Structure_Engine: Fix bug for the Mass method (for Panels) (#3256)

BHoM · Jan 18, 2024 · 86f447c · 86f447c
2 parents a5674ef + 756e65c
commit 86f447c
Show file tree

Hide file tree

Showing 2 changed files with 7 additions and 2 deletions.
diff --git a/.ci/Datasets/Structure_Engine/Query/Mass.json b/.ci/Datasets/Structure_Engine/Query/Mass.json
diff --git a/Structure_Engine/Query/Mass.cs b/Structure_Engine/Query/Mass.cs
@@ -56,7 +56,12 @@ public static double Mass(this Bar bar)
         [Output("mass", "The mass of the Panel.", typeof(Mass))]
         public static double Mass(this Panel panel)
         {
-            return panel.IsNull() ? 0 : panel.Area() * panel.Property.IMassPerArea();
+            if (panel.IsNull())
+                return 0;
+
+            double volume = panel.SolidVolume();
+            MaterialComposition comp = panel.MaterialComposition();
+            return comp.Materials.Zip(comp.Ratios, (m, r) => m.Density * r * volume).Sum();
         }
 
         /***************************************************/