Changeset 15473 for branches/2817-BinPackingSpeedup/HeuristicLab.Problems.BinPacking/3.3/3D/Evaluators/PackingRatioEvaluator.cs

Timestamp:

11/15/17 12:30:13 (6 years ago)

Author:

rhanghof

Message:

#2817:
-Added unit tests
-Refactoring of bp 3D

File:

• branches/2817-BinPackingSpeedup/HeuristicLab.Problems.BinPacking/3.3/3D/Evaluators/PackingRatioEvaluator.cs (modified) (2 diffs)

branches/2817-BinPackingSpeedup/HeuristicLab.Problems.BinPacking/3.3/3D/Evaluators/PackingRatioEvaluator.cs

@@ -26 +26 @@
 using HeuristicLab.Common;
 
-namespace HeuristicLab.Problems.BinPacking3D {
+namespace HeuristicLab.Problems.BinPacking3D.Evaluators {
   // NOTE: same implementation as for 2d problem
   [Item("Packing-Ratio Evaluator (3d)", "Calculates the ratio between packed and unpacked space.")]
@@ -43 +43 @@
 
     #region IEvaluator Members
+
+    /// <summary>
+    /// Calculates the packing ratio for the solution.
+    /// The packing ration is calculated as followed:
+    /// Falkenauer:1996 - A Hybrid Grouping Genetic Algorithm for Bin Packing
+    /// fBPP = (SUM[i=1..N](Fi / C)^k)/N
+    /// N.......the number of bins used in the solution,
+    /// Fi......the sum of sizes of the items in the bin i (the fill of the bin),
+    /// C.......the bin capacity and
+    /// k.......a constant, k>1.
+    /// </summary>
+    /// <param name="solution"></param>
+    /// <returns>Returns the calculated packing ratio of the bins in the given solution.</returns>
     public double Evaluate(Solution solution) {
       return CalculatePackingRatio(solution);