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Create Simulation Gravity Feature Example (VB.NET)

This example shows how to create a simulation gravity feature in a motion study.

' Preconditions:  
' 1. Verify that the specified model document exists.
' 2. In SOLIDWORKS, verify that View > MotionManager is selected.
' 3. In the IDE, right-click the project name in the Project Explorer, 
'    click Add Reference, browse to install_dir\api\redist\CLR2, and select 
'    SolidWorks.Interop.swmotionstudy.dll.
' 4. Click OK.
' 5. Open an Immediate window.
' Postconditions: 
' 1. Adds Gravity to the MotionManager design tree on the Motion Study 1 tab.
' 2. Inspect the Immediate window.
' NOTE: Because the model is used elsewhere,
' do not save changes when closing it.

Imports SolidWorks.Interop.sldworks
Imports SolidWorks.Interop.swconst
Imports SolidWorks.Interop.swmotionstudy
Imports System.Runtime.InteropServices
Imports System
Imports System.Diagnostics
Partial Class SolidWorksMacro
    Dim swModel As ModelDoc2
    Dim swModelDocExt As ModelDocExtension
    Dim swMotionMgr As MotionStudyManager
    Dim swMotionStudy1 As MotionStudy
    Dim swGravityFeat As SimulationGravityFeatureData
    Dim boolstatus As Boolean
    Dim swFeat As Feature
    Dim longstatus As Integer, longwarnings As Integer
    Sub main()
        swModel = swApp.OpenDoc6("C:\Users\Public\Documents\SOLIDWORKS\SOLIDWORKS 2018\samples\tutorial\api\beam_boltconnection.sldasm", 2, 0, "", longstatus, longwarnings)
        swApp.ActivateDoc2("beam_boltconnection"False, longstatus)
        swModel = swApp.ActiveDoc
        swModelDocExt = swModel.Extension

        swMotionMgr = swModelDocExt.GetMotionStudyManager()
        swMotionStudy1 = swMotionMgr.GetMotionStudy("Motion Study 1")
        If (swMotionStudy1 Is NothingThen
            Debug.Print("Motion Study 1 is not available")
        End If

swMotionStudy1.StudyType = swMotionStudyType_e.swMotionStudyTypePhysicalSimulation
        ' Activate Motion Study 1
        ' Define feature data
        swGravityFeat = swMotionStudy1.CreateDefinition(swFeatureNameID_e.swFmAEMGravity)
        If swGravityFeat Is Nothing Then
            Debug.Print("Creation of feature data object failed")
        End If
        swGravityFeat.ReverseDirection = False
        swGravityFeat.Axis = 0
        swGravityFeat.Strength = 12
        ' Create feature
        swFeat = swMotionStudy1.CreateFeature(swGravityFeat)
        If swFeat Is Nothing Then
            Debug.Print("Creation of feature failed")
            Debug.Print("Name of the feature added: " & swFeat.Name)
        End If
    End Sub
    ''' <summary>
    ''' The SldWorks swApp variable is pre-assigned for you.
    ''' </summary>
    Public swApp As SldWorks
End Class


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