From 9f8ebe6a3747f839065488a8b04344ca68c7cb1e Mon Sep 17 00:00:00 2001
From: xLinka <Oliver.dunnington@outlook.com>
Date: Sat, 21 Oct 2023 10:49:51 +0100
Subject: [PATCH] Pressure Units

Pressure Units:

pascals
bar
atmospheres
torrs
---
 .../Quantities/Basic/Pressure.cs              | 131 ++++++++++++++++++
 1 file changed, 131 insertions(+)
 create mode 100644 Elements.Quantity/Quantities/Basic/Pressure.cs

diff --git a/Elements.Quantity/Quantities/Basic/Pressure.cs b/Elements.Quantity/Quantities/Basic/Pressure.cs
new file mode 100644
index 0000000..41d08f3
--- /dev/null
+++ b/Elements.Quantity/Quantities/Basic/Pressure.cs
@@ -0,0 +1,131 @@
+using System;
+
+namespace Elements.Quantity
+{
+    public readonly struct Pressure : IQuantitySI<Pressure>
+    {
+        #region ESSENTIALS
+
+        public readonly double BaseValue;
+
+        double IQuantity.BaseValue => BaseValue;
+
+        public Pressure(double baseValue = 0) : this() { BaseValue = baseValue; }
+
+        public bool Equals(Pressure other) { return BaseValue == other.BaseValue; }
+        public int CompareTo(Pressure other) { return BaseValue.CompareTo(other.BaseValue); }
+
+        #endregion
+
+        /* *********************************************** */
+
+        #region QUANTITY NAME DEFINITIONS
+
+        public string[] GetShortBaseNames() { return new string[] { "Pa" }; }
+        public string[] GetLongBaseNames()
+        { return new string[] { "pascals", "pascal" }; }
+
+        #endregion
+
+        /* *********************************************** */
+
+        #region SI UNIT DEFINITIONS
+
+        public double SIPower { get { return 1; } }
+
+        public IUnit[] GetCommonSIUnits()
+        {
+            return new IUnit[] {
+                SI<Pressure>.Pico,
+                SI<Pressure>.Nano,
+                SI<Pressure>.Micro,
+                SI<Pressure>.Milli,
+                SI<Pressure>.Centi,
+                SI<Pressure>.Deci,
+                SI<Pressure>.Kilo,
+                SI<Pressure>.Mega,
+                SI<Pressure>.Giga,
+                SI<Pressure>.Tera,
+                SI<Pressure>.Peta,
+                SI<Pressure>.Exa,
+                SI<Pressure>.Zetta,
+                SI<Pressure>.Yotta
+            };
+        }
+
+        public IUnit[] GetExcludedSIUnits()
+        {
+            return new IUnit[] {
+                SI<Pressure>.Quecto,
+                SI<Pressure>.Ronto,
+                SI<Pressure>.Yocto,
+                SI<Pressure>.Zepto,
+                SI<Pressure>.Atto,
+                SI<Pressure>.Femto,
+                SI<Pressure>.Deca,
+                SI<Pressure>.Hecto,
+                SI<Pressure>.Ronna,
+                SI<Pressure>.Quetta
+            };
+        }
+
+        #endregion
+
+        /* *********************************************** */
+
+        #region UNITS
+
+        public Unit<Pressure> DefaultUnit { get { return Pascal; } }
+
+        public static readonly Unit<Pressure> Pascal = new UnitSI<Pressure>(0, "Pa", "pascal");
+        public static readonly Unit<Pressure> Bar = new Unit<Pressure>(1e5,
+            new UnitGroup[] { UnitGroup.Common },
+            new string[] { " bar" }, new string[] { " bars" });
+        public static readonly Unit<Pressure> Atmosphere = new Unit<Pressure>(1.01325e5,
+            new UnitGroup[] { UnitGroup.Common },
+            new string[] { " atm" }, new string[] { " atmospheres" });
+        public static readonly Unit<Pressure> Torr = new Unit<Pressure>(1.01325e5 / 760,
+            new UnitGroup[] { UnitGroup.Common },
+            new string[] { " Torr" }, new string[] { " torrs" });
+
+        #endregion
+
+        /* *********************************************** */
+
+        #region OPERATORS
+
+        public Pressure New(double baseVal) { return new Pressure(baseVal); }
+
+        public Pressure Add(Pressure q) { return new Pressure(BaseValue + q.BaseValue); }
+        public Pressure Subtract(Pressure q) { return new Pressure(BaseValue - q.BaseValue); }
+
+        public Pressure Multiply(double n) { return new Pressure(BaseValue * n); }
+
+        public Pressure Divide(double n) { return new Pressure(BaseValue / n); }
+        public Ratio Divide(Pressure q) { return new Ratio(BaseValue / q.BaseValue); }
+
+        public static Pressure Parse(string str, Unit<Pressure> defaultUnit = null) { return Unit<Pressure>.Parse(str, defaultUnit); }
+        public static bool TryParse(string str, out Pressure q, Unit<Pressure> defaultUnit = null) { return Unit<Pressure>.TryParse(str, out q, defaultUnit); }
+
+        public static Pressure operator +(Pressure a, Pressure b) { return a.Add(b); }
+        public static Pressure operator -(Pressure a, Pressure b) { return a.Subtract(b); }
+        public static Pressure operator *(Pressure a, double n) { return a.Multiply(n); }
+        public static Pressure operator /(Pressure a, double n) { return a.Divide(n); }
+        public static Ratio operator /(Pressure a, Pressure b) { return a.Divide(b); }
+        public static Pressure operator -(Pressure a) { return a.Multiply(-1); }
+
+        #endregion
+
+        /* *********************************************** */
+
+        #region CONVERSIONS
+
+        // ...any necessary conversions
+
+        #endregion
+
+        /* *********************************************** */
+
+        public override string ToString() => this.FormatAuto();
+    }
+}