How to get the unused expressions?

[anthonyo]

Hi
I want to get the unused expressions in the part by open api, but has no found the function, who can help me?
thanks

 

[MBrookey]

All you have to do is go to tool==>expression=> and under listed expressions change it to unused expressions.. This will show you all unused expressions.

Hope thats what you wanted to know!

 

[basenxuser]

Hi,

To check in a display part the following code would help.But need to add few more checks for identifying interpart exps, geometric exps ....

Try executing this as a journal

Imports System
Imports System.Windows.Forms
Imports System.Collections
Imports NXOpen
Imports NXOpen.Assemblies
Imports NXOpenUI
Imports NXOpen.Utilities
Imports NXOpen.UF


Public Module query

Public UFS As UFSession = UFS.getufsession
Public NTS As Session = NTS.getsession

Sub Main()

Try

' / Get the displayed part /
Dim dispPart As Part = NTS.Parts.Display

' / Retrieve part expressions /
Dim partExps As ExpressionCollection = dispPart.Expressions

Dim unusedExps As New ArrayList

Dim t_expn As Expression

' / Iterate through the expressions in the part /
For Each t_expn In partExps

If (t_expn.GetOwningFeature Is Nothing) Then

' / Add the unused expression into arraylist /
unusedExps.Add(t_expn)

' / Direct the information to window /
writeToWindow(t_expn.Name + " : " + t_expn.Value.ToString)

End If

Next

Catch ex As Exception

MessageBox.Show("Retrieving expression not sucessful", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error)

End Try

End Sub

Sub writeToWindow(ByVal strContent As String)

Try

' / Check for the status of the listing window /
If Not (NTS.ListingWindow.IsOpen) Then

NTS.ListingWindow.Open()

End If

NTS.ListingWindow.WriteLine(strContent)

Catch ex As Exception

MessageBox.Show("Unable to write to listing output device", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error)

End Try

End Sub

 

[jackley]

I get two compile errors when cutting/pasting that code

Line 11: 'Module' statement must end with a matching 'End Module'
Line 33: 'GetOwningFeature' is not a member of 'NXOpen.Expression'



Justin Ackley
Designer

 

[anthonyo]

I has found that some expressions link with sketch and drawings,not only features. how to retrieves these expressions?

 

[basenxuser]

Hi anthonyo : Kindly change the "t_expn.GetOwningFeature" to "t_expn.GetUsingFeatures", this would even include sketch and all registered features

Hi Jackley : I am guessing that you are using NX4.0.0, if you can try my code with NX4.0.3.3. the compilation and non-reference errors may dissolve.

 

[anthonyo]

Hi HariharanB: I use the UF_MODL_ask_features_of_exp() to retrieves the unused exps and the UF_SKET_ask_exps_of_sketch() to retrieve the used exps in display part, also need to identifying some other exps.