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Create Equation-driven Curve Example (VB.NET)

This example shows how to create and modify an equation-driven curve.

'---------------------------------------------------------------
' Preconditions:
' 1. Open a new part document.
' 2. Open the Immediate window.
'
' Postconditions:
' 1. Creates a 2D sketch and creates an equation-driven spline of
'    a sine curve.
' 2. Examine the graphics area, then Press F5.
' 3. Edits the curve and creates a cosine curve.
' 4. Reduces the number of points in the spline.
' 5. Examine the Immediate window and graphics area.
'----------------------------------------------------------------

Imports SolidWorks.Interop.sldworks
Imports SolidWorks.Interop.swconst
Imports System.Runtime.InteropServices
Imports System
Imports System.Diagnostics

Partial Class SolidWorksMacro

    
Dim swModel As ModelDoc2
    
Dim swExt As ModelDocExtension
    
Dim swSelMgr As SelectionMgr
    
Dim boolstatus As Boolean
    Dim y As String
    Dim r1 As Double
    Dim r2 As Double
    Dim rad As Boolean
    Dim ang As Double
    Dim xOff As Double, yOff As Double
    Dim LockStart As Boolean, LockEnd As Boolean

    Sub main()

        swModel = swApp.ActiveDoc
        swExt = swModel.Extension
        swSelMgr = swModel.SelectionManager

        boolstatus = swExt.SelectByID2(
"Front Plane", "PLANE", 0, 0, 0, False, 0, Nothing, 0)
        swModel.SketchManager.InsertSketch(
True)
        swModel.ClearSelection2(
True)

        
Dim skSegment As SketchSegment
        skSegment = swModel.SketchManager.CreateEquationSpline2(
"", "sin(x)", "", "0", "6.28", False, 0, 0, 0, True, True)
        swModel.ViewZoomtofit2()

        
Stop
       
' Examine graphics area, then press F5

        Dim skSpline As SketchSpline
        skSpline = skSegment
        
Call skSpline.GetEquationParameters(y, r1, r2, rad, ang, xOff, yOff, LockStart, LockEnd)

        Debug.Print(
"y: " & y)
        Debug.Print(
"range start: " & r1)
        Debug.Print(
"range end: " & r2)
        Debug.Print(
"radian?: " & rad)
        Debug.Print(
"ang offset: " & ang)
        Debug.Print(
"x offset: " & xOff)
        Debug.Print(
"y offset: " & yOff)
        Debug.Print(
"lock start: " & LockStart)
        Debug.Print(
"lock end: " & LockEnd)

        
' Change spline to a cosine curve
        y = "cos(x)"
        Call skSpline.SetEquationParameters(y, r1, r2, rad, ang, xOff, yOff, LockStart, LockEnd)

        
' Reduce the number of points in the spline
        skSpline.Simplify(0.0#)

        swModel.SketchManager.InsertSketch(
True)

    
End Sub

  
    
Public swApp As SldWorks


End Class

 



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