我需要建立Catia和Matlab之间的实时连接,以便我可以将参数值发送到Catia中的参数化设计,并读取一些其他参数和尺寸。
这是我的解决方案:
首先,我创建了VB NET (*.dll)文件。
这是我的解决方案:
首先,我创建了VB NET (*.dll)文件。
Public Class CatiaLinkLibrary
Dim CATIA As Object
Dim rootproduct
Sub StartCatia()
CATIA = CreateObject("CATIA.Application")
End Sub
Sub CloseCatia()
CATIA.Quit()
End Sub
Sub Visible(ByRef mode As Integer)
If mode = 1 Or mode = 0 Then
CATIA.Visible = mode
End If
End Sub
Sub OpenFile(ByRef filename As String)
CATIA.Documents.Open(filename)
rootproduct = CATIA.ActiveDocument.Product()
End Sub
Function GetMass() As Double
Return rootproduct.Analyze.Mass()
End Function
Function GetVolume() As Double
Return rootproduct.Analyze.Volume()
End Function
Function GetArea() As Double
Return rootproduct.Analyze.WetArea()
End Function
Function GetGravityCenter()
Dim gravitycenter(2)
rootproduct.Analyze.GetGravityCenter(gravitycenter)
GetGravityCenter = gravitycenter
End Function
Function GetIntertia()
Dim inertia(8)
rootproduct.Analyze.GetInertia(inertia)
GetIntertia = inertia
End Function
Sub ChangeParameter(ByRef parameterName As String, ByRef Value As Double)
Dim pd As Object
Dim part As Object
Dim parameters As Object
Dim length As Object
pd = CATIA.ActiveDocument
part = pd.Part
parameters = part.Parameters
length = parameters.Item(parameterName)
length.Value = Value
part.Update()
End Sub
Function GetParameter(ByRef parameterName As String) As Double
Dim pd As Object
Dim part As Object
Dim parameters As Object
Dim length As Object
pd = CATIA.ActiveDocument
part = pd.Part
parameters = part.Parameters
length = parameters.Item(parameterName)
Return length.Value()
End Function
Sub closeDoc(ByRef name As String)
Dim windows As Object
Dim window As Object
Dim doc As Object
windows = CATIA.Windows
window = windows.Item(name)
window.Activate()
window.Close()
doc = CATIA.ActiveDocument
doc.Close()
End Sub
Sub activeDoc(ByRef name As String)
Dim windows As Object
Dim window As Object
Dim doc As Object
windows = CATIA.Windows
window = windows.Item(name)
window.Activate()
doc = CATIA.ActiveDocument
End Sub
Function GetArea2() As Double
Dim pd As Object
Dim part As Object
Dim bodys As Object
Dim body As Object
Dim spabench As Object
Dim mymeas As Object
pd = CATIA.ActiveDocument
part = pd.Part
bodys = part.Bodies
body = bodys.Item("PartBody")
spabench = pd.GetWorkbench("SPAWorkbench")
mymeas = spabench.GetMeasurable(body)
Return mymeas.Area
End Function
End Class
然后,在Matlab中,我有一个类,它包装了这个*dll:
Matlab类:
classdef CatiaLink < handle
properties
catia;
end
methods
function obj = CatiaLink()
%modify this path to your .NET DLL
NET.addAssembly('C:\DOKTORAT\Modele Geometryczne\CatiaLinkLibrary\CatiaLinkLibrary\bin\Debug\CatiaLinkLibrary.dll');
obj.catia = CatiaLinkLibrary.CatiaLinkLibrary;
obj.catia.StartCatia;
disp('Catia started')
end
function Visible(obj,mode)
obj.catia.Visible(mode);
end
function Quit(obj)
obj.catia.CloseCatia;
end
function Open(obj,filename)
obj.catia.OpenFile(filename);
end
function mass = GetMass(obj)
mass = obj.catia.GetMass;
end
function vol = GetVolume(obj)
vol = obj.catia.GetVolume;
end
function area = GetArea(obj)
area = obj.catia.GetArea;
end
function cog = GetCenterOfGravity(obj)
tmp = obj.catia.GetGravityCenter;
cog = [tmp(1),tmp(2),tmp(3)];
end
function inertia = GetInertia(obj)
tmp = obj.catia.GetIntertia;
inertia = [tmp(1), tmp(2), tmp(3); ...
tmp(4), tmp(5), tmp(6); ...
tmp(7), tmp(8), tmp(9)];
end
function setParameter(obj, parameterName, Value)
obj.catia.ChangeParameter(parameterName, Value);
end
function val = getParameter(obj, parameterName)
val = obj.catia.GetParameter(parameterName);
end
function closeDoc(obj, name)
obj.catia.closeDoc(name);
end
function activeDoc(obj, name)
obj.catia.activeDoc(name);
end
function area = getArea2(obj)
area = obj.catia.GetArea2;
end
end
end
在我的程序中,我通过Catia = CatiaLink创建Catia对象。
然后,我使用它来设置和获取参数,使用次数达到了10000次甚至更多。
一切都很顺利,直到使用了几千次后,我遇到了错误:
Error using CatiaLink/setParameter (line 42)
Message: No more threads can be created in the system. (Exception from
HRESULT: 0x800700A4)
Source: mscorlib
HelpLink:
能有人解释一下正在发生什么?以及如何防止这种情况发生吗?