🐛Unit fix.

Author: Ted-Jin-Lab

Tests/TedToolkit.Console/Absorptance.cs

@@ -1,5 +1,6 @@
 namespace TedToolkit.Quantities;
 
+[QuantityDisplayUnit<AbsorbedDoseUnit>(AbsorbedDoseUnit.Centigray)]
 [QuantityImplicitFromValueType]
 [QuantityImplicitToValueType]
 [QuantityOperator<AbsorbedDose, AbsorbedDose, double>(Operator.Divide)]

src/analyzers/TedToolkit.Quantities.Analyzer/QuantitiesAttributeGenerator.cs

@@ -20,6 +20,7 @@ public readonly record struct QuantityUnit(Quantity Quantity, string Unit)
         var unit = q.Units
             .Select(u => data.Units[u])
             .OrderBy(u => u.DistanceToDefault)
+            .ThenByDescending(u => u.ApplicableSystem)
             .First().GetUnitName(data.Units.Values);
         return new QuantityUnit(q, unit);
     });

src/analyzers/TedToolkit.Quantities.Analyzer/QuantityStructGenerator.cs

@@ -998,6 +998,7 @@ private ExpressionSyntax GetSystemUnitName()
         {
             var memberName = allUnits
                 .OrderBy(u => u.DistanceToDefault)
+                .ThenByDescending(u => u.ApplicableSystem)
                 .First().GetUnitName(data.Units.Values);
             return FromMember(quantity.UnitName, memberName);
         }
@@ -1019,6 +1020,7 @@ private ExpressionSyntax GetSystemUnitName()
                     return true;
                 })
                 .OrderBy(u => u.DistanceToDefault)
+                .ThenByDescending(u => u.ApplicableSystem)
                 .FirstOrDefault();
 
             if (!string.IsNullOrEmpty(choiceUnit.Name))

src/analyzers/TedToolkit.Quantities.Analyzer/UnitSystem.cs

@@ -26,6 +26,7 @@ public Unit GetUnit(string key)
 
         return quantityUnits
             .OrderBy(i => i.DistanceToDefault)
+            .ThenByDescending(i => i.ApplicableSystem)
             .First();
     }
 }

src/libraries/TedToolkit.Quantities.Data/Unit.cs

@@ -36,7 +36,6 @@ static string MakeSafe(string value)
 
     [JsonIgnore] public Conversion Conversion => new(EDecimal.FromString(Multiplier), EDecimal.FromString(Offset));
 
-    private const double Weight = 1e4;
 
     [JsonIgnore]
     public double DistanceToDefault
@@ -48,7 +47,7 @@ public double DistanceToDefault
             {
                 if (double.TryParse(Multiplier, out var value))
                 {
-                    result += Math.Abs(value - 1) * Weight;
+                    result += Math.Abs(value - 1);
                 }
                 else
                 {
@@ -60,15 +59,15 @@ public double DistanceToDefault
             {
                 if (double.TryParse(Offset, out var value))
                 {
-                    result += Math.Abs(value) * Weight;
+                    result += Math.Abs(value);
                 }
                 else
                 {
                     return double.MaxValue;
                 }
             }
 
-            return result - ApplicableSystem;
+            return result;
         }
     }
 }