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' Optimization Classes
' Copyright 2009-2014 Daniel Wagner O. de Medeiros
'
' This file is part of DWSIM.
'
' DWSIM is free software: you can redistribute it and/or modify
' it under the terms of the GNU General Public License as published by
' the Free Software Foundation, either version 3 of the License, or
' (at your option) any later version.
'
' DWSIM is distributed in the hope that it will be useful,
' but WITHOUT ANY WARRANTY; without even the implied warranty of
' MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
' GNU General Public License for more details.
'
' You should have received a copy of the GNU General Public License
' along with DWSIM. If not, see <http://www.gnu.org/licenses/>.
Imports System.Xml
Imports System.IO
Imports System.Runtime.Serialization.Formatters.Binary
Imports System.Runtime.Serialization
Imports Ciloci.Flee
Imports System.Linq
Namespace Flowsheet.Optimization
<System.Serializable()> Public Class OptimizationCase
Implements ICloneable, Interfaces.ICustomXMLSerialization
Public name As String = ""
Public description As String = ""
<Xml.Serialization.XmlIgnore()> Public results As ArrayList
Public stats As String = ""
Public solvm As SolvingMethod = SolvingMethod.AL_BRENT
Public maxits As Integer = 100
Public tolerance As Double = 0.000001
Public epsX As Double = 0.001
Public epsF As Double = 0.001
Public epsG As Double = 0.001
Public epsilon As Double = 0.001
Public barriermultiplier As Double = 0.0001
Public numdevscheme = 2
Public boundvariables As Boolean = False
Public objfunctype As OPTObjectiveFunctionType = OPTObjectiveFunctionType.Variable
Public type As OPTType = OPTType.Minimization
Public expression As String = ""
<System.NonSerialized()> Public exbase As IGenericExpression(Of Double)
<System.NonSerialized()> Public econtext As ExpressionContext
Public variables As New Dictionary(Of String, OPTVariable)
Public Enum SolvingMethod
AL_BRENT = 0
AL_BRENT_B = 1
AL_LBFGS = 2
AL_LBFGS_B = 3
DN_TRUNCATED_NEWTON = 4
DN_NELDERMEAD_SIMPLEX = 5
DN_LBFGS = 6
DN_TRUNCATED_NEWTON_B = 7
DN_NELDERMEAD_SIMPLEX_B = 8
DN_LBFGS_B = 9
IPOPT = 10
End Enum
Sub New()
variables = New Dictionary(Of String, OPTVariable)
results = New ArrayList()
End Sub
Public Function Clone() As Object Implements System.ICloneable.Clone
Return ObjectCopy(Me)
End Function
Function ObjectCopy(ByVal obj As Object) As Object
Dim objMemStream As New MemoryStream(50000)
Dim objBinaryFormatter As New BinaryFormatter(Nothing, New StreamingContext(StreamingContextStates.Clone))
objBinaryFormatter.Serialize(objMemStream, obj)
objMemStream.Seek(0, SeekOrigin.Begin)
ObjectCopy = objBinaryFormatter.Deserialize(objMemStream)
objMemStream.Close()
End Function
Public Function LoadData(data As System.Collections.Generic.List(Of System.Xml.Linq.XElement)) As Boolean Implements Interfaces.ICustomXMLSerialization.LoadData
XMLSerializer.XMLSerializer.Deserialize(Me, data, True)
For Each xel As XElement In (From xel2 As XElement In data Select xel2 Where xel2.Name = "Variables").SingleOrDefault.Elements.ToList
Dim optvar As New OPTVariable
optvar.LoadData(xel.Elements.ToList)
variables.Add(xel.@Key, optvar)
Next
Return True
End Function
Public Function SaveData() As System.Collections.Generic.List(Of System.Xml.Linq.XElement) Implements Interfaces.ICustomXMLSerialization.SaveData
Dim elements As List(Of XElement) = XMLSerializer.XMLSerializer.Serialize(Me, True)
With elements
.Add(New XElement("Variables"))
For Each kvp As KeyValuePair(Of String, OPTVariable) In variables
.Item(.Count - 1).Add(New XElement("Variable", New XAttribute("Key", kvp.Key), kvp.Value.SaveData.ToArray))
Next
End With
Return elements
End Function
End Class
<System.Serializable()> Public Class OPTVariable
Implements Interfaces.ICustomXMLSerialization
Public objectID As String = ""
Public objectTAG As String = ""
Public propID As String = ""
Public unit As String = ""
Public name As String = ""
Public id As String = ""
Public lowerlimit As Nullable(Of Double)
Public upperlimit As Nullable(Of Double)
Public currentvalue As Double = 0.0#
Public initialvalue As Double = 0.0#
Public type As OPTVariableType = OPTVariableType.Independent
Public boundtype As BoundType = boundtype.None
Sub New()
End Sub
Public Function LoadData(data As System.Collections.Generic.List(Of System.Xml.Linq.XElement)) As Boolean Implements Interfaces.ICustomXMLSerialization.LoadData
XMLSerializer.XMLSerializer.Deserialize(Me, data, True)
Return True
End Function
Public Function SaveData() As System.Collections.Generic.List(Of System.Xml.Linq.XElement) Implements Interfaces.ICustomXMLSerialization.SaveData
Return XMLSerializer.XMLSerializer.Serialize(Me, True)
End Function
End Class
Public Enum OPTVariableType
Dependent = 0
Independent = 1
Auxiliary = 2
Constraint = 3
End Enum
Public Enum OPTObjectiveFunctionType
Variable = 0
Expression = 1
End Enum
Public Enum OPTType
Minimization = 0
Maximization = 1
End Enum
Public Enum BoundType
None = 0
Lower = 1
Upper = 3
LowerAndUpper = 2
End Enum
End Namespace
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