Hallo Jan,
als Erstes immer die Programmier-Hilfe befragen. Dort findest Du folgendes Beispiel (ist eine SketchSpline - also 2D):
Public Sub DrawSketchSpline()
' Check to make sure a sketch is open.
If Not TypeOf ThisApplication.ActiveEditObject Is PlanarSketch Then
MsgBox "A sketch must be active."
Exit Sub
End If
' Set a reference to the active sketch.
Dim oSketch As PlanarSketch
Set oSketch = ThisApplication.ActiveEditObject
' Set a reference to the transient geometry collection.
Dim oTransGeom As TransientGeometry
Set oTransGeom = ThisApplication.TransientGeometry
' Create the collection that will contain the fit points for the spline.
Dim oFitPoints As ObjectCollection
Set oFitPoints = ThisApplication.TransientObjects.CreateObjectCollection
' Define the points to fit the spline through. In this example, transient
' points are used. They could also be sketch points and then the spline
' will automatically be constrained to fit through the sketch point. The
' points are at (0,0), (2,2), (4,0), (6,4), (7,-1).
Dim oPoints(1 To 5) As Point2d
Set oPoints(1) = oTransGeom.CreatePoint2d(0, 0)
oFitPoints.Add oPoints(1)
Set oPoints(2) = oTransGeom.CreatePoint2d(2, 2)
oFitPoints.Add oPoints(2)
Set oPoints(3) = oTransGeom.CreatePoint2d(4, 0)
oFitPoints.Add oPoints(3)
Set oPoints(4) = oTransGeom.CreatePoint2d(6, 4)
oFitPoints.Add oPoints(4)
Set oPoints(5) = oTransGeom.CreatePoint2d(7, -1)
oFitPoints.Add oPoints(5)
' Create the spline.
Dim oSpline As SketchSpline
Set oSpline = oSketch.SketchSplines.Add(oFitPoints)
' Change the curve to be closed.
oSpline.Closed = True
' Add a ground constraint to the third fit point.
Call oSketch.GeometricConstraints.AddGround(oSpline.FitPoint(3))
' Add an additional fit point.
Dim oNewPoint As Point2d
Set oNewPoint = oTransGeom.CreatePoint2d(8, 8)
Call oSpline.InsertFitPoint(oNewPoint, 5, True)
' Reposition the second fit point.
Call oSpline.FitPoint(2).MoveTo(oTransGeom.CreatePoint2d(2, 3))
' Delete a fit point by deleting the underlying sketch point.
oSpline.FitPoint(2).Delete
End Sub
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Grüsse, Paul
Inventor-Programmierung, Inventor-Tools und Inventor API-Schulung
thinkCAD Web-Kataloge
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