerKilometer(5);
+ Assert.Equal(temperatureDelta, TemperatureDelta.FromDegreesCelsius(50));
+ }
+
+ [Fact]
+ public void TemperatureGradientMultipliedByLengthEqualsTemperatureDelta()
+ {
+ TemperatureDelta temperatureDelta = TemperatureGradient.FromDegreesCelciusPerKilometer(5) * Length.FromKilometers(10);
+ Assert.Equal(temperatureDelta, TemperatureDelta.FromDegreesCelsius(50));
+ }
  }
 }

UnitsNet/CustomCode/Quantities/TemperatureDelta.extra.cs

@@ -5,10 +5,10 @@ namespace UnitsNet
 {
  public partial struct TemperatureDelta
  {
- /// <summary>Get <see cref="LapseRate"/> from <see cref="TemperatureDelta"/> divided by <see cref="Length"/>.</summary>
- public static LapseRate operator /(TemperatureDelta left, Length right)
+ /// <summary>Get <see cref="TemperatureGradient"/> from <see cref="TemperatureDelta"/> divided by <see cref="Length"/>.</summary>
+ public static TemperatureGradient operator /(TemperatureDelta left, Length right)
  {
- return LapseRate.FromDegreesCelciusPerKilometer(left.DegreesCelsius / right.Kilometers);
+ return TemperatureGradient.FromKelvinsPerMeter(left.Kelvins / right.Meters);
  }
 
  /// <summary>Get <see cref="SpecificEnergy"/> from <see cref="SpecificEntropy"/> times <see cref="TemperatureDelta"/>.</summary>

UnitsNet/CustomCode/Quantities/TemperatureGradient.extra.cs

@@ -0,0 +1,23 @@
+// Licensed under MIT No Attribution, see LICENSE file at the root.
+// Copyright 2013 Andreas Gullberg Larsen (andreas.larsen84@gmail.com). Maintained at https://github.com/angularsen/UnitsNet.
+
+namespace UnitsNet
+{
+ public partial struct TemperatureGradient
+ {
+ /// <summary>Get <see cref="Length"/> from <see cref="TemperatureDelta"/> divided by <see cref="TemperatureGradient"/>.</summary>
+ public static Length operator /(TemperatureDelta left, TemperatureGradient right)
+ {
+ return Length.FromKilometers(left.Kelvins / right.DegreesCelciusPerKilometer);
+ }
+
+ /// <summary>Get <see cref="TemperatureDelta"/> from <see cref="Length"/> times <see cref="TemperatureGradient"/>.</summary>
+ public static TemperatureDelta operator *(Length left, TemperatureGradient right) => right * left;
+
+ /// <summary>Get <see cref="TemperatureDelta"/> from <see cref="TemperatureGradient"/> times <see cref="Length"/>.</summary>
+ public static TemperatureDelta operator *(TemperatureGradient left, Length right)
+ {
+ return TemperatureDelta.FromDegreesCelsius(left.DegreesCelciusPerKilometer * right.Kilometers);
+ }
+ }
+}