Experts,

I am performing interference detection with API on SOLIDWORKS 2016 with the code implemented with VB.NET. I move a component then I detect the interference.

I have a problem on the increment: For now, I choose the increment as the minimum edge of the bounding box of each moving component,

but this method does not generate accurate results.

I thought about thickness analysis implementation so I take as an increment the minimum thickness within the moving component so I guarantee that my component can collide with each eventual component in its direction and here is the code :

    Private Function Min_Thikness_Calculation(ByRef swmodel3 As ModelDoc2) As Double
        Dim swModel As ModelDoc2
        Dim utAddIn As gtcocswUtilities
        Dim utThicknessAnalysis As gtcocswThicknessAnalysis
        Dim nOption As gtResultOptions_e
        Dim nResolution As gttckResolutionOptions_e
        Dim strReportName As String
        Dim lStatus As Long
        Dim bAddToBinder As Boolean
        Dim bSaveToEdwg As Boolean
        Dim bOverWrite As Boolean
        Dim dThicknessLimit As Double
        Dim errorCode As Long
        Dim name As String
        '-------------------------'
        swModel = iSwApp.ActivateDoc3(name, False, swRebuildOnActivation_e.swRebuildActiveDoc, longstatus)
        '-------------------------'
        ' Load the SOLIDWORKS Utilities add-in
        utAddIn = iSwApp.GetAddInObject("Utilities.UtilitiesApp")
        ' Get the thickness analysis tool
        utThicknessAnalysis = utAddIn.ThicknessAnalysis
        ' Initialize the thickness analysis tool
        lStatus = utThicknessAnalysis.Init()
        'If Not errorCode = gtError_e.gtNOErr Then
        ' Save the report
        nOption = gtResultOptions_e.gtResultSaveReport
        ' Use high resolution
        nResolution = gttckResolutionOptions_e.gttckHighResolution
        ' Save the report to this folder
        strReportName = "c:\test\report"
        ' Add the report to the Design Binder
        bAddToBinder = True
        ' Do not save the report to eDrawings
        bSaveToEdwg = False
        ' Allow the report to be overwritten, both in Design Binder and
        ' on disk, so that you can rerun the analysis
        bOverWrite = True
        ' Set the thickness threshold
        dThicknessLimit = 0.5
        ' Run the analysis
        lStatus = utThicknessAnalysis.RunThinAnalysis2(dThicknessLimit, nResolution, nOption, strReportName, bAddToBinder, bSaveToEdwg, bOverWrite)
        ' Check the result
            ' Close the thickness analysis tool
            lStatus = utThicknessAnalysis.Close()
            ' Release
            utThicknessAnalysis = Nothing
            utAddIn = Nothing
        
        Dim Min As Double = CDbl(utThicknessAnalysis.GetMinTckOnAnalArea(lStatus))
        ' Close the thickness analysis tool
        lStatus = utThicknessAnalysis.Close()
        ' Release
        utThicknessAnalysis = Nothing
        utAddIn = Nothing
        ' Done
        Min_Thikness_Calculation = Min * 1000
        iSwApp.CloseDoc(swmodel3.GetTitle)
    Exit Function
    End Function

But This code do not give me the increment that I want:

For example for this part I want the thickness (A) as an increment but the result of the minimum thickness by the previous code is :  0.0264368104020076 mm and in the picture as you see there is a thickness equal to 0.6147 mm.

Can anyone help to choose the right increment whether by thickness analysis implementation or an other method and thank you in advance.