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source: branches/HeuristicLab.Hive_Milestone2/sources/HeuristicLab.Operators.Metaprogramming/3.2/DoubleRangeVariableInjector.cs @ 2830

Last change on this file since 2830 was 1530, checked in by gkronber, 16 years ago

Moved source files of plugins Hive ... Visualization.Test into version-specific sub-folders. #576

File size: 3.7 KB
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1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2008 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
4 *
5 * This file is part of HeuristicLab.
6 *
7 * HeuristicLab is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation, either version 3 of the License, or
10 * (at your option) any later version.
11 *
12 * HeuristicLab is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
19 */
20#endregion
21
22using System;
23using System.Collections.Generic;
24using System.Text;
25using HeuristicLab.Core;
26using HeuristicLab.Data;
27using HeuristicLab.Operators;
28
29namespace HeuristicLab.Operators.Metaprogramming {
30  /// <summary>
31  /// Injects a double variable into the current scope being in a specified range.
32  /// </summary>
33  public class DoubleRangeVariableInjector: OperatorBase {
34    /// <inheritdoc select="summary"/>
35    public override string Description {
36      get { return "TASK."; }
37    }
38
39    /// <summary>
40    /// Initializes a new instance of <see cref="DoubleRangeVariableInjector"/> with five variable infos
41    /// (<c>VariableInjectos</c>, <c>VariableName</c>, <c>Min</c>, <c>Max</c> and <c>StepSize</c>).
42    /// </summary>
43    public DoubleRangeVariableInjector()
44      : base() {
45      AddVariableInfo(new VariableInfo("VariableInjector", "The combined operator that should hold the generated variable injector", typeof(CombinedOperator), VariableKind.New));
46      AddVariableInfo(new VariableInfo("VariableName", "Name of the variable that should be injected", typeof(StringData), VariableKind.In));
47      AddVariableInfo(new VariableInfo("Min", "Minimal value of the injected variable", typeof(DoubleData), VariableKind.In));
48      AddVariableInfo(new VariableInfo("Max", "Maximal value of the injected variable", typeof(DoubleData), VariableKind.In));
49      AddVariableInfo(new VariableInfo("StepSize", "The difference of the value of the variable from one injector to the next", typeof(DoubleData), VariableKind.In));
50    }
51
52    /// <summary>
53    /// Injects a new double variable in the given <paramref name="scope"/>.
54    /// </summary>
55    /// <param name="scope">The current scope where to inject the variable.</param>
56    /// <returns><c>null</c>.</returns>
57    public override IOperation Apply(IScope scope) {
58      double min = GetVariableValue<DoubleData>("Min", scope, true).Data;
59      double max = GetVariableValue<DoubleData>("Max", scope, true).Data;
60      double stepSize = GetVariableValue<DoubleData>("StepSize", scope, true).Data;
61      string variableName = GetVariableValue<StringData>("VariableName", scope, true).Data;
62
63      int nSubScopes = (int)((max - min) / stepSize);
64      for(int i = 0; i < nSubScopes; i++) {
65        double value = min+i*stepSize;
66        Scope subScope = new Scope(variableName + "<-" + value);
67
68        CombinedOperator combOp = new CombinedOperator();
69        VariableInjector varInjector = new VariableInjector();
70        varInjector.AddVariable(new Variable(variableName, new DoubleData(value)));
71
72        combOp.OperatorGraph.AddOperator(varInjector);
73        combOp.OperatorGraph.InitialOperator = varInjector;
74
75        subScope.AddVariable(new Variable(scope.TranslateName("VariableInjector"), combOp));
76        scope.AddSubScope(subScope);
77      }
78      return null;
79    }
80  }
81}
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